WO2024041138A1 - Antenna module, positioning system and electronic device - Google Patents

Antenna module, positioning system and electronic device Download PDF

Info

Publication number
WO2024041138A1
WO2024041138A1 PCT/CN2023/101304 CN2023101304W WO2024041138A1 WO 2024041138 A1 WO2024041138 A1 WO 2024041138A1 CN 2023101304 W CN2023101304 W CN 2023101304W WO 2024041138 A1 WO2024041138 A1 WO 2024041138A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna module
radiation patch
feed point
ground
module according
Prior art date
Application number
PCT/CN2023/101304
Other languages
French (fr)
Chinese (zh)
Inventor
雍征东
Original Assignee
Oppo广东移动通信有限公司
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 Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2024041138A1 publication Critical patent/WO2024041138A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems

Definitions

  • This application relates to the field of radio frequency technology, and in particular to an antenna module, positioning system and electronic equipment.
  • antennas in electronic devices can implement more and more functions, and the types of antennas in electronic devices have become more diverse, including UWB antennas, Bluetooth antennas, and wireless LAN antennas.
  • some antennas are omnidirectional antennas, and omnidirectional antennas have high requirements on the roundness of the pattern.
  • the pattern of existing antennas can no longer meet the needs of users.
  • an antenna module a positioning system and an electronic device capable of improving a pattern are provided.
  • an antenna module including:
  • a dielectric substrate having a first side and a second side arranged oppositely;
  • a ground plate is provided on the first surface of the dielectric substrate
  • a radiation patch is provided on the second surface of the dielectric substrate.
  • the radiation patch is provided with a feed point and a plurality of ground points.
  • the plurality of ground points are respectively provided in the first direction of the feed point. both sides of;
  • a plurality of ground structures penetrate the dielectric substrate to connect the ground plate and the corresponding ground point.
  • this application provides a positioning system, including:
  • At least one of the antenna modules is the antenna module as described above, and the three antenna modules are not arranged in a collinear manner;
  • three of the antenna modules are used to communicate with the device to be positioned to determine the location of the device to be positioned.
  • the present application provides an electronic device, including the above-mentioned antenna module or the above-mentioned positioning system.
  • Figure 1 is a schematic top view of an antenna module according to an embodiment
  • FIG. 2 is a schematic cross-sectional view of the antenna module according to the embodiment of Figure 1;
  • Figure 3 is a second schematic top view of a radiation patch according to an embodiment
  • Figure 4 is a third schematic top view of a radiation patch according to an embodiment
  • Figure 5 is the fourth schematic top view of a radiation patch according to an embodiment
  • Figure 6 is a schematic diagram of adjustable parameters of a radiation patch according to an embodiment
  • Figure 7 shows the surface current distribution of the antenna module in the embodiment of Figure 5 when it operates in the fundamental mode
  • Figure 8 is a pattern diagram of multiple frequencies of an antenna module that does not adopt the technical solution of this embodiment
  • Figure 9 is a pattern diagram of multiple frequencies using the antenna module of the embodiment of Figure 5;
  • Figure 10 is a schematic structural diagram of a positioning system according to an embodiment
  • Figure 11 shows the PDOA curves at multiple frequencies of the antenna module that does not adopt the technical solution of this embodiment
  • Figure 12 is a PDOA curve at multiple frequencies using the antenna module of the embodiment of Figure 5;
  • Figure 13 is one of the PDOA curves under the spacing between multiple antenna modules according to an embodiment
  • Figure 14 is the second PDOA curve under the spacing between multiple antenna modules according to an embodiment
  • Figure 15 is a second structural schematic diagram of a positioning system according to an embodiment
  • Figure 16 is a third structural schematic diagram of a positioning system according to an embodiment
  • Figure 17 is a fourth structural schematic diagram of a positioning system according to an embodiment.
  • first, second, etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element.
  • a first direction may be referred to as a second direction, and similarly, the second direction may be referred to as a first direction, without departing from the scope of the present application.
  • the first direction and the second direction are both directions, but they are not the same direction.
  • first and second are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • plural means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • severeal means at least one, such as one, two, etc., unless otherwise expressly and specifically limited.
  • An embodiment of the present application provides an antenna module.
  • the antenna module of this embodiment is used in a radio frequency system.
  • the radio frequency system is used to support the communication function of electronic equipment. It can be, but is not limited to, various personal computers, laptops, smartphones, tablets, Internet of Things devices and portable wearable devices.
