CN105098369A - Slot antenna and terminal - Google Patents
Slot antenna and terminal Download PDFInfo
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- CN105098369A CN105098369A CN201510549072.6A CN201510549072A CN105098369A CN 105098369 A CN105098369 A CN 105098369A CN 201510549072 A CN201510549072 A CN 201510549072A CN 105098369 A CN105098369 A CN 105098369A
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Abstract
The embodiment of the invention discloses a slot antenna, which is applied to a terminal with an all-metal border. The slot antenna comprises a metal bottom plate, a dielectric substrate, a first single-ported open straight slot, a second single-ported open straight slot, a ground lug, a feeding module and a matching circuit, wherein the dielectric substrate is located in a metal middle frame; the first single-ported open circuit straight slot and the second single-ported open circuit straight slot are formed in the upper end of the metal bottom plate; the ground lug is arranged between the single-ported open circuit straight slot and the second single-ported open circuit straight slot; the feeding module and the matching circuit are arranged at the upper end of the dielectric substrate; the open circuit direction of the first single-ported open circuit straight slot is opposite to the open circuit direction of the second single-ported open circuit straight slot, and extends to the edge of the metal bottom plate; a gap is formed between the metal middle frame and the metal bottom plate; the first single-ported open circuit straight slot and the ground lug form a first coupled radiation slot; and the second single-ported open circuit straight slot and the ground lug form a second coupled radiation slot. Meanwhile, the embodiment of the invention further discloses a terminal.
Description
Technical field
The present invention relates to the antenna technology in the communications field, particularly relate to a kind of slot antenna and terminal.
Background technology
Recent years, the terminal on all-metal border, such as mobile phone, due to good looking appearance, structural strength is large, heat conductivility is superior and enjoy the favor of domestic and international cell phone manufacturer.But along with the increase of metal coverage rate ratio, the evolution requirement of the ultra-thin and narrow frame of mobile phone, it is increasing that the multiband bandwidth of antenna for mobile phone realizes difficulty.Traditional antenna for mobile phone design is difficult to the application demand meeting metal edge frame mobile phone, so the mobile phone with metal edge frame becomes a great problem that mobile-phone manufacturers face.
Have the mobile phone of metal edge frame at present to eliminate the impact of metal edge frame on antenna performance, prior art generally adopts following methods: one, cracked by metal edge frame and ground connection load lamped element and eliminate the impact of ring.Two, the metal edge frame of antenna region is changed into plastic material or metal edge frame is divided into multiple part, the part metals frame of segmentation is designed as a part for antenna.
But, adopt above-mentioned prior art to have following drawback: one, to crack and ground connection destroys the continuity of metal edge frame, affect the overall aesthetic of mobile phone, large than required for traditional antenna of the space simultaneously required for Antenna Design; Two, part metals frame participates in radiation as a part for antenna.When hand or other conductors hold the seam on frame, the performance of antenna can sharply worsen, and causes transmitting-receiving bad.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present invention is expected to provide a kind of slot antenna and terminal, can simplify the structure of slot antenna, promotes the performance of slot antenna.
Technical scheme of the present invention is achieved in that
The embodiment of the present invention provides a kind of slot antenna, be applied in the terminal on all-metal border, described slot antenna comprises: metal base plate, medium substrate in metal center, the first single port open circuit vertical masonry joint being arranged on described metal base plate upper end and the second single port open circuit vertical masonry joint, be arranged on ground strip, the power feeding module being arranged on described medium substrate upper end and match circuit between described first single port open circuit vertical masonry joint and described second single port open circuit vertical masonry joint; Wherein,
The open circuit direction of described first single port open circuit vertical masonry joint is relative with the open circuit direction of described second single port open circuit vertical masonry joint, and extend to the edge of described metal base plate, gap is there is between described metal center and described metal base plate, described first single port open circuit vertical masonry joint and described ground strip form the first coupled radiation and stitch, and described second single port open circuit vertical masonry joint and described ground strip form the second coupled radiation and stitch.
In above-mentioned slot antenna, described power feeding module comprises: feed line and feed port, described feed line is made up of the first feed line and the second feed line, described feed port is made up of the first feed port and the second feed port, described first feed port is electrically connected with described first feed line by described match circuit, described second feed port is electrically connected with described second feed line by described match circuit, described first feed line is arranged on described first single port open circuit vertical masonry joint side, and described second feed line is arranged on described second single port open circuit vertical masonry joint side.
In above-mentioned slot antenna, described match circuit comprises: biasing circuit and tuning circuit;
Described biasing circuit, for controlling the switch of the tuning path by described feed port and described feed line;
Described tuning circuit, for realizing the covering of multiband by described feed line.
In above-mentioned slot antenna, described biasing circuit, realizes the break-make of switch for controlling diode.
In above-mentioned slot antenna, described feed port is coaxial line.
In above-mentioned slot antenna, described ground strip is metal derby, open a way vertical masonry joint and described second single port of the thickness of described ground strip and described first single port is opened a way consistency of thickness, described first single port open circuit vertical masonry joint and the described second single port open circuit thickness of vertical masonry joint and the consistency of thickness of described metal base plate of vertical masonry joint.
