WO2021112285A1 - Système d'antennes chargé dans un véhicule - Google Patents

Système d'antennes chargé dans un véhicule Download PDF

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Publication number
WO2021112285A1
WO2021112285A1 PCT/KR2019/017062 KR2019017062W WO2021112285A1 WO 2021112285 A1 WO2021112285 A1 WO 2021112285A1 KR 2019017062 W KR2019017062 W KR 2019017062W WO 2021112285 A1 WO2021112285 A1 WO 2021112285A1
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WO
WIPO (PCT)
Prior art keywords
antenna
signal
band
circuit board
metal pattern
Prior art date
Application number
PCT/KR2019/017062
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English (en)
Korean (ko)
Inventor
유한필
유승우
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2019/017062 priority Critical patent/WO2021112285A1/fr
Publication of WO2021112285A1 publication Critical patent/WO2021112285A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station

Definitions

  • the present invention relates to an antenna system mounted on a vehicle. More particularly, it relates to an antenna system having a broadband antenna so as to be operable in various communication systems, and a vehicle having the same.
  • Electronic devices may be divided into mobile/portable terminals and stationary terminals depending on whether they can be moved. Again, the electronic device can be divided into a handheld terminal and a vehicle mounted terminal according to whether the user can directly carry the electronic device.
  • the functions of electronic devices are diversifying. For example, there are functions for data and voice communication, photo and video shooting through a camera, voice recording, music file playback through a speaker system, and output of images or videos to the display unit.
  • Some terminals add an electronic game play function or perform a multimedia player function.
  • recent mobile terminals can receive multicast signals that provide broadcast and visual content such as video or television programs.
  • electronic devices have diversified functions, they are implemented in the form of multimedia devices equipped with complex functions, such as, for example, taking pictures or videos, playing music or video files, and receiving games and broadcasts. have.
  • a wireless communication system using LTE communication technology has recently been commercialized for electronic devices to provide various services.
  • a wireless communication system using 5G communication technology will be commercialized in the future to provide various services.
  • some of the LTE frequency bands may be allocated to provide 5G communication services.
  • the mobile terminal may be configured to provide 5G communication services in various frequency bands. Recently, attempts have been made to provide a 5G communication service using the Sub6 band below the 6GHz band. However, in the future, it is expected that 5G communication service will be provided using millimeter wave (mmWave) band other than Sub6 band for faster data rate.
  • mmWave millimeter wave
  • a broadband antenna operating in both the LTE frequency band and the 5G Sub6 frequency band needs to be disposed in the vehicle other than the electronic device.
  • a wideband antenna such as a cone antenna has problems in that a vertical profile increases and weight increases as the overall antenna size, particularly, a height increases.
  • a broadband antenna such as a cone antenna may be implemented in a three-dimensional structure compared to a conventional planar antenna.
  • MIMO multiple input/output
  • an antenna system when such an antenna system is disposed in a vehicle, a plurality of antennas may be disposed.
  • an antenna operating in a low band (LB) of 600 MHz to 960 MHz has a problem that it is difficult to satisfy wideband performance in the corresponding band. have.
  • the present invention aims to solve the above and other problems.
  • another object is to improve the antenna performance while maintaining the height of the antenna system mounted in the vehicle below a certain level.
  • Another object of the present invention is to propose a structure for mounting an antenna system operable in a broadband in a vehicle to support various communication systems.
  • Another object of the present invention is to provide an antenna configuration capable of wideband operation in a low band (LB).
  • LB low band
  • Another object of the present invention is to provide an antenna configuration capable of improving radiation performance while operating in a wide band in a middle band (MB) and a high band (HB) in addition to the low band (LB).
  • MB middle band
  • HB high band
  • LB low band
  • an antenna system mounted on a vehicle includes: a circuit board configured to arrange a plurality of antennas; to radiate a first signal through a first metal pattern and a first slot printed on a first dielectric structure.
  • a first antenna configured to be connected to the circuit board through a first feeding unit; and a second antenna configured to be connected to the circuit board through a second feeder so as to radiate a second signal through a second metal pattern and a second slot on the second dielectric structure.
  • a transceiver circuit for controlling to radiate a signal through at least one of the first antenna and the second antenna may be further included.
  • the first antenna may operate in a first band corresponding to the low band LB, and may include a first portion and a second portion to be connected to one side and one end of the circuit board.
  • the second antenna may operate in a first band corresponding to the low band LB, and may include a first portion and a second portion to be connected to the other end and one end of the circuit board.
  • the transceiver is operatively coupled to the transceiver circuit, and the transmit/receive to perform multiple input/output (MIMO) in a first band corresponding to a low band (LB) through the first antenna and the second antenna. It may further include a baseband processor configured to control the sub-circuit.
  • MIMO multiple input/output
  • the first metal pattern formed under the first dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the first power supply unit may be connected to a first signal line of a dielectric region inside the ground metal pattern of the circuit board.
  • the second metal pattern formed under the second dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the second power supply unit may be connected to a second signal line in a dielectric region inside the ground metal pattern of the circuit board.
  • a fourth metal pattern printed on a fourth dielectric structure disposed at the other end of the circuit board and a fourth signal configured to radiate a fourth signal through a fourth slot are connected to the circuit board through a fourth feeder. 4 may further include an antenna.
  • the third metal pattern formed under the third dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the fourth metal pattern formed under the fourth dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the third power supply unit may be connected to a third signal line in a dielectric region inside the ground metal pattern of the circuit board.
  • the fourth power supply unit may be connected to a fourth signal line in a dielectric region inside the ground metal pattern of the circuit board.
  • the baseband processor is configured to perform multiple input/output (MIMO) in a second band corresponding to a middle band (MB) through the third antenna and the fourth antenna.
  • MIMO multiple input/output
  • MB middle band
  • the baseband processor performs carrier aggregation through a first signal of the first band received through the first antenna and a third signal of the second band received through the third antenna.
  • aggregation can be performed.
  • the baseband processor is configured to perform carrier aggregation (CA) through a second signal of the first band received through the second antenna and a fourth signal of the second band received through the fourth antenna. can be performed.
  • the fifth antenna may be disposed between the first antenna and the third antenna.
  • the sixth antenna may be disposed between the second antenna and the fourth antenna.
  • the fifth metal pattern formed under the fifth dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the sixth metal pattern formed under the sixth dielectric structure may be connected to a ground metal pattern of the circuit board.
  • the fifth power supply unit may be connected to a fifth signal line in a dielectric region inside the ground metal pattern of the circuit board.
  • the fourth power supply unit may be connected to a sixth signal line in a dielectric region inside the ground metal pattern of the circuit board.
  • the baseband processor is configured to control the transceiver circuit to perform multiple input/output (MIMO) in a third band corresponding to a high band (MB) through the fifth antenna and the sixth antenna.
  • MIMO multiple input/output
  • the baseband processor performs carrier aggregation through a first signal of the first band received through the first antenna and a sixth signal of the third band received through the sixth antenna.
  • aggregation can be performed.
  • the baseband processor is configured to perform carrier aggregation (CA) through a second signal of the first band received through the second antenna and a fifth signal of the third band received through the fifth antenna. can perform
  • the first antenna to the sixth antenna may be configured to radiate the first signal to the sixth signal in an outward direction of the circuit board through the first slot to the sixth slot.
  • the first metal pattern to the sixth metal pattern may be formed on an outer surface of the first dielectric structure to the sixth dielectric structure. Meanwhile, the first to sixth metal patterns may not be formed on inner surfaces of the first to sixth dielectric structures.
  • At least one of the first signal line to the sixth signal line corresponding to the first feeding unit to the sixth power feeding unit includes a first signal pad and a second signal pad spaced apart from each other by a predetermined interval. can do.
  • a first matching element disposed between the first signal pad and the second signal pad may be included.
  • the apparatus may further include a second matching device disposed between the first signal pad and the ground metal pattern and a third matching device disposed between the second signal pad and the ground metal pattern.
  • At least one of the first feeder to the sixth feeder may be connected to the first signal pad. Meanwhile, the rest of the first to sixth power feeders may be connected to the second signal pad.
  • the radiation pattern of the antenna in the antenna system mounted on the vehicle can be improved in the horizontal direction.
  • the antenna system can be optimized with different antennas in the low band (LB) and other bands, and the antenna system can be arranged in an optimal configuration and performance within the roof frame of the vehicle.
  • LB low band
  • MIMO multiple input/output
  • diversity operations can be implemented in an antenna system of a vehicle using a plurality of antennas in a specific band.
  • FIG. 1 is a block diagram illustrating an electronic device related to the present invention.
  • FIGS. 2A to 2C show a structure in which the antenna system can be mounted in the vehicle in the vehicle including the antenna system mounted on the vehicle according to the present invention.
  • FIG. 3 is a block diagram referenced for explaining a vehicle according to an embodiment of the present invention.
  • FIG. 4 shows the configuration of a wireless communication unit of an electronic device or vehicle operable in a plurality of wireless communication systems according to the present invention.
  • 5A is a conceptual diagram illustrating a vehicle configured to communicate with a base station according to an example.
  • 5B illustrates an antenna and an antenna radiation pattern that may be mounted on a vehicle according to an example.
  • FIG. 6 illustrates an antenna system that may be mounted inside a vehicle roof frame according to an exemplary embodiment.
  • FIG. 7A is a perspective view of a plurality of antennas that may be disposed in an antenna system according to an exemplary embodiment.
  • FIG. 7B is a perspective view of a plurality of antennas that may be disposed in the antenna system according to an exemplary embodiment, as viewed from another side.
  • FIG. 8A shows a configuration in which various types of antennas according to the present invention are connected to a circuit board through a power supply unit and arranged so that ground planes are interconnected.
  • FIG. 8B is an enlarged view of a configuration in which a power supply unit and a metal pattern of the antenna of FIG. 8A are connected to a circuit board.
  • FIG. 9 shows a configuration of different types of antennas according to an embodiment.
  • FIG. 10 illustrates a configuration in which a signal pad in a circuit board having an impedance matching circuit including a plurality of matching elements and a power supply unit of an antenna are connected according to an exemplary embodiment.
  • FIG. 11 illustrates a block diagram of a wireless communication system to which the methods proposed in this specification can be applied.
  • Electronic devices described herein include mobile phones, smart phones, laptop computers, digital broadcasting terminals, personal digital assistants (PDAs), portable multimedia players (PMPs), navigation systems, and slate PCs.
  • PDAs personal digital assistants
  • PMPs portable multimedia players
  • slate PCs slate PCs.
  • tablet PCs ultrabooks
  • wearable devices for example, watch-type terminals (smartwatch), glass-type terminals (smart glass), HMD (head mounted display), etc. may be included. have.
  • the vehicle-mounted antenna system referred to in this specification mainly refers to an antenna system disposed outside the vehicle, but may include a mobile terminal (electronic device) disposed inside the vehicle or possessed by a user riding in the vehicle. .