  • the Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart vehicle equipment, smart cars, etc.
  • Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc.
  • the electronic device may include a housing assembly and a radio frequency system integrated with an antenna module.
  • the housing assembly may include a middle frame and a back cover.
  • the middle frame may be a frame structure with a through hole, and the back cover is used to form the outer outline of the electronic device.
  • the back cover may be a non-metal back cover, such as a plastic back cover, a ceramic back cover, a 3D glass back cover, etc.
  • the controller can control the operation of electronic equipment, etc.
  • Figure 1 is a schematic top view of an antenna module according to an embodiment.
  • Figure 2 is a schematic cross-sectional view of the antenna module according to the embodiment of Figure 1.
  • the antenna module includes a dielectric substrate, a ground plate, Radiating patches and multiple ground structures.
  • the dielectric substrate has a first surface and a second surface arranged oppositely.
  • the second side can be understood as the side facing the back cover of the electronic device after the antenna module is assembled into the electronic device.
  • the first side is the side facing the display screen of the electronic device.
  • the dielectric substrate may include a plurality of dielectric layers stacked on each other, and the dielectric layer may be, for example, a prepreg (PP) layer.
  • a metal layer or a transmission tape line can be placed between each two prepreg layers to achieve signal transmission.
  • the metal layer may be a copper layer, a tin layer, a lead-tin alloy layer, a tin-copper alloy layer, or the like.
  • the ground plate is provided on the first surface of the dielectric substrate.
  • the ground plate is made of a good conductor material, such as copper.
  • the radiation patch is disposed on the second surface of the dielectric substrate.
  • Radiation patches also use good conductor materials, such as metal materials, alloy materials, conductive silicone materials, graphite materials, indium tin oxide (ITO), etc., or materials with high dielectric constants, such as High dielectric constant glass, plastic, ceramics, etc.
  • Radiation patches can be made by flexible circuit board (Flexible Printed Circuit, FPC), laser direct structuring (LDS), liquid crystal polymer/polymer (LCP), polyimide (Modified PI, MPI) ) and other forms, which are not limited in this embodiment.
  • the shape of the radiation patch may be square or rectangular, or may be other possible shapes, such as triangle, trapezoid, or ellipse, which are not limited in this embodiment.
  • the size of the radiation patch can be determined based on the communication frequency. For example, if the radiation patch is a square, the side length is 0.4 ⁇ 0.5 ⁇ . Among them, ⁇ is the wavelength corresponding to the center frequency.
  • the radiation patch is provided with a feed point and multiple ground points, and the multiple ground points are spaced apart from each other.
  • the feed point refers to the point where the radiation patch is used to connect to the feed structure
  • the ground point refers to the point where the radiation patch is used to connect to the ground structure.
  • a plurality of the ground points are respectively provided on both sides of the feed point in the first direction, that is, at least one ground point is provided on each side of the feed point in the first direction.
  • the radiation patch in Figure 1 as being provided with two grounding points, one grounding point is provided on the upper side and the lower side of the feed point respectively.
  • the ground structure penetrates the dielectric substrate to connect the ground plate and the corresponding ground point.
  • ground structures are respectively arranged in one-to-one correspondence with multiple ground points.
  • One end of the ground structure is connected to the corresponding ground point, and the other end of the ground structure is connected to the ground plate.
  • the grounding structure may be a metallized via hole, which may be formed by electroplating a layer of copper on the hole wall of the dielectric substrate.
  • the current path and direction in the antenna module are determined by the positional relationship between the ground point and the feed point. Therefore, when the feed point of this embodiment feeds a signal to the radiation patch, since multiple ground points are grounded at the same time, the multiple ground points will form their own current paths, thereby jointly forming the surface current distribution of the radiation patch.
  • any current can be decomposed into horizontal components and vertical components that are perpendicular to each other.
  • the vertical component is defined as the component along the first direction
  • the horizontal component is defined as the component along the second direction
  • the second direction is perpendicular to the first direction. Then, the value and sign of the vertical component of the current corresponding to different ground points will be different.
  • grounding points in the embodiment shown in FIG. 1 , only two grounding points are shown, but in other embodiments, 4, 6, etc. grounding points can also be provided to achieve better control of the surface current. Fine adjustment is not limited in this embodiment.
  • the embodiment of the radiation patch provided with two grounding points in Figure 1 as an example, according to the positional relationship between the grounding point and the feed point, and the current will flow from the high voltage point to the low voltage point.