In above-mentioned slot antenna, the gap between described metal base plate and described metal center is 1mm.
In above-mentioned slot antenna, the open a way length of vertical masonry joint of the described first single port open circuit length of vertical masonry joint and described second single port is inconsistent.
The embodiment of the present invention provides a kind of terminal, and described terminal comprises: the slot antenna described as claim 1-8;
Described slot antenna, goes out the band bandwidth of the multifrequency of antenna for realizing resonance.
In above-mentioned terminal, described terminal also comprises: metal-back and metal center, described metal-back is the metal base plate in described slot antenna.
Embodiments provide a kind of slot antenna and terminal, this slot antenna is applied in the terminal on all-metal border, comprising: metal base plate, medium substrate in metal center, the first single port open circuit vertical masonry joint being arranged on this metal base plate upper end and the second single port open circuit vertical masonry joint, be arranged on ground strip, the power feeding module being arranged on this medium substrate upper end and match circuit between this first single port open circuit vertical masonry joint and this second single port open circuit vertical masonry joint; Wherein, the open circuit direction of the first single port open circuit vertical masonry joint is relative with the open circuit direction of the second single port open circuit vertical masonry joint, and extend to the edge of metal base plate, gap is there is between metal center and metal base plate, first single port open circuit vertical masonry joint and ground strip form the first coupled radiation and stitch, and this second single port open circuit vertical masonry joint and this ground strip form the second coupled radiation and stitch.Adopt above-mentioned slot antenna implementation, owing to just can be completed the design in the gap of slot antenna by straight line seam and ground strip, structure simply and easily realize, because this simplify the structure of slot antenna, and be arranged on the metal base plate of terminal due to slot antenna, instead of design in a metal on frame, the impact on gap antenna performance when thus avoiding user's handheld terminal, and then improve the performance of slot antenna.
Accompanying drawing explanation
Fig. 1 is the hardware configuration signal of the mobile terminal realizing each embodiment of the present invention;
Fig. 2 is the communication system that mobile terminal of the present invention can operate;
The structure vertical view one of a kind of slot antenna that Fig. 3 provides for the embodiment of the present invention;
The structure side view one of a kind of slot antenna that Fig. 4 provides for the embodiment of the present invention;
The structure vertical view two of a kind of slot antenna that Fig. 5 provides for the embodiment of the present invention;
The structural representation of the match circuit of a kind of slot antenna that Fig. 6 provides for the embodiment of the present invention;
The structure side view two of a kind of slot antenna that Fig. 7 provides for the embodiment of the present invention;
The structural representation one of a kind of terminal that Fig. 8 provides for the embodiment of the present invention;
The structural representation two of a kind of terminal that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The mobile terminal realizing each embodiment of the present invention is described referring now to accompanying drawing.In follow-up description, use the suffix of such as " module ", " parts " or " unit " for representing element only in order to be conducive to explanation of the present invention, itself is specific meaning not.Therefore, " module " and " parts " can mixedly use.
It should be noted that, a kind of focus acquisition device that the embodiment of the present invention provides can be terminal, and such as computer or mobile terminal etc. can use the electronic equipment of browser.
Wherein, mobile terminal can be implemented in a variety of manners.Such as, the terminal described in the present invention can comprise the such as mobile terminal of mobile phone, smart phone, notebook computer, digit broadcasting receiver, personal digital assistant (PDA), panel computer (PAD), portable media player (PMP), guider etc. and the fixed terminal of such as digital TV, desktop computer etc.Below, suppose that terminal is mobile terminal.But it will be appreciated by those skilled in the art that except the element except being used in particular for mobile object, structure according to the embodiment of the present invention also can be applied to the terminal of fixed type.
Fig. 1 is the hardware configuration signal of the mobile terminal realizing each embodiment of the present invention.
Mobile terminal 100 can comprise wireless communication unit 110, audio/video (A/V) input unit 120, user input unit 130, sensing cell 140, output unit 150, memory 160, interface unit 170, controller 180 and power subsystem 190 etc.Fig. 1 shows the mobile terminal with various assembly, it should be understood that, does not require to implement all assemblies illustrated.Can alternatively implement more or less assembly.Will be discussed in more detail below the element of mobile terminal.
Wireless communication unit 110 generally includes one or more assembly, and it allows the radio communication between mobile terminal 100 and wireless communication system or network.Such as, wireless communication unit can comprise at least one in broadcast reception module 111, mobile communication module 112, wireless Internet module 113, short range communication module 114 and positional information module 115.