  • the electronic device may include a mobile terminal (electronic device) disposed inside the vehicle or carried by a user riding in the vehicle.
  • a vehicle on which a communication system such as an antenna system is mounted may be referred to as an electronic device.
  • the electronic device 100 includes a wireless communication unit 110 , an input unit 120 , a sensing unit 140 , an output unit 150 , an interface unit 160 , a memory 170 , a control unit 180 , and a power supply unit 190 . ) and the like.
  • the components shown in FIG. 1 are not essential for implementing the electronic device, and thus the electronic device described herein may have more or fewer components than those listed above.
  • the wireless communication unit 110 among the components, between the electronic device 100 and the wireless communication system, between the electronic device 100 and another electronic device 100, or the electronic device 100 and an external server It may include one or more modules that enable wireless communication between them. Also, the wireless communication unit 110 may include one or more modules for connecting the electronic device 100 to one or more networks.
  • the one or more networks may be, for example, a 4G communication network and a 5G communication network.
  • the wireless communication unit 110 may include at least one of a 4G wireless communication module 111 , a 5G wireless communication module 112 , a short-range communication module 113 , and a location information module 114 .
  • the 4G wireless communication module 111 may transmit and receive a 4G signal with a 4G base station through a 4G mobile communication network. In this case, the 4G wireless communication module 111 may transmit one or more 4G transmission signals to the 4G base station. In addition, the 4G wireless communication module 111 may receive one or more 4G reception signals from the 4G base station.
  • Up-Link (UL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G transmission signals transmitted to the 4G base station.
  • Down-Link (DL) Multi-Input Multi-Output (MIMO) may be performed by a plurality of 4G reception signals received from a 4G base station.
  • the 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network.
  • the 4G base station and the 5G base station may have a Non-Stand-Alone (NSA) structure.
  • NSA Non-Stand-Alone
  • the 4G base station and the 5G base station may be a co-located structure disposed at the same location in a cell.
  • the 5G base station may be disposed in a stand-alone (SA) structure at a location separate from the 4G base station.
  • SA stand-alone
  • the 5G wireless communication module 112 may transmit and receive a 5G signal with a 5G base station through a 5G mobile communication network. In this case, the 5G wireless communication module 112 may transmit one or more 5G transmission signals to the 5G base station. In addition, the 5G wireless communication module 112 may receive one or more 5G reception signals from the 5G base station.
  • the 5G frequency band may use the same band as the 4G frequency band, and this may be referred to as LTE re-farming.
  • the 5G frequency band the Sub6 band, which is a band below 6 GHz, may be used.
  • a millimeter wave (mmWave) band may be used as a 5G frequency band to perform broadband high-speed communication.
  • the electronic device 100 may perform beam forming for communication coverage expansion with a base station.
  • the 5G communication system may support a larger number of Multi-Input Multi-Output (MIMO) in order to improve transmission speed.
  • MIMO Multi-Input Multi-Output
  • UL MIMO may be performed by a plurality of 5G transmission signals transmitted to the 5G base station.
  • DL MIMO may be performed by a plurality of 5G reception signals received from a 5G base station.
  • the wireless communication unit 110 may be in a dual connectivity (DC) state with the 4G base station and the 5G base station through the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • DC dual connectivity
  • the dual connection with the 4G base station and the 5G base station may be referred to as EN-DC (EUTRAN NR DC).
  • EUTRAN is an Evolved Universal Telecommunication Radio Access Network, which means a 4G wireless communication system
  • NR is New Radio, which means a 5G wireless communication system.
  • the 4G base station and the 5G base station have a co-located structure, throughput improvement is possible through inter-CA (Carrier Aggregation). Therefore, the 4G base station and the 5G base station In the EN-DC state, the 4G reception signal and the 5G reception signal may be simultaneously received through the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • inter-CA Carrier Aggregation
  • Short-range communication module 113 is for short-range communication, Bluetooth (Bluetooth), RFID (Radio Frequency Identification), infrared communication (Infrared Data Association; IrDA), UWB (Ultra Wideband), ZigBee, NFC At least one of (Near Field Communication), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, and Wireless Universal Serial Bus (USB) technologies may be used to support short-range communication.
  • the short-distance communication module 114 between the electronic device 100 and a wireless communication system, between the electronic device 100 and another electronic device 100, or the electronic device 100 through wireless area networks (Wireless Area Networks) ) and a network in which another electronic device 100 or an external server is located may support wireless communication.
  • the local area network may be a local area network (Wireless Personal Area Networks).
  • short-range communication between electronic devices may be performed using the 4G wireless communication module 111 and the 5G wireless communication module 112 .
  • short-distance communication may be performed between electronic devices using a device-to-device (D2D) method without going through a base station.
  • D2D device-to-device
  • carrier aggregation using at least one of the 4G wireless communication module 111 and the 5G wireless communication module 112 and the Wi-Fi communication module 113
  • 4G + WiFi carrier aggregation may be performed using the 4G wireless communication module 111 and the Wi-Fi communication module 113
  • 5G + WiFi carrier aggregation may be performed using the 5G wireless communication module 112 and the Wi-Fi communication module 113 .
  • the location information module 114 is a module for acquiring a location (or current location) of an electronic device, and a representative example thereof includes a Global Positioning System (GPS) module or a Wireless Fidelity (WiFi) module.
  • GPS Global Positioning System
  • Wi-Fi Wireless Fidelity
  • the electronic device may acquire the location of the electronic device by using a signal transmitted from a GPS satellite.
  • the location of the electronic device may be acquired based on information of the Wi-Fi module and a wireless access point (AP) that transmits or receives a wireless signal.
  • AP wireless access point
  • the location information module 114 may perform any function of the other modules of the wireless communication unit 110 to obtain data on the location of the electronic device as a substitute or additionally.
  • the location information module 114 is a module used to obtain the location (or current location) of the electronic device, and is not limited to a module that directly calculates or obtains the location of the electronic device.
  • the electronic device utilizes the 5G wireless communication module 112
  • the 5G base station of the millimeter wave (mmWave) band is deployed in a small cell having a narrow coverage, it is advantageous to obtain the location of the electronic device.
  • the input unit 120 includes a camera 121 or an image input unit for inputting an image signal, a microphone 122 or an audio input unit for inputting an audio signal, and a user input unit 123 for receiving information from a user, for example, , a touch key, a push key, etc.).
  • the voice data or image data collected by the input unit 120 may be analyzed and processed as a user's control command.
  • the sensing unit 140 may include one or more sensors for sensing at least one of information in the electronic device, surrounding environment information surrounding the electronic device, and user information.
  • the sensing unit 140 may include a proximity sensor 141, an illumination sensor 142, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, and gravity.
  • G-sensor gyroscope sensor
  • motion sensor RGB sensor
  • infrared sensor IR sensor: infrared sensor
  • fingerprint sensor fingerprint sensor
  • ultrasonic sensor ultrasonic sensor
  • optical sensors eg, cameras (see 121)
  • microphones see 122
  • battery gauges environmental sensors (eg, barometers, hygrometers, thermometers, radiation detection sensors, It may include at least one of a thermal sensor, a gas sensor, etc.) and a chemical sensor (eg, an electronic nose, a healthcare sensor, a biometric sensor, etc.).
  • the electronic device disclosed in the present specification may combine and utilize information sensed by at least two or more of these sensors.
  • the output unit 150 is for generating an output related to visual, auditory or tactile sense, and includes at least one of a display unit 151 , a sound output unit 152 , a haptip module 153 , and an optical output unit 154 . can do.
  • the display unit 151 may implement a touch screen by forming a layer structure with the touch sensor or being formed integrally with the touch sensor. Such a touch screen may function as the user input unit 123 providing an input interface between the electronic device 100 and the user, and may provide an output interface between the electronic device 100 and the user.
  • the interface unit 160 serves as a passage with various types of external devices connected to the electronic device 100 .
  • Such an interface unit 160 a wired / wireless headset port (port), an external charger port (port), a wired / wireless data port (port), a memory card (memory card) port, for connecting a device equipped with an identification module It may include at least one of a port, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port.
  • the electronic device 100 may perform appropriate control related to the connected external device.
  • the memory 170 stores data supporting various functions of the electronic device 100 .
  • the memory 170 may store a plurality of application programs (or applications) driven in the electronic device 100 , data for operation of the electronic device 100 , and commands. At least some of these application programs may be downloaded from an external server through wireless communication. In addition, at least some of these application programs may exist on the electronic device 100 from the time of shipment for basic functions (eg, incoming calls, outgoing functions, message reception, and outgoing functions) of the electronic device 100 . Meanwhile, the application program may be stored in the memory 170 , installed on the electronic device 100 , and driven to perform an operation (or function) of the electronic device by the controller 180 .
  • the controller 180 In addition to the operation related to the application program, the controller 180 generally controls the overall operation of the electronic device 100 .
  • the controller 180 may provide or process appropriate information or functions to the user by processing signals, data, information, etc. input or output through the above-described components or by driving an application program stored in the memory 170 .
  • controller 180 may control at least some of the components discussed with reference to FIG. 1 in order to drive an application program stored in the memory 170 . Furthermore, in order to drive the application program, the controller 180 may operate at least two or more of the components included in the electronic device 100 in combination with each other.
  • the power supply unit 190 receives external power and internal power under the control of the control unit 180 to supply power to each component included in the electronic device 100 .
  • the power supply 190 includes a battery, and the battery may be a built-in battery or a replaceable battery.
  • At least some of the respective components may operate in cooperation with each other to implement an operation, control, or control method of an electronic device according to various embodiments described below. Also, the operation, control, or control method of the electronic device may be implemented on the electronic device by driving at least one application program stored in the memory 170 .
  • FIGS. 2A to 2C show a structure in which the antenna system can be mounted in the vehicle in the vehicle including the antenna system mounted on the vehicle according to the present invention.
  • FIGS. 2A and 2B illustrate a configuration in which the antenna system 1000 is mounted on or within a roof of a vehicle.
  • FIG. 2C shows a structure in which the antenna system 1000 is mounted in a roof frame of a vehicle roof and a rear mirror.
  • the present invention in order to improve the appearance of a vehicle (vehicle) and preserve telematics performance in a collision, the existing Shark Fin antenna is replaced with a non-protruding flat antenna.
  • the present invention intends to propose an antenna in which an LTE antenna and a 5G antenna are integrated in consideration of 5G (5G) communication along with the existing mobile communication service (LTE) provision.
  • the antenna system 1000 is disposed on the roof of the vehicle.
  • a radome 2000a for protecting the antenna system 1000 from an external environment and an external impact when driving a vehicle may surround the antenna system 1000 .
  • the radome 2000a may be made of a dielectric material through which a radio wave signal transmitted/received between the antenna system 1000 and the base station may be transmitted.
  • the antenna system 1000 may be disposed within a roof structure of a vehicle, and may be configured such that at least a portion of the roof structure is made of a non-metal.