  • the mechanism shows that if the direction of the vertical component of the current corresponding to the ground point located below the feed point is positive, then the direction of the vertical component of the current corresponding to the ground point located below the feed point will be negative.
  • the vertical components of the current can be made to cancel each other in the radiation far field, so that the horizontal component accounts for the vast majority of the radiation contribution, thereby suppressing the radiation of the radiation patch in the higher-order mode and the longitudinal fundamental mode, and exciting the radiation patch in the radiation far field.
  • the radiation of the transverse fundamental mode optimizes the roundness of the antenna module’s pattern. Among them, the greater the roundness, the better the omnidirectional coverage ability of the antenna module on the plane; the smaller the roundness, the worse the omnidirectional coverage ability of the antenna module on the plane. For omnidirectional antennas, when the circularity of the pattern is small, the antenna module will have a performance gap at low gain, affecting the user experience.
  • the phase center can be understood as the equivalent phase surface of the electromagnetic wave that is approximately a spherical surface after it leaves the antenna module at a certain distance, and the center of the spherical surface is the equivalent phase center of the antenna module. That is, the antenna phase center can be understood as a theoretical space point.
  • the flow direction of the surface current of the radiation patch can be changed, so that the surface currents at least partially cancel each other in the second direction, thereby improving the surface current along the third direction.
  • the proportion of the current component in one direction ie, the horizontal component improves the roundness of the horizontal plane pattern and improves the stability of the phase center of the antenna module.
  • the antenna module further includes a feed structure.
  • the feed structure is connected to the feed point, runs through the dielectric substrate and the ground plate respectively, and is electrically isolated from the ground plate.
  • the feed structure is used to feed the feed point of the radiation patch, thereby generating current on the surface of the radiation patch.
  • the feed structure connects the feed point of the radiation patch to the radio frequency port of the radio frequency chip, and feeds the radiation patch by inputting the radio frequency signal of the radio frequency chip.
  • Figure 3 is a second schematic top view of a radiation patch according to an embodiment.
  • the radiation patch has an axially symmetrical structure, and the feed point is located at the center of the axially symmetrical structure.
  • the feed point is located at the center of the axially symmetrical structure.
  • On the symmetry axis at least one grounding point is provided on both sides of the symmetry axis.
  • the position of the grounding point remains unchanged, in this embodiment, by locating the feed point on the symmetry axis, the surface currents on both sides of the symmetry axis can be balanced.
  • the vertical components of the surface current on both sides of the symmetry axis can be made to cancel each other out as much as possible in the radiation far field, thereby increasing the proportion of the horizontal component in the total current, thereby better improving the roundness of the antenna module's pattern.
  • the plurality of grounding points are arranged axially symmetrically with respect to the symmetry axis of the radiation patch. That is to say, the number of ground points on both sides of the symmetry axis is the same and the locations are corresponding.
  • the plurality of ground structures are arranged axially symmetrically about the symmetry axis of the radiation patch. Specifically, when the feed point is set on the axis of symmetry, multiple grounding points are arranged in an axially symmetrical manner, so that the surface current can also be arranged axially symmetrically about the symmetry axis, so that the vertical component of the surface current can be completely offset. That is to say, when the antenna module transmits and receives signals, it is only excited by the horizontal component of the current, thereby greatly improving the circularity of the pattern.
  • a plurality of the ground points are provided on the same side of the feed point in a second direction, and the second direction is perpendicular to the first direction.
  • a plurality of grounding points are arranged in the edge area of the first side of the radiator, and the feed point is spaced apart from the edge area.
  • the edge area can be understood as a rectangular area close to the first side.
  • the antenna module of this embodiment forms a Planar Inverted F-shaped Antenna (PIFA) module.
  • PIFA Planar Inverted F-shaped Antenna
  • the planar inverted F-shaped antenna module has a small size and simple structure, so it can be well adapted to portable electronic devices such as mobile phones.
  • the resonant frequency of the antenna module can be adjusted by adjusting the size of the radiation patch of the planar inverted F-shaped antenna module, the height of the radiation metal piece, etc. Therefore, the above parameters can be adjusted according to the usage scenario, and this embodiment does not limit the specific values of the above parameters.
  • Figure 4 is a third schematic top view of a radiation patch according to an embodiment.
  • the number of ground points is two, and the distance between each ground point and the feed point is There is a gap in between.
  • the gap can also add inductors and capacitors to effectively adjust the resonance characteristics of the radiation patch, broaden the bandwidth to a certain extent, and thereby improve the communication quality of the antenna module.