Broadcast reception module 111 via broadcast channel from external broadcasting management server receiving broadcast signal and/or broadcast related information.Broadcast channel can comprise satellite channel and/or terrestrial channel.Broadcast management server can be generate and send the server of broadcast singal and/or broadcast related information or the broadcast singal generated before receiving and/or broadcast related information and send it to the server of terminal.Broadcast singal can comprise TV broadcast singal, radio signals, data broadcasting signal etc.And broadcast singal may further include the broadcast singal combined with TV or radio signals.Broadcast related information also can provide via mobile communications network, and in this case, broadcast related information can be received by mobile communication module 112.Broadcast singal can exist in a variety of manners, such as, it can exist with the form of the electronic service guidebooks (ESG) of the electronic program guides of DMB (DMB) (EPG), digital video broadcast-handheld (DVB-H) etc.Broadcast reception module 111 can by using the broadcast of various types of broadcast system Received signal strength.Especially, broadcast reception module 111 can by using such as multimedia broadcasting-ground (DMB-T), DMB-satellite (DMB-S), digital video broadcasting-hand-held (DVB-H), forward link media (MediaFLO
) the digit broadcasting system receiving digital broadcast of Radio Data System, received terrestrial digital broadcasting integrated service (ISDB-T) etc.Broadcast reception module 111 can be constructed to be applicable to providing the various broadcast system of broadcast singal and above-mentioned digit broadcasting system.The broadcast singal received via broadcast reception module 111 and/or broadcast related information can be stored in memory 160 (or storage medium of other type).
Radio signal is sent at least one in base station (such as, access point, Node B etc.), exterior terminal and server and/or receives radio signals from it by mobile communication module 112.Various types of data that such radio signal can comprise voice call signal, video calling signal or send according to text and/or Multimedia Message and/or receive.
Wireless Internet module 113 supports the Wi-Fi (Wireless Internet Access) of mobile terminal.This module can be inner or be externally couple to terminal.Wi-Fi (Wireless Internet Access) technology involved by this module can comprise WLAN (WLAN) (Wi-Fi), Wibro (WiMAX), Wimax (worldwide interoperability for microwave access), HSDPA (high-speed downlink packet access) etc.
Short range communication module 114 is the modules for supporting junction service.Some examples of short-range communication technology comprise bluetooth
tM, radio-frequency (RF) identification (RFID), Infrared Data Association (IrDA), ultra broadband (UWB), purple honeybee
tMetc..
Positional information module 115 is the modules of positional information for checking or obtain mobile terminal.The typical case of positional information module is global positioning system (GPS) module.According to current technology, GPS module calculates from the range information of three or more satellite and correct time information and for the Information application triangulation calculated, thus calculates three-dimensional current location information according to longitude, latitude and pin-point accuracy.Current, the method for calculating location and temporal information uses three satellites and by the error of the position that uses an other satellite correction calculation to go out and temporal information.In addition, GPS module can carry out computational speed information by Continuous plus current location information in real time.
A/V input unit 120 is for audio reception or vision signal.A/V input unit 120 can comprise camera 121 and microphone 122, and the view data of camera 121 to the static images obtained by image capture apparatus in Video Capture pattern or image capture mode or video processes.Picture frame after process may be displayed on display unit 151.Picture frame after camera 121 processes can be stored in memory 160 (or other storage medium) or via wireless communication unit 110 and send, and can provide two or more cameras 121 according to the structure of mobile terminal.Such acoustic processing can via microphones sound (voice data) in telephone calling model, logging mode, speech recognition mode etc. operational mode, and can be voice data by microphone 122.Audio frequency (voice) data after process can be converted to the formatted output that can be sent to mobile communication base station via mobile communication module 112 when telephone calling model.Microphone 122 can be implemented various types of noise and eliminate (or suppress) algorithm and receiving and sending to eliminate (or suppression) noise or interference that produce in the process of audio signal.
User input unit 130 can generate key input data to control the various operations of mobile terminal according to the order of user's input.User input unit 130 allows user to input various types of information, and keyboard, the young sheet of pot, touch pad (such as, detecting the touch-sensitive assembly of the change of the resistance, pressure, electric capacity etc. that cause owing to being touched), roller, rocking bar etc. can be comprised.Especially, when touch pad is superimposed upon on display unit 151 as a layer, touch-screen can be formed.
Sensing cell 140 detects the current state of mobile terminal 100, (such as, mobile terminal 100 open or close state), the position of mobile terminal 100, user for mobile terminal 100 contact (namely, touch input) presence or absence, the orientation of mobile terminal 100, the acceleration or deceleration of mobile terminal 100 move and direction etc., and generate order or the signal of the operation for controlling mobile terminal 100.Such as, when mobile terminal 100 is embodied as sliding-type mobile phone, sensing cell 140 can sense this sliding-type phone and open or close.In addition, whether whether sensing cell 140 can detect power subsystem 190 provides electric power or interface unit 170 to couple with external device (ED).Sensing cell 140 can comprise proximity transducer 141 and will be described this in conjunction with touch-screen below.
Interface unit 170 is used as at least one external device (ED) and is connected the interface that can pass through with mobile terminal 100.Such as, external device (ED) can comprise wired or wireless head-band earphone port, external power source (or battery charger) port, wired or wireless FPDP, memory card port, for connecting the port, audio frequency I/O (I/O) port, video i/o port, ear port etc. of the device with identification module.Identification module can be that storage uses the various information of mobile terminal 100 for authentication of users and can comprise subscriber identification module (UIM), client identification module (SIM), Universal Subscriber identification module (USIM) etc.In addition, the device (hereinafter referred to " recognition device ") with identification module can take the form of smart card, and therefore, recognition device can be connected with mobile terminal 100 via port or other jockey.Interface unit 170 may be used for receive from external device (ED) input (such as, data message, electric power etc.) and the input received be transferred to the one or more element in mobile terminal 100 or may be used for transmitting data between mobile terminal and external device (ED).