  • at least a part of the roof structure 2000b of the vehicle may be made of a non-metal, and may be made of a dielectric material through which a radio signal transmitted/received between the antenna system 1000 and the base station may be transmitted.
  • the antenna system 1000 may be disposed inside a roof frame of a vehicle, and at least a portion of the roof frame 2000c may be configured to be implemented with a non-metal.
  • at least a portion of the roof frame 2000c of the vehicle 300 may be made of a non-metal, and may be made of a dielectric material through which a radio signal transmitted/received between the antenna system 1000 and the base station may be transmitted.
  • FIG. 3 is a block diagram referenced to describe a vehicle according to an embodiment of the present invention.
  • the vehicle 300 may include wheels rotated by a power source and a steering input device for controlling the traveling direction of the vehicle 300 .
  • the vehicle 300 may be an autonomous driving vehicle.
  • the vehicle 300 may be switched to an autonomous driving mode or a manual mode (a capital driving mode) based on a user input.
  • the vehicle 300 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on a user input received through the user interface device 310 .
  • the vehicle 300 may be switched to an autonomous driving mode or a manual mode based on driving situation information.
  • the driving situation information may be generated based on object information provided by the object detection apparatus 320 .
  • the vehicle 300 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on driving situation information generated by the object detection device 320 .
  • the vehicle 300 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on driving situation information received through the communication device 400 .
  • the vehicle 300 may be switched from the manual mode to the autonomous driving mode or from the autonomous driving mode to the manual mode based on information, data, and signals provided from an external device.
  • the autonomous driving vehicle 300 may be operated based on a driving system.
  • the autonomous vehicle 300 may be operated based on information, data, or signals generated by the driving system, the vehicle taking-out system, and the parking system.
  • the autonomous driving vehicle 300 may receive a user input for driving through the driving manipulation device. Based on the user input received through the driving manipulation device, the vehicle 300 may be driven.
  • the overall length refers to the length from the front part to the rear part of the vehicle 300
  • the width refers to the width of the vehicle 300
  • the height refers to the length from the lower part of the wheel to the roof.
  • the overall length direction (L) is the standard direction for measuring the overall length of the vehicle 300
  • the full width direction (W) is the standard direction for measuring the full width of the vehicle 300
  • the total height direction (H) is the vehicle (300) may refer to a direction as a reference for measuring the total height.
  • the vehicle 300 may include a user interface device 310 , an object detection device 320 , a navigation system 350 , and a communication device 400 .
  • the vehicle may further include a sensing unit 361 , an interface unit 362 , a memory 363 , a power supply unit 364 , and a vehicle control unit 365 in addition to the above-described device.
  • the sensing unit 361 , the interface unit 362 , the memory 363 , the power supply unit 364 , and the vehicle control device 365 have low direct relevance to wireless communication through the antenna system 1000 according to the present invention. . Accordingly, a detailed description thereof will be omitted herein.
  • the vehicle 300 may further include other components in addition to the components described herein, or may not include some of the components described herein.
  • the user interface device 310 is a device for communication between the vehicle 300 and a user.
  • the user interface device 310 may receive a user input and provide information generated in the vehicle 300 to the user.
  • the vehicle 300 may implement User Interfaces (UIs) or User Experiences (UXs) through the user interface device 310 .
  • UIs User Interfaces
  • UXs User Experiences
  • the object detecting device 320 is a device for detecting an object located outside the vehicle 300 .
  • the object may be various objects related to the operation of the vehicle 300 .
  • the object may be classified into a moving object and a fixed object.
  • the moving object may be a concept including other vehicles and pedestrians.
  • the fixed object may be a concept including a traffic signal, a road, and a structure.
  • the object detection apparatus 320 may include a camera 321 , a radar 322 , a lidar 323 , an ultrasonic sensor 324 , an infrared sensor 325 , and a processor 330 .
  • the object detecting apparatus 320 may further include other components in addition to the described components, or may not include some of the described components.
  • the processor 330 may control the overall operation of each unit of the object detection apparatus 320 .
  • the processor 330 may detect and track the object based on the acquired image.
  • the processor 330 may perform operations such as calculating a distance to an object and calculating a relative speed with respect to an object through an image processing algorithm.
  • the processor 330 may detect and track the object based on the reflected electromagnetic wave that is reflected by the object and returns.
  • the processor 330 may perform operations such as calculating a distance to an object and calculating a relative speed with respect to the object based on the electromagnetic wave.
  • the processor 330 may detect and track the object based on the reflected laser light from which the transmitted laser is reflected by the object and returned.
  • the processor 330 may perform operations such as calculating a distance to an object and calculating a relative speed with respect to the object based on the laser light.
  • the processor 330 may detect and track the object based on the reflected ultrasound reflected back by the transmitted ultrasound.
  • the processor 330 may perform operations such as calculating a distance to an object and calculating a relative speed with respect to the object based on the ultrasound.
  • the processor 330 may detect and track the object based on the reflected infrared light reflected back by the transmitted infrared light.
  • the processor 330 may perform operations such as calculating a distance to an object and calculating a relative speed with respect to the object based on the infrared light.
  • the object detecting apparatus 320 may include a plurality of processors 330 or may not include the processors 330 .
  • each of the camera 321 , the radar 322 , the lidar 323 , the ultrasonic sensor 324 , and the infrared sensor 325 may individually include a processor.
  • the object detection apparatus 320 may be operated under the control of the processor or the controller 370 of the apparatus in the vehicle 300 .
  • the navigation system 350 may provide location information of the vehicle based on information obtained through the communication device 400 , in particular, the location information unit 420 . Also, the navigation system 350 may provide a route guidance service to a destination based on current location information of the vehicle. In addition, the navigation system 350 may provide guide information about a surrounding location based on information obtained through the object detection device 320 and/or the V2X communication unit 430 . Meanwhile, it is possible to provide guidance information, autonomous driving service, etc. based on V2V, V2I, and V2X information obtained through the wireless communication unit 460 operating together with the antenna system 1000 according to the present invention.
  • the object detection apparatus 320 may be operated under the control of the controller 370 .
  • the communication apparatus 400 is an apparatus for performing communication with an external device.
  • the external device may be another vehicle, a mobile terminal, or a server.
  • the communication device 400 may include at least one of a transmit antenna, a receive antenna, a radio frequency (RF) circuit capable of implementing various communication protocols, and an RF element to perform communication.
  • RF radio frequency
  • the communication device 400 may include a short-range communication unit 410 , a location information unit 420 , a V2X communication unit 430 , an optical communication unit 440 , a broadcast transceiver 450 , and a processor 470 .
  • the communication device 400 may further include other components in addition to the described components, or may not include some of the described components.
  • the short-range communication unit 410 is a unit for short-range communication.
  • the short-range communication unit 410 Bluetooth (Bluetooth), RFID (Radio Frequency Identification), infrared communication (Infrared Data Association; IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless) -Fidelity), Wi-Fi Direct, and wireless USB (Wireless Universal Serial Bus) technology may be used to support short-distance communication.
  • the short-range communication unit 410 may form wireless area networks to perform short-range communication between the vehicle 300 and at least one external device.
  • the location information unit 420 is a unit for obtaining location information of the vehicle 300 .
  • the location information unit 420 may include a Global Positioning System (GPS) module or a Differential Global Positioning System (DGPS) module.
  • GPS Global Positioning System
  • DGPS Differential Global Positioning System
  • the V2X communication unit 430 is a unit for performing wireless communication with a server (V2I: Vehicle to Infra), another vehicle (V2V: Vehicle to Vehicle), or a pedestrian (V2P: Vehicle to Pedestrian).
  • the V2X communication unit 430 may include an RF circuit capable of implementing protocols for communication with infrastructure (V2I), vehicle-to-vehicle communication (V2V), and communication with pedestrians (V2P).
  • the optical communication unit 440 is a unit for performing communication with an external device via light.
  • the optical communication unit 440 may include an optical transmitter that converts an electrical signal into an optical signal and transmits the optical signal, and an optical receiver that converts the received optical signal into an electrical signal.
  • the light transmitter may be formed to be integrated with a lamp included in the vehicle 300 .
  • the broadcast transceiver 450 is a unit for receiving a broadcast signal from an external broadcast management server or transmitting a broadcast signal to the broadcast management server through a broadcast channel.
  • the broadcast channel may include a satellite channel and a terrestrial channel.
  • the broadcast signal may include a TV broadcast signal, a radio broadcast signal, and a data broadcast signal.
  • the wireless communication unit 460 is a unit that performs wireless communication with one or more communication systems through one or more antenna systems.
  • the wireless communication unit 460 may transmit and/or receive a signal to a device in the first communication system through the first antenna system.
  • the wireless communication unit 460 may transmit and/or receive a signal to a device in the second communication system through the second antenna system.
  • the first communication system and the second communication system may be an LTE communication system and a 5G communication system, respectively.
  • the first communication system and the second communication system are not limited thereto and can be extended to any different communication systems.
  • the antenna system 1000 operating in the first and second communication systems may be arranged on the roof, in the roof or in the roof frame of the vehicle 300 according to one of FIGS. 2A to 2C of the vehicle 300 .
  • the wireless communication unit 460 of FIG. 3 may operate in both the first and second communication systems, and may be combined with the antenna system 1000 to provide multiple communication services to the vehicle 300 .
  • the processor 470 may control the overall operation of each unit of the communication device 400 .
  • the communication device 400 may include a plurality of processors 470 or may not include the processors 470 .
  • the communication device 400 may be operated under the control of a processor or control unit 370 of another device in the vehicle 300 .
  • the communication device 400 may implement a vehicle display device together with the user interface device 310 .
  • the vehicle display device may be referred to as a telematics device or an AVN (Audio Video Navigation) device.
  • the communication device 400 may be operated under the control of the controller 370 .
  • processors and control unit 370 include one or more processors and control unit 370, ASICs (application specific integrated circuits), DSPs (digital signal processors), DSPDs (digital signal processing devices), PLDs (programmable logic devices), FPGAs ( field programmable gate arrays), processors, controllers, micro-controllers, microprocessors, and other electrical units for performing functions.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGAs field programmable gate arrays
  • processors controllers, micro-controllers, microprocessors, and other electrical units for performing functions.
  • the vehicle 300 related to the present invention may operate in any one of a manual driving mode and an autonomous driving mode. That is, the driving mode of the vehicle 300 may include a manual driving mode and an autonomous driving mode.
  • the electronic device or vehicle includes a first power amplifier 210 , a second power amplifier 220 , and an RFIC 1250 .
  • the electronic device or vehicle may further include a modem (Modem, 1400) and an application processor (AP: Application Processor, 1450).
  • the modem (Modem, 1400) and the application processor (AP, 1450) are physically implemented on one chip, and may be implemented in a logically and functionally separated form.
  • the present invention is not limited thereto and may be implemented in the form of physically separated chips depending on the application.