  • the gap can also adjust the current path on the radiation patch to obtain the required current distribution.
  • the required surface current distribution can be obtained without setting too many grounding points, thereby effectively reducing the size of the radiation patch.
  • the shape of the gap may be rectangular, square, U-shaped, circular, oval, etc.
  • the specific shape and specific position are set according to actual needs and are not limited in this embodiment. It can be understood that in some embodiments, if the impedance of the antenna module when no gap is provided can meet the impedance matching and bandwidth requirements, the gap may not be provided in the radiation patch.
  • the two slits are arranged axially symmetrically with respect to the symmetry axis of the radiation patch.
  • the surface current can also be set up axially symmetrically, so that the surface current The vertical components of are completely canceled out. That is to say, when the antenna module transmits and receives signals, it is only excited by the horizontal component of the current, thereby greatly improving the circularity of the pattern.
  • the two grounding points are located on the first side of the radiation patch, and the gap extends from the first side to the middle of the radiation patch along the first direction. .
  • the flow direction of the surface current can be guided, thereby increasing the proportion of the horizontal component in the current.
  • the proportion of the horizontal component in the current can be increased to 55%.
  • the extension direction of the slot is the first direction, since the first direction is the same as the direction of the horizontal component, the proportion of the horizontal component in the current can be further increased to 60%, thereby further improving the communication quality of the antenna module.
  • the radiation patch further includes a second side disposed opposite to the first side in the first direction, between the feed point and the first side
  • the distance between is less than the distance between the feed point and the second side distance between.
  • FIG. 5 is a fourth schematic top view of a radiation patch according to an embodiment.
  • the radiation patch is further provided with an opening, and the opening extends from the first side to the The feed point connects the two slits in a second direction, and the second direction is perpendicular to the first direction.
  • the impedance characteristics of the antenna module can be further adjusted by changing the size of the opening in the first direction and/or the second direction, thereby achieving impedance matching of the antenna module.
  • the resonance characteristics and impedance matching characteristics of the antenna module can be flexibly adjusted, so that the antenna module can be adapted to different usage scenarios.
  • FIG. 6 is a schematic diagram of adjustable parameters of a radiation patch according to an embodiment.
  • the length Lpatch of the radiation patch and the width Wpatch of the radiation patch can determine the resonant frequency of the antenna module.
  • the length of the slot Lslot, the width of the slot Wslot, the width of the opening Wfeed and the depth of the opening Dfeed will all affect the antenna matching and can adjust the bandwidth of the antenna module to a certain extent.
  • the thickness H of the dielectric substrate has an impact on the bandwidth and resonant frequency of the antenna module.
  • FIG. 7 shows the surface current distribution of the antenna module of the embodiment of FIG. 5 when operating in the fundamental mode.
  • the thickness of the arrow represents the relative strength of the current. Among them, the position closer to the feed point and the ground point has a smaller impedance and the stronger the current. Correspondingly, the position farther away from the feed point and the ground point has a larger impedance and the weaker the current.
  • the vertical component of the current above the symmetry axis has the same amplitude and opposite direction as the vertical component of the current below the symmetry axis. Therefore, the final current can be made to include only the horizontal component by canceling each other out of the vertical components of the current.
  • Figure 8 is a pattern of multiple frequencies of an antenna module that does not adopt the technical solution of this embodiment. That is, the frequencies of (a), (b) and (c) of Figure 8 are different from each other.
  • FIG. 9 is a pattern of multiple frequencies using the antenna module of the embodiment of FIG. 5 , that is, the frequencies of (a), (b) and (c) of FIG. 9 are different from each other.
  • the frequency span is 300MHz
  • the multiple directional patterns of the antenna module of this embodiment are relatively close, while the differences between the multiple directional patterns in Figure 8 are relatively small. big. It can be seen from this that the antenna module of this embodiment has a more stable pattern.
  • FIG. 10 is a schematic structural diagram of a positioning system according to an embodiment.
  • the positioning system includes three antenna modules. Wherein, at least one of the antenna modules is the above-mentioned antenna module, and the three antenna modules are not arranged in a collinear manner.
  • the three antenna modules are used to communicate with the device to be positioned to determine the location of the device to be positioned. Specifically, since the antenna module has better circularity of the pattern, the positioning system of this embodiment can have higher detection accuracy.
  • the positioning system may be an Ultra WideBand (UWB) wireless communication technology positioning system.