In addition, when mobile terminal 100 is connected with external base, interface unit 170 can be used as to allow by it electric power to be provided to the path of mobile terminal 100 from base or can be used as the path that allows to be transferred to mobile terminal by it from the various command signals of base input.The various command signal inputted from base or electric power can be used as and identify whether mobile terminal is arranged on the signal base exactly.Output unit 150 is constructed to provide output signal (such as, audio signal, vision signal, alarm signal, vibration signal etc.) with vision, audio frequency and/or tactile manner.Output unit 150 can comprise display unit 151, dio Output Modules 152, alarm unit 153 etc.
Display unit 151 may be displayed on the information of process in mobile terminal 100.Such as, when mobile terminal 100 is in telephone calling model, display unit 151 can show with call or other communicate (such as, text messaging, multimedia file are downloaded etc.) be correlated with user interface (UI) or graphic user interface (GUI).When mobile terminal 100 is in video calling pattern or image capture mode, display unit 151 can the image of display capture and/or the image of reception, UI or GUI that video or image and correlation function are shown etc.
Meanwhile, when display unit 151 and touch pad as a layer superposed on one another to form touch-screen time, display unit 151 can be used as input unit and output device.Display unit 151 can comprise at least one in liquid crystal display (LCD), thin-film transistor LCD (TFT-LCD), Organic Light Emitting Diode (OLED) display, flexible display, three-dimensional (3D) display etc.Some in these displays can be constructed to transparence, and to allow user to watch from outside, this can be called transparent display, and typical transparent display can be such as TOLED (transparent organic light emitting diode) display etc.According to the specific execution mode wanted, mobile terminal 100 can comprise two or more display units (or other display unit), such as, mobile terminal can comprise outernal display unit (not shown) and inner display unit (not shown).Touch-screen can be used for detecting touch input pressure and touch input position and touch and inputs area.
When dio Output Modules 152 can be under the isotypes such as call signal receiving mode, call mode, logging mode, speech recognition mode, broadcast reception mode at mobile terminal, voice data convert audio signals that is that wireless communication unit 110 is received or that store in memory 160 and exporting as sound.And dio Output Modules 152 can provide the audio frequency relevant to the specific function that mobile terminal 100 performs to export (such as, call signal receives sound, message sink sound etc.).Dio Output Modules 152 can comprise loud speaker, buzzer etc.
Alarm unit 153 can provide and export that event informed to mobile terminal 100.Typical event can comprise calling reception, message sink, key signals input, touch input etc.Except audio or video exports, alarm unit 153 can provide in a different manner and export with the generation of notification event.Such as, alarm unit 153 can provide output with the form of vibration, when receive calling, message or some other enter communication (incomingcommunication) time, alarm unit 153 can provide sense of touch to export (that is, vibrating) to notify to user.By providing such sense of touch to export, even if when the mobile phone of user is in the pocket of user, user also can identify the generation of various event.Alarm unit 153 also can provide the output of the generation of notification event via display unit 151 or dio Output Modules 152.
Memory 160 software program that can store process and the control operation performed by controller 180 etc., or temporarily can store oneself through exporting the data (such as, telephone directory, message, still image, video etc.) that maybe will export.And, memory 160 can store about when touch be applied to touch-screen time the vibration of various modes that exports and the data of audio signal.
Memory 160 can comprise the storage medium of at least one type, described storage medium comprises flash memory, hard disk, multimedia card, card-type memory (such as, SD or DX memory etc.), random access storage device (RAM), static random-access memory (SRAM), read-only memory (ROM), Electrically Erasable Read Only Memory (EEPROM), programmable read only memory (PROM), magnetic storage, disk, CD etc.And mobile terminal 100 can be connected the memory function of execute store 160 network storage device with by network cooperates.
Controller 180 controls the overall operation of mobile terminal usually.Such as, controller 180 performs the control relevant to voice call, data communication, video calling etc. and process.In addition, controller 180 can comprise the multi-media module 181 for reproducing (or playback) multi-medium data, and multi-media module 181 can be configured in controller 180, or can be configured to be separated with controller 180.Controller 180 can pattern recognition process, is identified as character or image so that input is drawn in the handwriting input performed on the touchscreen or picture.
Power subsystem 190 receives external power or internal power and provides each element of operation and the suitable electric power needed for assembly under the control of controller 180.
Various execution mode described herein can to use such as computer software, the computer-readable medium of hardware or its any combination implements.For hardware implementation, execution mode described herein can by using application-specific IC (ASIC), digital signal processor (DSP), digital signal processing device (DSPD), programmable logic device (PLD), field programmable gate array (FPGA), processor, controller, microcontroller, microprocessor, being designed at least one performed in the electronic unit of function described herein and implementing, in some cases, such execution mode can be implemented in controller 180.For implement software, the execution mode of such as process or function can be implemented with allowing the independent software module performing at least one function or operation.Software code can be implemented by the software application (or program) write with any suitable programming language, and software code can be stored in memory 160 and to be performed by controller 180.