  • the electronic device or vehicle includes a plurality of low noise amplifiers (LNAs) 210a to 240a in the receiver.
  • LNAs low noise amplifiers
  • the first power amplifier 210 , the second power amplifier 220 , the controller 1250 , and the plurality of low-noise amplifiers 210a to 240a are all operable in the first communication system and the second communication system.
  • the first communication system and the second communication system may be a 4G communication system and a 5G communication system, respectively.
  • the RFIC 1250 may be configured as a 4G/5G integrated type, but is not limited thereto and may be configured as a 4G/5G separate type according to an application.
  • the RFIC 1250 is configured as a 4G/5G integrated type, it is advantageous in terms of synchronization between 4G/5G circuits, as well as the advantage that control signaling by the modem 1400 can be simplified.
  • the RFIC 1250 when configured as a 4G/5G separate type, it may be referred to as a 4G RFIC and a 5G RFIC, respectively.
  • the RFIC 1250 when the difference between the 5G band and the 4G band is large, such as when the 5G band is configured as a millimeter wave band, the RFIC 1250 may be configured as a 4G/5G separate type.
  • the RFIC 1250 when the RFIC 1250 is configured as a 4G/5G separate type, there is an advantage that RF characteristics can be optimized for each of the 4G band and the 5G band.
  • the RFIC 1250 is configured as a 4G/5G separate type, the 4G RFIC and the 5G RFIC are logically and functionally separated, and it is also possible to be physically implemented on a single chip.
  • the application processor (AP) 1450 is configured to control the operation of each component of the electronic device. Specifically, the application processor (AP) 1450 may control the operation of each component of the electronic device through the modem 1400 .
  • the modem 1400 may be controlled through a power management IC (PMIC) for low power operation of the electronic device. Accordingly, the modem 1400 may operate the power circuits of the transmitter and the receiver in the low power mode through the RFIC 1250 .
  • PMIC power management IC
  • the application processor (AP) 1450 may control the RFIC 1250 through the modem 1400 as follows. For example, if the electronic device is in an idle mode, the RFIC through the modem 1400 so that at least one of the first and second power amplifiers 210 and 220 is operated in a low power mode or turned off (1250) can be controlled.
  • the application processor (AP) 1450 may control the modem 1400 to provide wireless communication capable of low power communication.
  • the application processor (AP) 1450 may control the modem 1400 to enable wireless communication with the lowest power. Accordingly, even if the throughput is somewhat sacrificed, the application processor (AP) 1450 may control the modem 1400 and the RFIC 1250 to perform short-range communication using only the short-range communication module 113 .
  • the modem 1400 may be controlled to select an optimal wireless interface.
  • the application processor (AP) 1450 may control the modem 1400 to receive through both the 4G base station and the 5G base station according to the remaining battery level and available radio resource information.
  • the application processor (AP) 1450 may receive the remaining battery level information from the PMIC and the available radio resource information from the modem 1400 . Accordingly, if the battery level and available radio resources are sufficient, the application processor (AP) 1450 may control the modem 1400 and the RFIC 1250 to receive through both the 4G base station and the 5G base station.
  • the transmitter and receiver of each radio system may be integrated into one transceiver. Accordingly, there is an advantage that a circuit part integrating two types of system signals in the RF front-end can be removed.
  • the front-end components can be controlled by the integrated transceiver, the front-end components can be more efficiently integrated than when the transmission/reception system is separated for each communication system.
  • the multi-transmission/reception system as shown in FIG. 2 has the advantage that it is possible to control other communication systems as necessary, and thus system delay can be minimized, thereby enabling efficient resource allocation.
  • the first power amplifier 210 and the second power amplifier 220 may operate in at least one of the first and second communication systems.
  • the first and second power amplifiers 220 may operate in both the first and second communication systems.
  • one of the first and second power amplifiers 210 and 220 operates in the 4G band, and the other operates in the millimeter wave band. have.
  • 4x4 MIMO can be implemented using four antennas as shown in FIG. 2 .
  • 4x4 DL MIMO may be performed through the downlink (DL).
  • the first to fourth antennas ANT1 to ANT4 may be configured to operate in both the 4G band and the 5G band.
  • the 5G band is a millimeter wave (mmWave) band
  • the first to fourth antennas ANT1 to ANT4 may be configured to operate in any one of the 4G band and the 5G band.
  • each of a plurality of separate antennas may be configured as an array antenna in the millimeter wave band.
  • 2x2 MIMO implementation is possible using two antennas connected to the first power amplifier 210 and the second power amplifier 220 among the four antennas.
  • 2x2 UL MIMO (2 Tx) may be performed through the uplink (UL).
  • the 5G communication system is implemented as 1 Tx
  • only one of the first and second power amplifiers 210 and 220 may operate in the 5G band.
  • an additional power amplifier operating in the 5G band may be further provided.
  • a transmission signal may be branched in each of one or two transmission paths, and the branched transmission signal may be connected to a plurality of antennas.
  • a switch-type splitter or a power divider is built inside the RFIC corresponding to the RFIC 1250, there is no need for a separate component to be disposed outside, thereby improving component mountability.
  • SPDT single pole double throw
  • the electronic device or vehicle capable of operating in a plurality of wireless communication systems according to the present invention may further include a duplexer 231 , a filter 232 , and a switch 233 .
  • the duplexer 231 is configured to mutually separate signals of a transmission band and a reception band. At this time, the signals of the transmission band transmitted through the first and second power amplifiers 210 and 220 are applied to the antennas ANT1 and ANT4 through the first output port of the duplexer 231 . On the other hand, signals of the reception band received through the antennas ANT1 and ANT4 are received by the low noise amplifiers 210a and 240a through the second output port of the duplexer 231 .
  • the filter 232 may be configured to pass a signal of a transmission band or a reception band and block a signal of the remaining band.
  • the filter 232 may include a transmit filter connected to a first output port of the duplexer 231 and a receive filter connected to a second output port of the duplexer 231 .
  • the filter 232 may be configured to pass only a signal of a transmission band or only a signal of a reception band according to the control signal.
  • the switch 233 is configured to transmit either only a transmit signal or a receive signal.
  • the switch 233 may be configured in a single pole double throw (SPDT) type to separate a transmission signal and a reception signal using a time division multiplexing (TDD) method.
  • the transmission signal and the reception signal are signals of the same frequency band, and accordingly, the duplexer 231 may be implemented in the form of a circulator.
  • the switch 233 is also applicable to a frequency division multiplexing (FDD: Time Division Duplex) scheme.
  • FDD Fre Division Duplex
  • the switch 233 may be configured in a double pole double throw (DPDT) type to connect or block a transmission signal and a reception signal, respectively.
  • DPDT double pole double throw
  • the electronic device or vehicle according to the present invention may further include a modem 1400 corresponding to a control unit.
  • the RFIC 1250 and the modem 1400 may be referred to as a first controller (or first processor) and a second controller (second processor), respectively.
  • the RFIC 1250 and the modem 1400 may be implemented as physically separate circuits.
  • the RFIC 1250 and the modem 1400 may be physically or logically divided into one circuit.
  • the modem 1400 may control and process signals for transmission and reception of signals through different communication systems through the RFIC 1250 .
  • the modem 1400 may be obtained through control information received from the 4G base station and/or the 5G base station.
  • the control information may be received through a physical downlink control channel (PDCCH), but is not limited thereto.
  • PDCCH physical downlink control channel
  • the modem 1400 may control the RFIC 1250 to transmit and/or receive a signal through the first communication system and/or the second communication system in a specific time and frequency resource. Accordingly, the RFIC 1250 may control transmission circuits including the first and second power amplifiers 210 and 220 to transmit a 4G signal or a 5G signal in a specific time period. Also, the RFIC 1250 may control receiving circuits including the first to fourth low-noise amplifiers 210a to 240a to receive a 4G signal or a 5G signal in a specific time period.
  • FIG. 5A is a conceptual diagram illustrating a vehicle configured to communicate with a base station according to an example.
  • FIG. 5B shows an antenna and an antenna radiation pattern that may be mounted on a vehicle according to an example.
  • a vehicle 300 on a road may perform wireless communication with different base stations 600 and 700 .
  • the different base stations 600 and 700 may be base stations that perform 4G/5G wireless communication.
  • the vehicle 300 may perform wireless communication by performing handover between the first base station 600 and the second base station 700 .
  • the vehicle 300 may be in a dual connectivity (DC) state in which both the first base station 600 and the second base station 700 maintain a connected state.
  • one of the first base station 600 and the second base station 600 may be a base station of the first communication system, and the other may be a base station of the second communication system.
  • the vehicle 300 may request antenna characteristics of an omni-directional radiation pattern for communication with a GSM/LTE/5G base station.
  • the antenna currently mounted on the vehicle is an antenna of a monopole structure inside an external shark antenna module.
  • Such an external shark antenna module may protrude into the vehicle.
  • the external shark antenna module does not have enough space for the plurality of antennas to perform multiple input/output (MIMO) while covering the broadband of the plurality of communication systems.
  • MIMO multiple input/output
  • the antenna system according to the present invention needs to be designed with a plurality of antennas to perform multiple input/output (MIMO) while minimizing the height protruding to the outside.
  • MIMO multiple input/output
  • the requirements of the vehicle antenna system according to the present invention are as follows.
  • low elevation i.e. mean gain -2dB in the range of 70 to 90 degrees of elevation. That is, the average gain corresponding to the performance of horizontal radiation in the almost horizontal direction corresponding to low elevation is -2dB.
  • An antenna structure is required for improving antenna performance without additional height increase for securing antenna performance.
  • the low band (LB) antenna issue is as follows. In the on-ground environment of the vehicle and the design space of the antenna height of 17 mm or less, the beam peak is formed vertically, so it is difficult to satisfy the low elevation performance.
  • the shark antenna having a low elevation characteristic at less than 1 GHz may be located in an area outside the vehicle.
  • the vehicle antenna to be implemented in the present invention needs to be implemented to have a low height of 17 mm or less.
  • the present invention intends to propose a slot antenna module structure for a low-profile structure and an omni-directional radiation pattern.
  • FIG. 6 illustrates an antenna system that may be mounted inside a vehicle roof frame according to an exemplary embodiment.
  • FIG. 7A is a perspective view of a plurality of antennas that may be disposed in an antenna system according to an exemplary embodiment.
  • FIG. 7B is a perspective view viewed from another side of a plurality of antennas that may be disposed in the antenna system according to an embodiment.
  • FIG. 8A shows a configuration in which various types of antennas according to the present invention are connected to a circuit board through a power feeding unit, and a ground plane is arranged to be interconnected.
  • FIG. 8B is an enlarged view of a configuration in which a power feeding unit and a metal pattern of the antenna of FIG. 8A are connected to a circuit board.
  • the concept of the present invention is to modularize a slot antenna having an omni-directional radiation pattern as described above for each band/structure as shown in FIGS. 7A to 8B .