  • UWB Ultra WideBand
  • UWB is a short-distance wireless communication method. Its transmission distance is usually within 10m, using bandwidth above 1GHz. UWB does not use carrier waves, but uses nanosecond to picosecond non-sinusoidal narrow pulses to transmit data. Therefore, it occupies a wide spectrum range and is suitable for high-speed, short-range wireless personal communications.
  • FCC stipulates that the operating frequency band of UWB ranges from 3.1GHz to 10.6GHz, and the minimum operating bandwidth is 500MHz.
  • the current mainstream UWB frequency band center frequencies are 6.5GHz and 8GHz.
  • the process of UWB location recognition can be divided into: signal reception, data storage and interpretation.
  • the positioning system can obtain the UWB signal emitted by the device to be positioned. After receiving the UWB signal of the device to be positioned, the positioning system must perform signal processing and then obtain the distance and angle information of the device to be positioned, thereby identifying The relative spatial position of the device to be positioned relative to the positioning system. It can be understood that the positioning system can achieve the Phase-Difference-of-Arrival (PDOA) based on the signal by sensing the arrival direction of the transmitting node signal through certain hardware devices and calculating the relative position between the receiving node and the anchor node. Orientation or angle, and then use triangulation or other methods to calculate the location of the unknown node.
  • PDOA Phase-Difference-of-Arrival
  • FIG. 11 shows the PDOA curves at multiple frequencies of the antenna module that does not adopt the technical solution of this embodiment
  • FIG. 12 shows the PDOA curves of the antenna module that adopts the embodiment of FIG. 5 at multiple frequencies.
  • the horizontal axis of the graph is the PDOA value and the vertical axis is the azimuth angle.
  • Each figure includes a PDOA curve cluster.
  • the PDOA curve cluster includes multiple PDOA curves.
  • Each PDOA curve corresponds to a pitch angle.
  • the PDOA curve can be obtained.
  • the difference between the PDOA curves of different frequencies is smaller, that is, the convergence of the PDOA curve is better, which can verify the implementation of the present application.
  • the antenna module of the example has better PDOA performance.
  • the slope of the PDOA curve using the antenna module in the embodiment of Figure 5 is better, thereby improving the angle measurement accuracy of the positioning system.
  • formula (2) can be obtained. According to formula (2), it can be seen that increasing d/ ⁇ can improve the angle measurement accuracy of the positioning system.
  • Figure 13 is one of the PDOA curves under the spacing of multiple antenna modules in an embodiment
  • the horizontal axis of the graph is the azimuth angle
  • the vertical axis is the PDOA value.
  • the antenna module spacing refers to the distance between the centers of two adjacent antenna modules, such as the distance between the center of antenna module 1 and the center of antenna module 2, or the distance between the center of antenna module 1 and the antenna module The distance between the centers of 3.
  • Figure 13 it can be seen that if the distance d between antenna modules is reduced, the slope of the PDOA curve will decrease and the angle measurement accuracy will decrease.
  • Figure 14 it can be seen that if the distance d between antenna modules is increased to exceed 1/2 wavelength, phase ambiguity will occur, resulting in reduced angle measurement accuracy. Therefore, the multiple antenna modules in the positioning system should choose an appropriate spacing d, for example, less than or equal to 0.5 wavelength, so that the multiple antennas in the positioning system are compactly arranged and the positioning accuracy is high.
  • the three antenna modules in the antenna system can be arranged in a triangle.
  • the antenna module 1 and the antenna module 2 are aligned in the vertical direction to form a first antenna group, and the first antenna group is used to test the angle difference in the vertical direction.
  • Antenna module 1 and antenna module 3 are aligned in the horizontal direction to form a second antenna group.
  • the second antenna group is used to test the angle difference in the horizontal direction.
  • the installation direction of the three antenna modules can be determined according to the actual usage scenario, for example, it can be any one of Figure 15, Figure 16, and Figure 17. It can be understood that the arrangement directions of the above three drawings are only for illustrative purposes and are not used to limit the protection scope of this embodiment.
  • An embodiment of the present application also provides an electronic device, including the above-mentioned antenna module or the above-mentioned positioning system. Based on the above antenna module or positioning system, this embodiment provides an electronic device with balanced omnidirectional communication and high positioning accuracy.