So far, oneself is through the mobile terminal according to its functional description.Below, for the sake of brevity, by the slide type mobile terminal that describes in various types of mobile terminals of such as folded form, board-type, oscillating-type, slide type mobile terminal etc. exemplarily.Therefore, the present invention can be applied to the mobile terminal of any type, and is not limited to slide type mobile terminal.
Mobile terminal 100 as shown in Figure 1 can be constructed to utilize and send the such as wired and wireless communication system of data via frame or grouping and satellite-based communication system operates.
Describe wherein according to the communication system that mobile terminal of the present invention can operate referring now to Fig. 2.
Such communication system can use different air interfaces and/or physical layer.Such as, the air interface used by communication system comprises such as frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA) and universal mobile telecommunications system (UMTS) (especially, Long Term Evolution (LTE)), global system for mobile communications (GSM) etc.As non-limiting example, description below relates to cdma communication system, but such instruction is equally applicable to the system of other type.
With reference to figure 2, cdma wireless communication system can comprise multiple mobile terminal 100, multiple base station (BS) 270, base station controller (BSC) 275 and mobile switching centre (MSC) 280.MSC280 is constructed to form interface with Public Switched Telephony Network (PSTN) 290.MSC280 is also constructed to form interface with the BSC275 that can be couple to BS270 via back haul link.Back haul link can construct according to any one in some interfaces that oneself knows, described interface comprises such as E1/T1, ATM, IP, PPP, frame relay, HDSL, ADSL or xDSL.Will be appreciated that system as shown in Figure 2 can comprise multiple BSC2750.
Each BS270 can serve one or more subregion (or region), by multidirectional antenna or point to specific direction each subregion of antenna cover radially away from BS270.Or each subregion can by two or more antenna covers for diversity reception.Each BS270 can be constructed to support multiple parallel compensate, and each parallel compensate has specific frequency spectrum (such as, 1.25MHz, 5MHz etc.).
Subregion can be called as CDMA Channel with intersecting of parallel compensate.BS270 also can be called as base station transceiver subsystem (BTS) or other equivalent terms.Under these circumstances, term " base station " may be used for broadly representing single BSC275 and at least one BS270.Base station also can be called as " cellular station ".Or each subregion of particular B S270 can be called as multiple cellular station.
As shown in Figure 2, broadcast singal is sent to the mobile terminal 100 at operate within systems by broadcsting transmitter (BT) 295.Broadcast reception module 111 as shown in Figure 1 is arranged on mobile terminal 100 and sentences the broadcast singal receiving and sent by BT295.In fig. 2, show several global positioning system (GPS) satellite 300, satellite 300 helps at least one in the multiple mobile terminal 100 in location.
In fig. 2, depict multiple satellite 300, but understand, the satellite of any number can be utilized to obtain useful locating information.GPS module as the positional information module 115 shown in Fig. 1 is constructed to coordinate to obtain the locating information wanted with satellite 300 usually.Substitute GPS tracking technique or outside GPS tracking technique, can use can other technology of position of tracking mobile terminal.In addition, at least one gps satellite 300 optionally or extraly can process satellite dmb transmission.
As a typical operation of wireless communication system, BS270 receives the reverse link signal from various mobile terminal 100.Mobile terminal 100 participates in call usually, information receiving and transmitting communicates with other type.Each reverse link signal that particular B S270 receives is processed by particular B S270.The data obtained are forwarded to relevant BSC275.BSC provides call Resourse Distribute and comprises the mobile management function of coordination of the soft switching process between BS270.The data received also are routed to MSC280 by BSC275, and it is provided for the extra route service forming interface with PSTN290.Similarly, PSTN290 and MSC280 forms interface, and MSC and BSC275 forms interface, and BSC275 correspondingly control BS270 so that forward link signals is sent to mobile terminal 100.
Based on above-mentioned mobile terminal hardware configuration and communication system, each embodiment of the inventive method is proposed.
Embodiment one
Shown in composition graphs 3 and Fig. 4, the embodiment of the present invention provides a kind of slot antenna 1, be applied in the terminal on all-metal border, this slot antenna 1 can comprise: metal base plate 10, medium substrate 11 in metal center, the first single port open circuit vertical masonry joint 12 being arranged on described metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13, be arranged on ground strip 14, the power feeding module 15 being arranged on described medium substrate 11 upper end and match circuit 16 between described first single port open circuit vertical masonry joint 12 and described second single port open circuit vertical masonry joint 13.Wherein,
The open circuit direction of described first single port open circuit vertical masonry joint 12 is relative with the open circuit direction of described second single port open circuit vertical masonry joint 13, and extend to the edge of described metal base plate 10, gap is there is between described metal center and described metal base plate 10, described first single port open circuit vertical masonry joint 12 forms the first coupled radiation with described ground strip 14 and stitches, and described second single port open circuit vertical masonry joint 13 forms the second coupled radiation with described ground strip 14 and stitches.
It should be noted that, a kind of slot antenna that the embodiment of the present invention provides is applied in terminal, and this terminal is the electronic equipment with metal boundary.
Especially, the plane sizes of metal base plate 10 in embodiments of the present invention, metal center and medium substrate 11 is consistent, and all parallel to each other.