  • the shape of the dielectric structure may be a rectangular parallelepiped shape such as a wall shape, but is not limited thereto and may be changed to various shapes.
  • the low-band (LB) antenna may have a rectangular parallelepiped shape bent at a predetermined angle, for example, substantially 90 degrees.
  • the structural and technical differences of the slot antenna according to the present invention are as follows. In order to mount an omni-directional antenna inside a vehicle roof, a low profile structural characteristic is required.
  • the present invention intends to propose an antenna system including a plurality of antennas having a slot antenna structure that can be implemented in a low-profile, low-profile structure even inside a vehicle roof.
  • a vehicle including the antenna system 1000 includes a metal region corresponding to a vehicle roof frame.
  • the vehicle may further include a non-metal region formed in the roof frame and formed to surround the periphery of the metal region.
  • the antenna system 1000 that may be mounted on a vehicle includes a circuit board (PCB), a plurality of antennas 1100 , a transceiver circuit 1250 , and a baseband processor 1400 . It may be configured to include
  • a circuit board may be configured such that a plurality of antennas 1100 are disposed.
  • the plurality of antennas 1100 may include first and second antennas LB_ANT1 , LB_ANT2 , 1100-1 and 1100-2 operating in a low band (LB).
  • the plurality of antennas 1100 may further include third and fourth antennas MB_ANT3, MB_ANT4, 1100-3, and 1100-4 operating in a middle band (MB).
  • the plurality of antennas 1100 may further include fifth and sixth antennas HB_ANT5, HB_ANT6, 1100-5, and 1100-6 operating in a high band (HB).
  • the low band LB may be considered to include 650 MHz to 900 MHz or 600 MHz to 960 MHz.
  • the low band LB is not limited thereto and may be changed according to applications.
  • the middle band (MB) may be regarded as a frequency band starting from 1400 MHz, but is not limited thereto and may be changed according to applications.
  • the high band (HB) is a band higher than the middle band (MB) and may be regarded as a frequency band starting from 2500 MHz, but is not limited thereto and may be changed according to applications.
  • the first antennas LB_ANT1 and 1100-1 radiate a first signal through a first metal pattern M1 and a first slot S1 printed on a first dielectric structure.
  • the first antennas LB_ANT1 and 1100-1 may be configured to be connected to the circuit board PCB through the first feeding unit F1.
  • the second antennas LB_ANT2 and 1100 - 2 may be configured to radiate the second signal through the second metal pattern M2 and the second slot S2 printed on the second dielectric structure.
  • the first signal and the second signal may be signals of the first band corresponding to the low band LB.
  • the first slot S1 corresponding to the first antennas LB_ANT1 and 1100-1 and the second slot S2 corresponding to the second antennas LB_ANT2 and 1100-2 are slots implemented in the ground plane. It can operate similarly to an antenna. This is because the first metal M1 and the second metal M2 are connected to the ground of the circuit board PCB.
  • the (+) terminal and the (-) terminal are connected to the upper and lower metal regions through the slot.
  • the ⁇ /2-length slot has the same characteristics as the ⁇ /2-length dipole rotated by 90 degrees in the E-field direction and radiation pattern.
  • this slot antenna structure may satisfy the antenna radiation characteristics for GSM/LTE/5G Sub 6 required by the vehicle.
  • the slot antenna implemented on the above-described metal ground plane is similarly applicable to a medium-band (MB) antenna and a high-band (HB) antenna. Accordingly, the third slot S3 to the sixth slot S6 may also operate as slot antennas implemented on the metal ground plane as described above.
  • the transceiver circuit 1250 may control to radiate a signal through at least one of the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2.
  • the baseband processor 1400 is operatively coupled to the transceiver circuit 1250 and may perform multiple input/output (MIMO) in the first band corresponding to the low band LB.
  • MIMO multiple input/output
  • the baseband processor 1400 uses the transceiver circuit 1250 to perform multiple input/output (MIMO) in the first band through the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2.
  • MIMO multiple input/output
  • the plurality of antennas 1100 according to the present invention may be configured in different shapes depending on the operating band.
  • FIG. 9 shows a configuration of different types of antennas according to an embodiment.
  • the first antennas LB_ANT1 and 1100-1 may be configured as a first type antenna 1100a. Accordingly, the first antennas LB_ANT1 and 1100-1 operate in a first band corresponding to the low band LB, and the first part P1 and the first antenna are connected to one side and one end of the circuit board PCB. It may be composed of two parts (P2).
  • the second antennas LB_ANT2 and 1100 - 2 may also be configured as the first type antenna 1100a. Accordingly, the second antennas LB_ANT2 and 1100 - 2 operate in the first band corresponding to the low band LB, and the first portion P1 and the second antenna are connected to the other side and one end of the circuit board PCB. It may be composed of two parts (P2).
  • the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2 operating in the same band may be disposed on different sides of the circuit board PCB. Accordingly, the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2 may reduce interference levels and improve isolation.
  • the lengths of the slots S1 and S2 composed of the first part P1 and the second part P2 are It may be set to 1/2 of a wavelength corresponding to the first band, which is the low band LB.
  • the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2 are composed of a first part P1 and a second part P2, so that the arrangement design with other antennas in a limited space is easy. It can be easily configured.
  • the first metal pattern M1 formed under the first dielectric structure may be connected to the ground metal pattern of the circuit board PCB.
  • the first power supply unit F1 may be connected to a first signal line SL1 in a dielectric region inside the ground metal pattern of the circuit board PCB.
  • the second metal pattern M2 formed under the second dielectric structure may be connected to the ground metal pattern of the circuit board PCB.
  • the second power supply unit F2 may be connected to the second signal line SL2 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the antenna operating in the middle band (MB) according to the present invention may also be disposed on the circuit board (PCB) together with the low band (LB) antenna.
  • the third antennas MB_ANT3 and 1100 - 3 may be configured to radiate the third signal through the third metal pattern M3 and the third slot S3 printed on the third dielectric structure.
  • the third dielectric structure of the third antennas MB_ANT3 and 1100 - 3 is disposed at one end of the circuit board, and the third antennas MB_ANT3 and 1100 - 3 are connected to the circuit board PCB and the third feeding part. It may be configured to be connected via (F3).
  • the fourth antennas MB_ANT4 and 1100 - 4 may be configured to radiate the fourth signal through the fourth metal pattern M4 and the fourth slot S4 printed on the fourth dielectric structure.
  • the fourth dielectric structure of the fourth antennas MB_ANT4 and 1100 - 4 is disposed at the other end of the circuit board, and the fourth antennas MB_ANT4 and 1100 - 4 are connected to the circuit board PCB and the fourth feeding part. It may be configured to be connected via (F4).
  • the third signal and the fourth signal may be signals of the second band corresponding to the middle band (MB).
  • the third antennas MB_ANT3 and 1100 - 3 and the fourth antennas MB_ANT4 and 1100 - 4 operating in the same band may be disposed at different ends of the circuit board PCB. Accordingly, the third antennas MB_ANT3 and 1100-3 and the fourth antennas MB_ANT4 and 1100-4 may reduce interference levels and improve isolation.
  • the third metal pattern M3 formed under the third dielectric structure of the third antennas MB_ANT3 and 1100 - 3 may be connected to the ground metal pattern of the circuit board PCB.
  • the fourth metal pattern M4 formed under the fourth dielectric structure of the fourth antennas MB_ANT4 and 1100 - 4 may be connected to the ground metal pattern of the circuit board PCB.
  • the third power feeding part F3 may be connected to the third signal line SL3 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the fourth power supply unit F4 may be connected to the fourth signal line SL4 in the dielectric region inside the ground metal pattern of the circuit board PCB.
  • MIMO Multiple input/output
  • the baseband processor 1400 is operatively coupled to the transceiver circuit 1250 and the transceiver circuit 1250 to perform multiple input/output (MIMO) in the second band corresponding to the middle band (MB).
  • MIMO multiple input/output
  • the baseband processor 1400 may be configured to perform multiple input/output (MIMO) in the second band through the third antennas MB_ANT3 and 1100 - 3 and the fourth antennas MB_ANT4 and 1100 - 4 .
  • carrier aggregation may be performed to increase communication capacity.
  • the baseband processor 1400 may perform carrier aggregation (CA) through the first signal of the first band and the third signal of the second band. That is, the baseband processor 1400 configures the first signal of the first band received through the first antennas LB_ANT1 and 1100-1 and the second signal of the second band received through the third antenna MB_ANT3 and 1100-3.
  • Carrier aggregation (CA) may be performed through 3 signals.
  • carrier aggregation will be performed using the third antennas MB_ANT3 and 1100-3 spaced apart from the fourth antennas MB_ANT4 and 1100-4 adjacent to the first antennas LB_ANT1 and 1100-1.
  • CA carrier aggregation
  • carrier aggregation may be performed through other antennas.
  • the baseband processor 1400 may perform carrier aggregation (CA) through the second signal of the first band and the fourth signal of the second band. That is, the baseband processor 1400 configures the second signal of the first band received through the second antennas LB_ANT2 and 1100-2 and the second signal of the second band received through the fourth antenna MB_ANT4 and 1100-4.
  • Carrier aggregation (CA) may be performed through 4 signals.
  • carrier aggregation is to be performed using the second antennas LB_ANT2 and 1100-2 and the fourth antennas MB_ANT4 and 1100-4 spaced apart from the adjacent third antennas MB_ANT3 and 1100-3.
  • CA carrier aggregation
  • the baseband processor 1400 may perform multiple input/output (MIMO) using carrier-aggregated signals.
  • MIMO multiple input/output
  • the baseband processor 1400 obtains first information through the first signal of the first band and the fourth signal of the second band, and through the second signal of the first band and the third signal of the second band Second information may be obtained.
  • the baseband processor 1400 may reduce the level of interference between MIMO streams while performing DL-MIMO on the carrier-aggregated signal.
  • the baseband processor 1400 controls to receive the first CA signal through the fourth antennas MB_ANT4 and 1100-4 adjacent to the first antennas LB_ANT1 and 1100-1.
  • the baseband processor 1400 controls to simultaneously receive the second CA signal through the second antennas LB_ANT2 and 1100 - 2 and the third antennas MB_ANT3 and 1100 - 3 adjacent to each other.
  • the baseband processor 1400 may reduce the level of interference between MIMO streams while performing UL-MIMO on the carrier-aggregated signal.
  • the baseband processor 1400 controls to transmit the first CA signal through the fourth antennas MB_ANT4 and 1100-4 adjacent to the first antennas LB_ANT1 and 1100-1.
  • the baseband processor 1400 controls to simultaneously transmit the second CA signal through the second antennas LB_ANT2 and 1100 - 2 and the adjacent third antennas MB_ANT3 and 1100 - 3 .
  • the antenna operating in the high band (HB) according to the present invention may also be disposed on the circuit board (PCB) together with the low band (LB) antenna and/or the middle band (MB).