Landscapes

  • Waveguide Aerials (AREA)

Abstract

The present application relates to an antenna module, a positioning system, and an electronic device. The antenna module comprises: a dielectric substrate having a first surface and a second surface that are arranged facing away from each other; a grounding plate which is arranged on the first surface of the dielectric substrate; a radiation patch which is arranged on the second surface of the dielectric substrate, the radiation patch being provided with a feed point and a plurality of grounding points, and the plurality of grounding points being respectively arranged on the two sides of the feed point in a first direction; and a plurality of grounding structures, the grounding structures passing through the dielectric substrate so as to connect the grounding plate and the corresponding grounding points. By arranging the grounding points located on the two sides of the feed point respectively, the flow directions of surface currents of the radiation patch can be changed, thus making the surface currents at least partially cancel each other out in a second direction, the second direction being perpendicular to the first direction.

Description

天线模组、定位***和电子设备Antenna modules, positioning systems and electronic equipment
相关申请的交叉引用Cross-references to related applications
本申请要求于2022年08月24日提交中国专利局、申请号为202211019541X、发明名称为“天线模组、定位***和电子设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims priority to the Chinese patent application filed with the China Patent Office on August 24, 2022, with the application number 202211019541X and the invention name "Antenna Module, Positioning System and Electronic Equipment", the entire content of which is incorporated herein by reference. Applying.
技术领域Technical field
本申请涉及射频技术领域，特别是涉及一种天线模组、定位***和电子设备。This application relates to the field of radio frequency technology, and in particular to an antenna module, positioning system and electronic equipment.
背景技术Background technique
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成示例性技术。The statements herein merely provide background information relevant to the present application and do not necessarily constitute exemplary techniques.
随着通信技术的发展，诸如智能手机等电子设备能够实现的功能越来越多，电子设备的天线类型也更加多样化，例如包括UWB天线、蓝牙天线还是无线局域网天线等。其中，部分天线为全向天线，全向天线对于方向图的圆度具有较高的要求。但是，现有天线的方向图已无法满足用户的使用需求。With the development of communication technology, electronic devices such as smartphones can implement more and more functions, and the types of antennas in electronic devices have become more diverse, including UWB antennas, Bluetooth antennas, and wireless LAN antennas. Among them, some antennas are omnidirectional antennas, and omnidirectional antennas have high requirements on the roundness of the pattern. However, the pattern of existing antennas can no longer meet the needs of users.
发明内容Contents of the invention
根据本申请的各种实施例，提供一种能够改善方向图的天线模组、定位***和电子设备。According to various embodiments of the present application, an antenna module, a positioning system and an electronic device capable of improving a pattern are provided.
第一方面，本申请提供了一种天线模组，包括：In the first aspect, this application provides an antenna module, including:
介质基板，具有相背设置的第一面和第二面；a dielectric substrate having a first side and a second side arranged oppositely;
接地板，设于所述介质基板的第一面；A ground plate is provided on the first surface of the dielectric substrate;
辐射贴片，设于所述介质基板的第二面，所述辐射贴片设有馈电点和多个接地点，多个所述接地点分别设于所述馈电点的第一方向上的两侧；A radiation patch is provided on the second surface of the dielectric substrate. The radiation patch is provided with a feed point and a plurality of ground points. The plurality of ground points are respectively provided in the first direction of the feed point. both sides of;
多个接地结构，所述接地结构贯穿所述介质基板以连接所述接地板和对应的所述接地点。A plurality of ground structures penetrate the dielectric substrate to connect the ground plate and the corresponding ground point.
第二方面，本申请提供了一种定位***，包括：In the second aspect, this application provides a positioning system, including:
三个天线模组，至少一个所述天线模组为如上述的天线模组，三个所述天线模组不共线排布；Three antenna modules, at least one of the antenna modules is the antenna module as described above, and the three antenna modules are not arranged in a collinear manner;
其中，三个所述天线模组用于与待定位设备通信，以确定所述待定位设备的位置。Among them, three of the antenna modules are used to communicate with the device to be positioned to determine the location of the device to be positioned.
第三方面，本申请提供了一种电子设备，包括如上述的天线模组或包括如上述的定位***。In a third aspect, the present application provides an electronic device, including the above-mentioned antenna module or the above-mentioned positioning system.
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。The details of one or more embodiments of the application are set forth in the accompanying drawings and the description below. Other features, objects and advantages of the application will become apparent from the description, drawings and claims.