Optionally, the size of above-mentioned metal base plate 10 can be 150mm × 70mm × 5mm, and the thickness of metal center can be 4mm, and what concrete physical dimension can be suitable adjusts according to actual needs, and the embodiment of the present invention is not restricted.
Be understandable that, by above-mentioned physical dimension realize known: terminal use metal substrate 10, due to ultra-thin metal, structural strength is large, and this terminal heat conductivility is superior, and metal sense of touch is good, therefore, this slot antenna also can not take too thick space, can realize ultra-thin design.
Preferably, the first single port open circuit vertical masonry joint 12 in metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13 can be 5mm apart from the distance on the top of metal base plate 10, and the width of the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13 can be 2mm, also can carry out the adjustment of size according to actual needs, the embodiment of the present invention is not restricted.
Be understandable that, because the first single port open circuit vertical masonry joint 12 in metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13 can be 5mm apart from the distance on the top of metal base plate 10, that is the antenna in the slot antenna that provides of the embodiment of the present invention can as much as possible near the upper end of metal base plate 10, therefore, the frame applying the terminal of this slot antenna just can be narrow as much as possible, screen accounting is made to bring up to 87% greatly, thus achieve the design of the terminal of narrower frame, improve visual experience.
In embodiments of the present invention, radiofrequency signal is from the feed-in of feedback point module 15, and through match circuit 16, electromagnetic wave is gone out along the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13 both sides coupled radiation.
Optionally, as shown in Figure 5, described power feeding module 15 comprises: feed line 151 and feed port 152, described feed line 151 is made up of the first feed line 1511 and the second feed line 1512, described feed port 152 is made up of the first feed port 1521 and the second feed port 1522, described first feed port 1521 is electrically connected with described first feed line 1511 by described match circuit 16, described second feed port 1522 is electrically connected with described second feed line 1512 by described match circuit 16, described first feed line 1511 is arranged on described first single port open circuit vertical masonry joint 12 side, described second feed line 1512 is arranged on described second single port open circuit vertical masonry joint 13 side.
Optionally, as shown in Figure 6, described match circuit 16 comprises: biasing circuit 161 and tuning circuit 162.
Described biasing circuit 161, for controlling by the switch of described feed port 152 with the tuning path of described feed line 151.
Described tuning circuit 162, for realizing the covering of multiband by described feed line 151.
It should be noted that, the slot antenna that the embodiment of the present invention provides is stitched to the first coupled radiation by power feeding module 15, the second coupled radiation seam feed, by increasing the number of tuning circuit 162 or regulating adjustable tuning circuit 162, realize the resonance that the first coupled radiation seam and the second coupled radiation are sewn on the different wave length of different frequency range generation, thus the slot antenna of seven frequency ranges can be realized.
Further, in embodiments of the present invention, the band bandwidth of the first coupled radiation seam and the second coupled radiation seam difference resonance low frequency and high frequency, exemplary, first coupled radiation seam resonance goes out the high-frequency band bandwidth of antenna, and the second coupled radiation seam resonance goes out the low frequency band bandwidth of antenna.
Optionally, conventional in embodiment of the present invention low-frequency range is 824-960MHZ; High band is 1690-2690MHZ.
It should be noted that, the first feed port 1521, biasing circuit 161, tuning circuit 162, first feed line 1511 and the first single port open circuit vertical masonry joint 12 form the first branch road, go out the high-frequency band bandwidth of antenna for controlling resonance; Second feed port 1522, biasing circuit 161, tuning circuit 162, second feed line 1512 and the second single port open circuit vertical masonry joint 13 form the second branch road, go out the low frequency band bandwidth of antenna for controlling resonance.
Concrete, the first coupled radiation seam resonance goes out the high-frequency band bandwidth of antenna and the second coupled radiation stitches the realization that resonance goes out the low frequency band bandwidth of antenna, is dependent on the switching function of the biasing circuit 161 in match circuit 16.
In embodiments of the present invention, realized the switching of above-mentioned first branch road and above-mentioned second branch road by biasing circuit, i.e. feed line 151 and the switching between the first feed port 1521 and the second feed port 1522.
Optionally, described biasing circuit 161, realizes the break-make of switch for controlling diode.
Concrete, the embodiment of the present invention can provide LTE/WWAN seven communication bandwidth of frequency band, adopts Reconfiguration Technologies and seam antenna form, utilizes diode (biasing circuit) to switch the covering realizing low-and high-frequency.
It should be noted that, the biasing circuit in the embodiment of the present invention also can select other implementations of the prior art, and the embodiment of the present invention is not restricted.
Optionally, described feed port 152 is coaxial line.
Optionally, described ground strip 14 is metal derby, open a way vertical masonry joint 12 and described second single port of the thickness of described ground strip 14 and described first single port is opened a way consistency of thickness, described first single port open circuit vertical masonry joint 12 and the described second single port open circuit thickness of vertical masonry joint 13 and the consistency of thickness of described metal base plate 10 of vertical masonry joint 13.
Optionally, the gap between described metal base plate 10 and described metal center is 1mm.
It should be noted that, in order to reduce coupling effect, simultaneously also in order to meet the process requirements of terminal production firm, the gap between metal base plate 10 and metal center is 1mm.