  • the fifth antennas HB_ANT5 and 1100 - 5 are configured to radiate a fifth signal through the fifth metal pattern M5 and the fifth slot S5 printed on the fifth dielectric structure.
  • the fifth dielectric structure of the fifth antennas HB_ANT5 and 1100 - 5 is disposed at one end of the circuit board PCB and is configured to be connected to the circuit board PCB and the fifth power supply unit F5 . can be
  • the sixth antennas HB_ANT6 and 1100 - 6 may be configured to radiate the sixth signal through the sixth metal pattern M6 and the sixth slot S6 printed on the sixth dielectric structure.
  • the sixth dielectric structure of the sixth antennas HB_ANT6 and 1100 - 6 is disposed at the other end of the circuit board, and the sixth antennas HB_ANT6 and 1100 - 6 are connected to the circuit board PCB and the sixth feeding part. It may be configured to be connected via (F6).
  • the fifth signal and the sixth signal may be signals of the third band corresponding to the high band HB.
  • the third antennas MB_ANT3 and 1100-3 to the sixth antennas HB_ANT6 and 1100-6 may be configured as a second type antenna 1100b. Accordingly, the third antennas MB_ANT3 and 1100 - 3 to the sixth antenna HB_ANT6 and 1100 - 6 may be configured in a straight line to be disposed only in one area of the circuit board PCB.
  • the low-band (LB) antennas such as the first antenna (LB_ANT1, 1100-1) and the second antenna (LB_ANT2, 1100-2) are disposed on both the side surface and the end of the circuit board (PCB) in the first part ( It may be composed of P1) and the second part P2.
  • the length of the first slot S1 to the sixth slot S6 may be set to be half the length of the wavelength of the corresponding band, thereby forming a resonance length. Accordingly, the antenna length may be determined by the length of the first slot S1 to the sixth slot S6 rather than the length of the first metal pattern M1 to the sixth metal pattern M6 to have broadband characteristics. Meanwhile, in order to reduce the area occupied by the low-band (LB) antenna, the dielectric constants of the first and second dielectric structures may be selected as dielectrics having a higher permittivity than that of other dielectric structures.
  • the fifth antennas HB_ANT5 and 1100-5 and the sixth antenna HB_ANT6 and 1100-6 operating in the same band may be disposed at different ends of the circuit board PCB. Accordingly, the fifth antenna HB_ANT5 and 1100-5 and the sixth antenna HB_ANT6 and 1100-6 may reduce the interference level and improve the isolation.
  • the fifth antennas HB_ANT5 and 1100 - 5 may be disposed between the first antennas LB_ANT1 and 1100-1 and the third antennas MB_ANT3 and 1100 - 3 . Accordingly, by allowing adjacent antennas to operate in different bands, interference caused by adjacent antennas of the same band can be prevented.
  • the sixth antennas HB_ANT6 and 1100 - 6 may be disposed between the second antennas LB_ANT2 and 1100 - 2 and the fourth antennas MB_ANT4 and 1100 - 4 . Accordingly, by allowing adjacent antennas to operate in different bands, interference caused by adjacent antennas of the same band can be prevented.
  • the fifth metal pattern M5 formed under the fifth dielectric structure of the fifth antennas HB_ANT5 and 1100 - 5 may be connected to the ground metal pattern of the circuit board PCB.
  • the sixth metal pattern M6 formed under the sixth dielectric structure of the sixth antennas HB_ANT6 and 1100 - 6 may be connected to the ground metal pattern of the circuit board PCB.
  • the fifth power feeding unit F5 may be connected to the fifth signal line SL5 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the sixth power supply unit F6 may be connected to the sixth signal line SL6 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the baseband processor 1400 is operatively coupled to the transceiver circuit 1250 and the transceiver circuit 1250 to perform multiple input/output (MIMO) in the third band corresponding to the high band (HB). can control
  • the baseband processor 1400 may be configured to perform multiple input/output (MIMO) in the third band through the fifth antennas HB_ANT5 and 1100-5 and the sixth antenna HB_ANT6 and 1100-6.
  • carrier aggregation may be performed to increase communication capacity.
  • the baseband processor 1400 may perform carrier aggregation (CA) through the first signal of the first band and the sixth signal of the third band. That is, the baseband processor 1400 configures the first signal of the first band received through the first antennas LB_ANT1 and 1100-1 and the third band of the third band received through the sixth antennas HB_ANT6 and 1100-6. It is possible to perform carrier aggregation (CA) through 6 signals.
  • carrier aggregation will be performed using the first antennas LB_ANT1 and 1100-1 and the sixth antennas HB_ANT6 and 1100-6 spaced apart from the adjacent fifth antennas HB_ANT5 and 1100-5. can Accordingly, it is possible to reduce the level of interference between adjacent bands during carrier aggregation (CA).
  • carrier aggregation may be performed through other antennas.
  • the baseband processor 1400 may perform carrier aggregation (CA) through the second signal of the first band and the fourth signal of the second band. That is, the baseband processor 1400 configures the second signal of the first band received through the second antennas LB_ANT2 and 1100-2 and the second signal of the third band received through the fifth antennas HB_ANT5 and 1100-5.
  • Carrier aggregation (CA) may be performed through 5 signals.
  • carrier aggregation is to be performed using the second antennas LB_ANT2 and 1100 - 2 and the fifth antennas HB_ANT5 and 1100 - 5 spaced apart from the adjacent sixth antennas HB_ANT6 and 1100 - 6 .
  • CA carrier aggregation
  • the baseband processor 1400 may perform multiple input/output (MIMO) using carrier-aggregated signals.
  • MIMO multiple input/output
  • the baseband processor 1400 obtains first information through the first signal of the first band and the fifth signal of the third band, and through the second signal of the first band and the sixth signal of the third band Second information may be obtained.
  • the baseband processor 1400 may reduce the level of interference between MIMO streams while performing DL-MIMO on the carrier-aggregated signal.
  • the baseband processor 1400 controls to receive the first CA signal through the fifth antennas HB_ANT5 and 1100-5 adjacent to the first antennas LB_ANT1 and 1100-1.
  • the baseband processor 1400 controls the second antennas LB_ANT2 and 1100 - 2 and adjacent sixth antennas HB_ANT6 and 1100 - 6 to simultaneously receive the second CA signal.
  • the baseband processor 1400 may reduce the level of interference between MIMO streams while performing UL-MIMO on the carrier-aggregated signal.
  • the baseband processor 1400 controls to transmit the first CA signal through the fifth antennas HB_ANT5 and 1100-5 adjacent to the first antennas LB_ANT1 and 1100-1.
  • the baseband processor 1400 controls the second antennas LB_ANT2 and 1100 - 2 and adjacent sixth antennas HB_ANT6 and 1100 - 6 to simultaneously transmit the second CA signal.
  • wireless communication with an entity outside the vehicle in the vehicle in the low band (LB), the middle band (MB) and the high band (HB) through the antenna system 1000 having a plurality of antennas 1100 according to the present invention can be performed.
  • the plurality of antennas 1100 of the antenna system 1000 that may be mounted inside the vehicle roof frame may be configured to radiate signals in an outward direction.
  • the first antennas LB_ANT1 and 1100-1 to the sixth antennas HB_ANT6 and 1100-6 radiate the first to sixth signals through the first slots S1 to S6.
  • the first to sixth signals may be radiated outward through the first to sixth slots S1 to S6 formed in the outward direction of the circuit board PCB.
  • the first metal patterns M1 to the sixth metal patterns M6 have the first dielectric structures to the sixth dielectrics. It may be formed on the outer surface of the structure. On the other hand, the first to sixth metal patterns M1 to M6 may not be formed on inner surfaces of the first to sixth dielectric structures.
  • the first metal patterns M1 to the sixth metal patterns M6 have the first dielectric structures to the sixth dielectrics. It may also be formed on the inner surface of the structure. Meanwhile, even when the first metal pattern M1 to the sixth metal pattern M6 are formed on the inner surface, the signal must be radiated only in the outward direction. To this end, the first slots S1 to the sixth slots S6 should be formed only on the outer surfaces of the first to sixth dielectric structures.
  • the power feeding unit of the plurality of antennas 1100 according to the present invention may be impedance matched through a signal line of a circuit board and a matching element.
  • FIG. 10 illustrates a configuration in which a signal pad in a circuit board having an impedance matching circuit including a plurality of matching elements and a power supply unit of an antenna are connected according to an exemplary embodiment.
  • the impedance matching circuit may include a first matching element MS1 disposed between the first signal pad and the second signal pad. Also, the impedance matching circuit may further include a second matching element MS2 disposed between the first signal pad and the ground metal pattern. Also, the impedance matching circuit may further include a third matching element MS3 disposed between the second signal pad and the ground metal pattern. Accordingly, the first matching element MS1 may be disposed to connect signal pads in the dielectric region DR. On the other hand, the second matching element MS2 and the third matching element MS3 may be disposed to connect each signal pad and the ground region in the dielectric region DR.
  • the present invention has an advantage that impedance matching can be performed by selecting the first matching elements MS1 to MS3 having different inductance and capacitance values for each band.
  • at least one of the first feeding units F1 to F6 may be connected to the first signal pad.
  • the rest of the first feeding part F1 to the sixth feeding part F6 may be connected to the second signal pad.
  • the impedance matching characteristic can be optimized by slightly varying the position of the feeding unit of each antenna to an arbitrary position between the first signal pad and the second signal pad.
  • the plurality of antennas 1100-1 to 1100-6 operating in the low-band (LB), middle-band (MB), and high-band (HB) according to the present invention includes the transceiver circuit 1250 and the may be operatively coupled.
  • the transceiver circuit 1250 may be disposed on the front or rear surface of the circuit board PCB.
  • the transceiver circuit 1250 may be connected to the power supply units F1 to F6 of each antenna through a signal pad formed in a dielectric region on the front surface of the circuit board (PCB).
  • the transceiver circuit 1250 may control to radiate a signal through at least one of the first antennas LB_ANT1 and 1100-1 to the sixth antenna HB_ANT6 and 1100-6.
  • the transceiver circuit 1250 may be a radio frequency integrated chip (RFIC) including a power amplifier and a low noise amplifier.
  • RFIC radio frequency integrated chip
  • the baseband processor 1400 may be connected to the transceiver circuit 1250 to control the transceiver circuit 1250 .
  • the baseband processor 1400 performs multiple input/output (MIMO) and/or carrier aggregation (CA) through the first antennas LB_ANT1 and 1100-1 to the sixth antennas HB_ANT6 and 1100-6. can be configured.