附图说明Description of drawings
为了更清楚地说明本申请实施例或相关技术中的技术方案，下面将对实施例或相关技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly explain the technical solutions in the embodiments of the present application or related technologies, the drawings needed to be used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings in the following description are only for the purpose of describing the embodiments or related technologies. For some embodiments of the application, those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.
图1为一实施例的天线模组的俯视示意图之一；Figure 1 is a schematic top view of an antenna module according to an embodiment;
图2为图1实施例的天线模组的剖视示意图；Figure 2 is a schematic cross-sectional view of the antenna module according to the embodiment of Figure 1;
图3为一实施例的辐射贴片的俯视示意图之二； Figure 3 is a second schematic top view of a radiation patch according to an embodiment;
图4为一实施例的辐射贴片的俯视示意图之三；Figure 4 is a third schematic top view of a radiation patch according to an embodiment;
图5为一实施例的辐射贴片的俯视示意图之四；Figure 5 is the fourth schematic top view of a radiation patch according to an embodiment;
图6为一实施例的辐射贴片的可调参数示意图；Figure 6 is a schematic diagram of adjustable parameters of a radiation patch according to an embodiment;
图7为图5实施例的天线模组工作在基模时的表面电流分布；Figure 7 shows the surface current distribution of the antenna module in the embodiment of Figure 5 when it operates in the fundamental mode;
图8为未采用本实施例的技术方案的天线模组的多个频率的方向图；Figure 8 is a pattern diagram of multiple frequencies of an antenna module that does not adopt the technical solution of this embodiment;
图9为采用图5实施例的天线模组的多个频率的方向图；Figure 9 is a pattern diagram of multiple frequencies using the antenna module of the embodiment of Figure 5;
图10为一实施例的定位***的结构示意图之一；Figure 10 is a schematic structural diagram of a positioning system according to an embodiment;
图11为未采用本实施例的技术方案的天线模组的多个频率的PDOA曲线；Figure 11 shows the PDOA curves at multiple frequencies of the antenna module that does not adopt the technical solution of this embodiment;
图12为采用图5实施例的天线模组的多个频率的PDOA曲线；Figure 12 is a PDOA curve at multiple frequencies using the antenna module of the embodiment of Figure 5;
图13为一实施例的多个天线模组间距下的PDOA曲线之一；Figure 13 is one of the PDOA curves under the spacing between multiple antenna modules according to an embodiment;
图14为一实施例的多个天线模组间距下的PDOA曲线之二；Figure 14 is the second PDOA curve under the spacing between multiple antenna modules according to an embodiment;
图15为一实施例的定位***的结构示意图之二；Figure 15 is a second structural schematic diagram of a positioning system according to an embodiment;
图16为一实施例的定位***的结构示意图之三；Figure 16 is a third structural schematic diagram of a positioning system according to an embodiment;
图17为一实施例的定位***的结构示意图之四。Figure 17 is a fourth structural schematic diagram of a positioning system according to an embodiment.
具体实施方式Detailed ways
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本申请，并不用于限定本申请。In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.
可以理解，本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件，但这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。举例来说，在不脱离本申请的范围的情况下，可以将第一方向称为第二方向，且类似地，可将第二方向称为第一方向。第一方向和第二方向两者都是方向，但其不是同一方向。It will be understood that the terms "first", "second", etc. used in this application may be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one element from another element. For example, a first direction may be referred to as a second direction, and similarly, the second direction may be referred to as a first direction, without departing from the scope of the present application. The first direction and the second direction are both directions, but they are not the same direction.
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。在本申请的描述中，“若干”的含义是至少一个，例如一个，两个等，除非另有明确具体的限定。In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited. In the description of this application, "several" means at least one, such as one, two, etc., unless otherwise expressly and specifically limited.