Further, as shown in Figure 7, in embodiments of the present invention, directly can be electrically connected between metal base plate 10 with metal center, but in order to realize the single port open circuit of the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13, avoid short circuit, therefore, as shown in Figure 7, except the part between the first single port open circuit vertical masonry joint 12 of slot antenna and the second single port open circuit vertical masonry joint 13, gap between metal base plate 10 and metal center, is still.
Optionally, the open a way length of vertical masonry joint 13 of the described first single port open circuit length of vertical masonry joint 12 and described second single port is inconsistent.
It should be noted that, learnt by emulation, use the slot antenna of said structure and size, in the frequency range 824-960MHZ and 1690-2690MHZ of communications applications needs, the reflection coefficient of antenna is all below-6dB, and standing-wave ratio is 3:1, and radiation efficiency reaches more than 40%, therefore, the designing requirement of antenna is met.
Be understandable that, the structure of the slot antenna that the embodiment of the present invention provides is simple, easy to process, is convenient to processing and produces.
A kind of slot antenna that the embodiment of the present invention provides, this slot antenna is applied in the terminal on all-metal border, comprising: metal base plate, medium substrate in metal center, the first single port open circuit vertical masonry joint being arranged on this metal base plate upper end and the second single port open circuit vertical masonry joint, be arranged on ground strip, the power feeding module being arranged on this medium substrate upper end and match circuit between this first single port open circuit vertical masonry joint and this second single port open circuit vertical masonry joint; Wherein, the open circuit direction of the first single port open circuit vertical masonry joint is relative with the open circuit direction of the second single port open circuit vertical masonry joint, and extend to the edge of metal base plate, gap is there is between metal center and metal base plate, first single port open circuit vertical masonry joint and ground strip form the first coupled radiation and stitch, and this second single port open circuit vertical masonry joint and this ground strip form the second coupled radiation and stitch.Adopt above-mentioned slot antenna implementation, owing to just can be completed the design in the gap of slot antenna by straight line seam and ground strip, structure simply and easily realize, because this simplify the structure of slot antenna, and be arranged on the metal base plate of terminal due to slot antenna, instead of design in a metal on frame, the impact on gap antenna performance when thus avoiding user's handheld terminal, and then improve the performance of slot antenna.
Embodiment two
As shown in Figure 8, the embodiment of the present invention provides a kind of terminal 2, and this terminal 2 comprises: as the slot antenna 1 described in embodiment one.
Described slot antenna 1, goes out the band bandwidth of the multifrequency of antenna for realizing resonance.
Further, shown in composition graphs 3 and Fig. 4, slot antenna 1 can comprise: metal base plate 10, medium substrate 11 in metal center, the first single port open circuit vertical masonry joint 12 being arranged on described metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13, be arranged on ground strip 14, the power feeding module 15 being arranged on described medium substrate 11 upper end and match circuit 16 between described first single port open circuit vertical masonry joint 12 and described second single port open circuit vertical masonry joint 13.Wherein, the open circuit direction of described first single port open circuit vertical masonry joint 12 is relative with the open circuit direction of described second single port open circuit vertical masonry joint 13, and extend to the edge of described metal base plate 10, gap is there is between described metal center and described metal base plate 10, described first single port open circuit vertical masonry joint 12 forms the first coupled radiation with described ground strip 14 and stitches, and described second single port open circuit vertical masonry joint 13 forms the second coupled radiation with described ground strip 14 and stitches.
Especially, the plane sizes of metal base plate 10 in embodiments of the present invention, metal center and medium substrate 11 is consistent, and all parallel to each other.
Optionally, the size of above-mentioned metal base plate 10 can be 150mm × 70mm × 5mm, and the thickness of metal center can be 4mm, and what concrete physical dimension can be suitable adjusts according to actual needs, and the embodiment of the present invention is not restricted.
Be understandable that, by above-mentioned physical dimension realize known: terminal use metal substrate 10, due to ultra-thin metal, structural strength is large, and this terminal heat conductivility is superior, and metal sense of touch is good, therefore, this slot antenna also can not take too thick space, can realize ultra-thin design.
Preferably, the first single port open circuit vertical masonry joint 12 in metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13 can be 5mm apart from the distance on the top of metal base plate 10, and the width of the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13 can be 2mm, also can carry out the adjustment of size according to actual needs, the embodiment of the present invention is not restricted.
Be understandable that, because the first single port open circuit vertical masonry joint 12 in metal base plate 10 upper end and the second single port open circuit vertical masonry joint 13 can be 5mm apart from the distance on the top of metal base plate 10, that is the antenna in the slot antenna that provides of the embodiment of the present invention can as much as possible near the upper end of metal base plate 10, therefore, the frame applying the terminal of this slot antenna just can be narrow as much as possible, screen accounting is made to bring up to 87% greatly, thus achieve the design of the terminal of narrower frame, improve visual experience.
In embodiments of the present invention, radiofrequency signal is from the feed-in of feedback point module 15, and through match circuit 16, electromagnetic wave is gone out along the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13 both sides coupled radiation.
Concrete, match circuit 16 also comprises biasing circuit 161 and tuning circuit 162.