  • MIMO multiple input/output
  • CA carrier aggregation
  • the baseband processor 1400 may be configured to control the transceiver circuit 1250 to perform multiple input/output (MIMO) through the first and second antennas LB ANT1 and LB ANT2 in the first frequency band. . In addition, the baseband processor 1400 may be configured to control the transceiver circuit 1250 to perform multiple input/output (MIMO) through the third and fourth antennas MB ANT1 and MB ANT2 in the second frequency band. . In addition, the baseband processor 1400 may be configured to control the transceiver circuit 1250 to perform multiple input/output (MIMO) through the fifth and sixth antennas HB ANT1 and HB ANT2 in the third frequency band. . In this regard, the interval between antennas for performing MIMO may be set to be at least 5 times or more of the operating frequency.
  • the antenna system 1000 that can be mounted on a vehicle according to an aspect of the present invention has been described.
  • a vehicle equipped with the antenna system 100 according to another aspect of the present invention will be described.
  • the description of the above-described antenna system may also be applied to a vehicle, and the description of a vehicle on which the antenna system is mounted may also be applied to the above-described antenna system.
  • FIG. 3 shows a configuration of a vehicle having the antenna system according to an example of FIGS. 1 to 2C and FIGS. 4 to 10 .
  • the vehicle 300 may include the antenna system 1000 constituting at least a part of the communication device 400 .
  • the vehicle 300 may include an object detection device, a navigation system, or the like, or a telematics module (TCU) that interworks with them.
  • the telematics module (TCU) may include various components other than the object detection apparatus as shown in FIG. 3 .
  • the antenna system 1000 mounted on the vehicle according to the present invention is a transceiver for controlling to radiate a signal through at least one of the first antenna (LB_ANT1, 1100-1) to the sixth antenna (HB_ANT6, 1100-6) circuit 1250 may be included.
  • the antenna system mounted on the vehicle according to the present invention may further include a baseband processor 1400 configured to communicate with at least one of an adjacent vehicle, a Road Side Unit (RSU), and a base station through the transceiver circuit 1250.
  • RSU Road Side Unit
  • the present invention when it is necessary to simultaneously receive information from various entities such as an adjacent vehicle, an RSU, or a base station for autonomous driving, etc., there is an advantage that broadband reception is possible through MIMO. Accordingly, the vehicle can receive different information from various entities at the same time to improve the communication capacity. Accordingly, the communication capacity can be improved through the MIMO operation without extending the bandwidth in the vehicle.
  • the vehicle may simultaneously receive the same information from various entities at the same time, improving reliability for surrounding information and reducing latency.
  • URLLC Ultra Reliable Low Latency Communication
  • a base station performing scheduling may preferentially allocate a time slot for a vehicle operating as a URLLC UE. For this, some of the specific time-frequency resources already allocated to other UEs may be punctured.
  • the first and second antennas LB_ANT1 and LB_ANT2 of the antenna system of the present invention may operate as radiators in the low band LB, which is the first frequency band.
  • the third and fourth antennas MB_ANT3 and MB_ANT4 may operate as radiators in a second frequency band higher than the first frequency band.
  • the fifth and sixth antennas HB_ANT5 and HB_ANT6 may operate as radiators in a third frequency band higher than the second frequency band.
  • the baseband processor 1400 receives the first signal of the first band through at least one of the first and second antennas LB_ANT1 and LB_ANT2, and receives at least one of the third and fourth antennas MB_ANT3 and MB_ANT4.
  • the transceiver circuit 1250 may be controlled to receive the second signal of the second band through one.
  • the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the first band and the second band are combined.
  • CA carrier aggregation
  • the baseband processor 1400 receives the first signal of the first band through at least one of the first and second antennas LB_ANT1 and LB_ANT2, and receives at least one of the fifth and sixth antennas HB_ANT5 and HB_ANT6.
  • the transceiver circuit 1250 may be controlled to receive the third signal of the third band through . Accordingly, the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the first band and the third band are combined.
  • CA carrier aggregation
  • the baseband processor 1400 receives the second signal of the second band through at least one of the third and fourth antennas MB_ANT3 and MB_ANT4, and receives at least one of the fifth and sixth antennas HB_ANT5 and HB_ANT6.
  • the transceiver circuit 1250 may be controlled to receive the third signal of the third band through . Accordingly, the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the second band and the third band are combined.
  • CA carrier aggregation
  • the vehicle may perform Enhanced Mobile Broad Band (eMBB) communication and the vehicle may operate as an eMBB UE.
  • eMBB Enhanced Mobile Broad Band
  • a base station performing scheduling may allocate a wideband frequency resource for a vehicle operating as an eMBB UE.
  • carrier aggregation (CA) may be performed on spare frequency bands except for the frequency resources already allocated to other UEs.
  • the broadband antenna system according to the present invention may be mounted on a vehicle in the structure shown in FIGS. 2A to 2C . That is, the vehicle on which the broadband antenna system is mounted may be mounted on the vehicle roof, inside the roof, or inside the roof frame as shown in FIGS. 2A to 2C .
  • the vehicle 300 on which the broadband antenna system according to the present invention is mounted is equipped with the antenna system 1000 , and the antenna system 1000 is provided by itself or the communication device 400 . It is possible to perform short-distance communication, wireless communication, and V2X communication.
  • the baseband processor 1400 may control the antenna system 1000 to receive signals from, or transmit signals to, adjacent vehicles, RSUs, and base stations through the antenna system 1000 .
  • the baseband processor 1400 may control the communication device 400 to receive signals from, or transmit signals to, adjacent vehicles, RSUs, adjacent things, and base stations through the communication device 400 .
  • the information on the adjacent object may be acquired through an object detection device such as the camera 331 , the radar 332 , the lidar 333 , and the sensors 334 and 335 of the vehicle 300 .
  • the baseband processor 1400 may control the communication device 400 and the antenna system 1000 to receive signals from, or transmit signals to, adjacent vehicles, RSUs, adjacent objects, and base stations.
  • the vehicle 300 including the antenna system 1000 includes a plurality of antennas LB_ANT1 to HB_ANT6 or 1100-1 to 1100-6, and a transceiver circuit 1250 . and a baseband processor 1400 .
  • the baseband processor 1400 receives the first signal of the first band through at least one of the first and second antennas LB_ANT1 and LB_ANT2, and through at least one of the third and fourth antennas MB_ANT3 and MB_ANT4.
  • the transceiver circuit 1250 may be controlled to receive the second signal of the second band. Accordingly, the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the first band and the second band are combined.
  • CA carrier aggregation
  • the baseband processor 1400 receives the first signal of the first band through at least one of the first and second antennas LB_ANT1 and LB_ANT2, and receives at least one of the fifth and sixth antennas HB_ANT5 and HB_ANT6.
  • the transceiver circuit 1250 may be controlled to receive the third signal of the third band through . Accordingly, the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the first band and the third band are combined.
  • CA carrier aggregation
  • the baseband processor 1400 receives the second signal of the second band through at least one of the third and fourth antennas MB_ANT3 and MB_ANT4, and receives at least one of the fifth and sixth antennas HB_ANT5 and HB_ANT6.
  • the transceiver circuit 1250 may be controlled to receive the third signal of the third band through . Accordingly, the baseband processor 1400 may perform carrier aggregation (CA) through a band in which the second band and the third band are combined.
  • CA carrier aggregation
  • the transceiver circuit 1250 may control to radiate a signal through at least one of the first antennas LB_ANT1 and 1100-1 to the sixth antenna HB_ANT6 and 1100-6.
  • the baseband processor 1400 is configured to communicate with at least one of an adjacent vehicle, a Road Side Unit (RSU), and a base station through the transceiver circuit 1250 .
  • RSU Road Side Unit
  • the baseband processor 1400 may control the transceiver circuit 1250 to receive the first signal of the first band from the first entity through at least one of the first and second antennas LB_ANT1 and LB_ANT2.
  • the baseband processor 1400 may control the transceiver circuit 1250 to receive the second signal of the second band from the second entity through the third and fourth antennas MB_ANT3 and MB_ANT4.
  • the baseband processor 1400 may communicate with a base station as a first entity and perform V2V communication with another vehicle as a second entity.
  • the technical characteristics of the first antennas (LB_ANT1, 1100-1) to the sixth antennas (HB_ANT6, 1100-6) of the slot antenna type according to the present invention are as follows.
  • the first antennas LB_ANT1 and 1100-1 may be configured to radiate a first signal through a first metal pattern M1 and a first slot S1 printed on a first dielectric structure.
  • the first antennas LB_ANT1 and 1100-1 may be configured to be connected to the circuit board PCB through the first feeding unit F1.
  • the second antennas LB_ANT2 and 1100 - 2 may be configured to radiate the second signal through the second metal pattern M2 and the second slot S2 printed on the second dielectric structure.
  • the first signal and the second signal may be signals of the first band corresponding to the low band LB.
  • the first slot S1 corresponding to the first antennas LB_ANT1 and 1100-1 and the second slot S2 corresponding to the second antennas LB_ANT2 and 1100-2 are slots implemented in the ground plane. It can operate similarly to an antenna. This is because the first metal M1 and the second metal M2 are connected to the ground of the circuit board PCB.
  • the first antennas LB_ANT1 and 1100-1 may be configured as a first type antenna 1100a. Accordingly, the first antennas LB_ANT1 and 1100-1 operate in a first band corresponding to the low band LB, and the first part P1 and the first antenna are connected to one side and one end of the circuit board PCB. It may be composed of two parts (P2).
  • the second antennas LB_ANT2 and 1100 - 2 may also be configured as the first type antenna 1100a. Accordingly, the second antennas LB_ANT2 and 1100 - 2 operate in the first band corresponding to the low band LB, and the first portion P1 and the second antenna are connected to the other side and one end of the circuit board PCB. It may be composed of two parts (P2).
  • the lengths of the slots S1 and S2 composed of the first part P1 and the second part P2 are It may be set to 1/2 of a wavelength corresponding to the first band, which is the low band LB.
  • the first antennas LB_ANT1 and 1100-1 and the second antennas LB_ANT2 and 1100-2 are composed of a first part P1 and a second part P2, so that the arrangement design with other antennas in a limited space is easy. It can be easily configured.
  • the first metal pattern M1 formed under the first dielectric structure may be connected to the ground metal pattern of the circuit board PCB.
  • the first power supply unit F1 may be connected to a first signal line SL1 in a dielectric region inside the ground metal pattern of the circuit board PCB.
  • the second metal pattern M2 formed under the second dielectric structure may be connected to the ground metal pattern of the circuit board PCB.
  • the second power supply unit F2 may be connected to the second signal line SL2 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the antenna operating in the middle band (MB) according to the present invention may also be disposed on the circuit board (PCB) together with the low band (LB) antenna.
  • the third antennas MB_ANT3 and 1100 - 3 may be configured to radiate the third signal through the third metal pattern M3 and the third slot S3 printed on the third dielectric structure.
  • the third dielectric structure of the third antennas MB_ANT3 and 1100 - 3 is disposed at one end of the circuit board, and the third antennas MB_ANT3 and 1100 - 3 are connected to the circuit board PCB and the third feeding part. It may be configured to be connected via (F3).