It should be noted that, the slot antenna that the embodiment of the present invention provides is stitched to the first coupled radiation by power feeding module 15, the second coupled radiation seam feed, by increasing the number of tuning circuit 162 or regulating adjustable tuning circuit 162, realize the resonance that the first coupled radiation seam and the second coupled radiation are sewn on the different wave length of different frequency range generation, thus the slot antenna of seven frequency ranges can be realized.
Optionally, as shown in Figure 9, described terminal 2 also comprises: metal-back 21 and metal center 22, described metal-back 21 is the metal base plate 10 in described slot antenna.
Further, the structure of the slot antenna 1 of the terminal 2 provided in the embodiment of the present invention can also be as shown in Figure 7, can directly be electrically connected between metal base plate 10 with metal center, but in order to realize the single port open circuit of the first single port open circuit vertical masonry joint 12 and the second single port open circuit vertical masonry joint 13, avoid short circuit, therefore, as shown in Figure 7, except the part between the first single port open circuit vertical masonry joint 12 of slot antenna and the second single port open circuit vertical masonry joint 13, between metal base plate 10 and metal center, be still gap.
The present invention is a kind of terminal that embodiment provides, be provided with slot antenna in terminal, this slot antenna comprises: metal base plate, medium substrate in metal center, the first single port open circuit vertical masonry joint being arranged on this metal base plate upper end and the second single port open circuit vertical masonry joint, be arranged on ground strip, the power feeding module being arranged on this medium substrate upper end and match circuit between this first single port open circuit vertical masonry joint and this second single port open circuit vertical masonry joint; Wherein, the open circuit direction of the first single port open circuit vertical masonry joint is relative with the open circuit direction of the second single port open circuit vertical masonry joint, and extend to the edge of metal base plate, gap is there is between metal center and metal base plate, first single port open circuit vertical masonry joint and ground strip form the first coupled radiation and stitch, and this second single port open circuit vertical masonry joint and this ground strip form the second coupled radiation and stitch.Adopt above-mentioned slot antenna implementation, owing to just can be completed the design in the gap of slot antenna by straight line seam and ground strip, structure simply and easily realize, because this simplify the structure of slot antenna, and be arranged on the metal base plate of terminal due to slot antenna, instead of design in a metal on frame, the impact on gap antenna performance when thus avoiding user's handheld terminal, and then improve the performance of slot antenna.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of hardware embodiment, software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. a slot antenna, be applied in the terminal on all-metal border, it is characterized in that, described slot antenna comprises: metal base plate, medium substrate in metal center, the first single port open circuit vertical masonry joint being arranged on described metal base plate upper end and the second single port open circuit vertical masonry joint, be arranged on ground strip, the power feeding module being arranged on described medium substrate upper end and match circuit between described first single port open circuit vertical masonry joint and described second single port open circuit vertical masonry joint; Wherein,
The open circuit direction of described first single port open circuit vertical masonry joint is relative with the open circuit direction of described second single port open circuit vertical masonry joint, and extend to the edge of described metal base plate, gap is there is between described metal center and described metal base plate, described first single port open circuit vertical masonry joint and described ground strip form the first coupled radiation and stitch, and described second single port open circuit vertical masonry joint and described ground strip form the second coupled radiation and stitch.
2. slot antenna according to claim 1, it is characterized in that, described power feeding module comprises: feed line and feed port, described feed line is made up of the first feed line and the second feed line, described feed port is made up of the first feed port and the second feed port, described first feed port is electrically connected with described first feed line by described match circuit, described second feed port is electrically connected with described second feed line by described match circuit, described first feed line is arranged on described first single port open circuit vertical masonry joint side, described second feed line is arranged on described second single port open circuit vertical masonry joint side.
3. slot antenna according to claim 2, is characterized in that, described match circuit comprises: biasing circuit and tuning circuit;
Described biasing circuit, for controlling the switch of the tuning path by described feed port and described feed line;
Described tuning circuit, for realizing the covering of multiband by described feed line.
4. slot antenna according to claim 3, is characterized in that, described biasing circuit, realizes the break-make of switch for controlling diode.
5. the slot antenna according to Claims 2 or 3, is characterized in that, described feed port is coaxial line.
6. slot antenna according to claim 1, it is characterized in that, described ground strip is metal derby, open a way vertical masonry joint and described second single port of the thickness of described ground strip and described first single port is opened a way consistency of thickness, described first single port open circuit vertical masonry joint and the described second single port open circuit thickness of vertical masonry joint and the consistency of thickness of described metal base plate of vertical masonry joint.
7. slot antenna according to claim 1, is characterized in that, the gap between described metal base plate and described metal center is 1mm.
8. slot antenna according to claim 1, is characterized in that, the open a way length of vertical masonry joint of the described first single port open circuit length of vertical masonry joint and described second single port is inconsistent.
9. a terminal, is characterized in that, described terminal comprises: the slot antenna described as claim 1-8;
Described slot antenna, goes out the band bandwidth of the multifrequency of antenna for realizing resonance.
10. terminal according to claim 9, is characterized in that, described terminal also comprises: metal-back and metal center, described metal-back is the metal base plate in described slot antenna.
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