  • the fourth antennas MB_ANT4 and 1100 - 4 may be configured to radiate the fourth signal through the fourth metal pattern M4 and the fourth slot S4 printed on the fourth dielectric structure.
  • the fourth dielectric structure of the fourth antennas MB_ANT4 and 1100 - 4 is disposed at the other end of the circuit board, and the fourth antennas MB_ANT4 and 1100 - 4 are connected to the circuit board PCB and the fourth feeding part. It may be configured to be connected via (F4).
  • the third signal and the fourth signal may be signals of the second band corresponding to the middle band (MB).
  • the third power feeding part F3 may be connected to the third signal line SL3 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the fourth power supply unit F4 may be connected to the fourth signal line SL4 in the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the antenna operating in the high band (HB) according to the present invention may also be disposed on the circuit board (PCB) together with the low band (LB) antenna and/or the middle band (MB).
  • the fifth antennas HB_ANT5 and 1100 - 5 are configured to radiate a fifth signal through the fifth metal pattern M5 and the fifth slot S5 printed on the fifth dielectric structure.
  • the fifth dielectric structure of the fifth antennas HB_ANT5 and 1100 - 5 is disposed at one end of the circuit board PCB and is configured to be connected to the circuit board PCB and the fifth power supply unit F5 . can be
  • the sixth antennas HB_ANT6 and 1100 - 6 may be configured to radiate the sixth signal through the sixth metal pattern M6 and the sixth slot S6 printed on the sixth dielectric structure.
  • the sixth dielectric structure of the sixth antennas HB_ANT6 and 1100 - 6 is disposed at the other end of the circuit board, and the sixth antennas HB_ANT6 and 1100 - 6 are connected to the circuit board PCB and the sixth feeding part. It may be configured to be connected via (F6).
  • the fifth signal and the sixth signal may be signals of the third band corresponding to the high band HB.
  • the third antennas MB_ANT3 and 1100-3 to the sixth antennas HB_ANT6 and 1100-6 may be configured as the second type antenna 1100b. Accordingly, the third antennas MB_ANT3 and 1100 - 3 to the sixth antenna HB_ANT6 and 1100 - 6 may be configured in a straight line to be disposed only in one area of the circuit board PCB.
  • the low-band (LB) antennas such as the first antenna (LB_ANT1, 1100-1) and the second antenna (LB_ANT2, 1100-2) are disposed on both the side surface and the end of the circuit board (PCB) in the first part ( It may be composed of P1) and the second part P2.
  • the fifth metal pattern M5 formed under the fifth dielectric structure of the fifth antennas HB_ANT5 and 1100 - 5 may be connected to the ground metal pattern of the circuit board PCB.
  • the sixth metal pattern M6 formed under the sixth dielectric structure of the sixth antennas HB_ANT6 and 1100 - 6 may be connected to the ground metal pattern of the circuit board PCB.
  • the fifth power feeding unit F5 may be connected to the fifth signal line SL5 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • the sixth power supply unit F6 may be connected to the sixth signal line SL6 of the dielectric region inside the ground metal pattern of the circuit board PCB.
  • a half-wavelength slot antenna having an omni-directional radiation characteristic is implemented by erecting a dielectric structure in the same shape as a wall.
  • the slot antenna of the present invention has a resonance length of a half wavelength required for antenna resonance. Therefore, there is no need to optimize the antenna pattern according to the distance or height of the antenna from the PCB ground or the surrounding components and environment. In addition, since the optimization can be made with only a very small range of tuning using a matching device on the PCB, it is easy to modularize the components.
  • An antenna system having a plurality of slot antennas in this modular form is applicable to a vehicle antenna for GSM/LTE/5G Sub6 communication.
  • FIG. 11 illustrates a block diagram of a wireless communication system to which the methods proposed in the present specification can be applied.
  • a wireless communication system includes a first communication device 910 and/or a second communication device 920 .
  • 'A and/or B' may be interpreted as having the same meaning as 'including at least one of A or B'.
  • the first communication device may represent the base station and the second communication device may represent the terminal (or the first communication device may represent the terminal and the second communication device may represent the base station).
  • Base station is a fixed station (fixed station), Node B, evolved-NodeB (eNB), gNB (Next Generation NodeB), BTS (base transceiver system), access point (AP: Access Point), gNB (general) NB), 5G system, network, AI system, RSU (road side unit), may be replaced by terms such as robot.
  • the terminal may be fixed or have mobility
  • UE User Equipment
  • MS Mobile Station
  • UT user terminal
  • MSS Mobile Subscriber Station
  • SS Subscriber Station
  • AMS Advanced Mobile
  • WT Wireless terminal
  • MTC Machine-Type Communication
  • M2M Machine-to-Machine
  • D2D Device-to-Device
  • vehicle robot
  • AI module may be replaced by terms such as
  • the first communication device and the second communication device include a processor 911,921, a memory 914,924, one or more Tx/Rx radio frequency modules 915,925, Tx processors 912,922, Rx processors 913,923 , including antennas 916 and 926 .
  • the processor implements the functions, processes and/or methods salpinned above. More specifically, in DL (communication from a first communication device to a second communication device), an upper layer packet from the core network is provided to the processor 911 .
  • the processor implements the functions of the L2 layer.
  • the processor provides multiplexing between logical channels and transport channels, allocation of radio resources to the second communication device 920, and is responsible for signaling to the second communication device.
  • a transmit (TX) processor 912 implements various signal processing functions for the L1 layer (ie, the physical layer).
  • the signal processing function facilitates forward error correction (FEC) in the second communication device, and includes coding and interleaving.
  • FEC forward error correction
  • the coded and modulated symbols are divided into parallel streams, each stream mapped to OFDM subcarriers, multiplexed with a reference signal (RS) in the time and/or frequency domain, and using Inverse Fast Fourier Transform (IFFT) are combined together to create a physical channel carrying a stream of time domain OFDMA symbols.
  • RS reference signal
  • IFFT Inverse Fast Fourier Transform
  • the OFDM stream is spatially precoded to generate multiple spatial streams.
  • Each spatial stream may be provided to a different antenna 916 via a separate Tx/Rx module (or transceiver) 915 .
  • Each Tx/Rx module may modulate an RF carrier with a respective spatial stream for transmission.
  • each Tx/Rx module (or transceiver) 925 receives a signal via each antenna 926 of each Tx/Rx module.
  • Each Tx/Rx module recovers information modulated with an RF carrier and provides it to a receive (RX) processor 923 .
  • the RX processor implements the various signal processing functions of layer 1.
  • the RX processor may perform spatial processing on the information to recover any spatial streams destined for the second communication device. If multiple spatial streams are destined for the second communication device, they may be combined into a single OFDMA symbol stream by multiple RX processors.
  • the RX processor uses a Fast Fourier Transform (FFT) to transform the OFDMA symbol stream from the time domain to the frequency domain.
  • the frequency domain signal includes a separate OFDMA symbol stream for each subcarrier of the OFDM signal.
  • the symbols and reference signal on each subcarrier are recovered and demodulated by determining the most probable signal placement points transmitted by the first communication device. These soft decisions may be based on channel estimate values.
  • the soft decisions are decoded and deinterleaved to recover the data and control signal originally transmitted by the first communication device on the physical channel. Corresponding data and control signals are provided to a processor 921 .
  • the UL (second communication device to first communication device) is handled in the first communication device 910 in a manner similar to that described with respect to the receiver function in the second communication device 920 .
  • Each Tx/Rx module 925 receives a signal via a respective antenna 926 .
  • Each Tx/Rx module provides an RF carrier and information to the RX processor 923 .
  • the processor 921 may be associated with a memory 924 that stores program code and data. Memory may be referred to as a computer-readable medium.
  • the radiation pattern of the antenna in the antenna system mounted on the vehicle can be improved in the horizontal direction.
  • the antenna system can be optimized with different antennas in the low band (LB) and other bands, and the antenna system can be arranged in an optimal configuration and performance within the roof frame of the vehicle.
  • LB low band
  • MIMO multiple input/output
  • diversity operations can be implemented in an antenna system of a vehicle using a plurality of antennas in a specific band.
  • the computer-readable medium includes any type of recording device in which data readable by a computer system is stored. Examples of computer-readable media include Hard Disk Drive (HDD), Solid State Disk (SSD), Silicon Disk Drive (SDD), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. There is also a carrier wave (eg, transmission over the Internet) that is implemented in the form of.
  • the computer may include a control unit of the terminal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Selon la présente invention, un système d'antennes chargé dans un véhicule peut comprendre : une carte de circuit imprimé conçue pour avoir de multiples antennes agencées sur cette dernière ; une première antenne conçue pour être connectée à la carte de circuit imprimé par l'intermédiaire d'une première partie d'alimentation électrique afin d'émettre un premier signal à travers une première fente et un premier motif métallique imprimé sur une première structure diélectrique ; et une seconde antenne conçue pour être connectée à la carte de circuit imprimé par l'intermédiaire d'une seconde partie d'alimentation électrique afin d'émettre un second signal à travers une seconde fente et un second motif métallique sur la seconde structure diélectrique.
PCT/KR2019/017062 2019-12-05 2019-12-05 Système d'antennes chargé dans un véhicule WO2021112285A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2019/017062 WO2021112285A1 (fr) 2019-12-05 2019-12-05 Système d'antennes chargé dans un véhicule

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2019/017062 WO2021112285A1 (fr) 2019-12-05 2019-12-05 Système d'antennes chargé dans un véhicule

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WO2021112285A1 true WO2021112285A1 (fr) 2021-06-10

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040004217A (ko) * 2003-11-20 2004-01-13 주식회사 선우커뮤니케이션 무선 랜 듀얼밴드 칩 안테나
KR20080081174A (ko) * 2005-12-20 2008-09-08 모토로라 인코포레이티드 전기적으로 작고 낮은 프로파일 스위칭된 다대역 안테나
JP2010200160A (ja) * 2009-02-26 2010-09-09 Nippon Soken Inc 車載アンテナ装置
KR20160061770A (ko) * 2014-11-24 2016-06-01 엘에스엠트론 주식회사 차량 내장형 안테나 모듈
JP2018129623A (ja) * 2017-02-07 2018-08-16 パナソニック株式会社 モジュール、無線通信装置、および、レーダ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040004217A (ko) * 2003-11-20 2004-01-13 주식회사 선우커뮤니케이션 무선 랜 듀얼밴드 칩 안테나
KR20080081174A (ko) * 2005-12-20 2008-09-08 모토로라 인코포레이티드 전기적으로 작고 낮은 프로파일 스위칭된 다대역 안테나
JP2010200160A (ja) * 2009-02-26 2010-09-09 Nippon Soken Inc 車載アンテナ装置
KR20160061770A (ko) * 2014-11-24 2016-06-01 엘에스엠트론 주식회사 차량 내장형 안테나 모듈
JP2018129623A (ja) * 2017-02-07 2018-08-16 パナソニック株式会社 モジュール、無線通信装置、および、レーダ装置

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