本申请实施例提供一种天线模组，本实施例的天线模组应用于射频***中，射频***用于支持电子设备的通信功能。可以但不限于是各种个人计算机、笔记本电脑、智能手机、平板电脑、物联网设备和便携式可穿戴设备，物联网设备可为智能音箱、智能电视、智能空调、智能车载设备、智能汽车等。便携式可穿戴设备可为智能手表、智能手环、头戴设备等。具体地，电子设备可包括壳体组件和集成有天线模组的射频***。壳体组件可以包括中框和后盖。中框可以为具有通孔的框体结构，后盖用于形成电子设备的外部轮廓。在后盖的成型过程中，可以在后盖上形成后置摄像头孔、指纹识别模组、毫米波天线模组安装孔等结构。其中，后盖可以为非金属后盖，例如为塑胶后盖、陶瓷后盖、3D玻璃后盖等。控制器能够控制电子设备的运行等。An embodiment of the present application provides an antenna module. The antenna module of this embodiment is used in a radio frequency system. The radio frequency system is used to support the communication function of electronic equipment. It can be, but is not limited to, various personal computers, laptops, smartphones, tablets, Internet of Things devices and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, smart vehicle equipment, smart cars, etc. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. Specifically, the electronic device may include a housing assembly and a radio frequency system integrated with an antenna module. The housing assembly may include a middle frame and a back cover. The middle frame may be a frame structure with a through hole, and the back cover is used to form the outer outline of the electronic device. During the molding process of the back cover, structures such as rear camera holes, fingerprint recognition modules, and millimeter-wave antenna module mounting holes can be formed on the back cover. The back cover may be a non-metal back cover, such as a plastic back cover, a ceramic back cover, a 3D glass back cover, etc. The controller can control the operation of electronic equipment, etc.
图1为一实施例的天线模组的俯视示意图之一，图2为图1实施例的天线模组的剖视示意图，结合参考图1和图2，天线模组包括介质基板、接地板、辐射贴片和多个接地结构。Figure 1 is a schematic top view of an antenna module according to an embodiment. Figure 2 is a schematic cross-sectional view of the antenna module according to the embodiment of Figure 1. With reference to Figures 1 and 2, the antenna module includes a dielectric substrate, a ground plate, Radiating patches and multiple ground structures.
其中，介质基板具有相背设置的第一面和第二面。第二面可以理解为天线模组被组装至电子设备后，朝向电子设备的后盖一侧的面。相应地，第一面即为朝向电子设备的显示屏一侧的面。可选地，介质基板可以包括相互叠加的多个介质层，介质层例如为半固化片(Prepreg，PP)层。进一步地，每两个半固化片层之间可以设置金属层或传输带线，以实现信号的传输。示例性地，金属层可以为铜层、锡层、铅锡合金层、锡铜合金层等。 Wherein, the dielectric substrate has a first surface and a second surface arranged oppositely. The second side can be understood as the side facing the back cover of the electronic device after the antenna module is assembled into the electronic device. Correspondingly, the first side is the side facing the display screen of the electronic device. Optionally, the dielectric substrate may include a plurality of dielectric layers stacked on each other, and the dielectric layer may be, for example, a prepreg (PP) layer. Furthermore, a metal layer or a transmission tape line can be placed between each two prepreg layers to achieve signal transmission. For example, the metal layer may be a copper layer, a tin layer, a lead-tin alloy layer, a tin-copper alloy layer, or the like.
接地板设于所述介质基板的第一面。接地板采用良导体材料，例如可以为铜等。辐射贴片设于所述介质基板的第二面。辐射贴片也采用良导体材料，例如可以为金属材料、合金材料、导电硅胶材料、石墨材料、氧化铟锡(Indium tin oxide，ITO)等，还可以为具有高介电常数的材料，例如具有高介电常数的玻璃、塑料、陶瓷等。辐射贴片可以通过柔性电路板(Flexible Printed Circuit，FPC)、激光直接成型(Laser Direct Structuring，LDS)、液晶聚合物/高分子(Liquid Crystal Polymer，LCP)、聚酰亚胺(Modified PI，MPI)等形式实现，本实施例不做限定。辐射贴片的形状可以为方形或矩形，还可为其它可能的形状，如三角形、梯形或椭圆形，本实施例不做限定。辐射贴片的尺寸可以根据通信频率确定。例如，若辐射贴片为正方形，则边长为0.4λ～0.5λ。其中，λ为中心频率对应的波长。The ground plate is provided on the first surface of the dielectric substrate. The ground plate is made of a good conductor material, such as copper. The radiation patch is disposed on the second surface of the dielectric substrate. Radiation patches also use good conductor materials, such as metal materials, alloy materials, conductive silicone materials, graphite materials, indium tin oxide (ITO), etc., or materials with high dielectric constants, such as High dielectric constant glass, plastic, ceramics, etc. Radiation patches can be made by flexible circuit board (Flexible Printed Circuit, FPC), laser direct structuring (LDS), liquid crystal polymer/polymer (LCP), polyimide (Modified PI, MPI) ) and other forms, which are not limited in this embodiment. The shape of the radiation patch may be square or rectangular, or may be other possible shapes, such as triangle, trapezoid, or ellipse, which are not limited in this embodiment. The size of the radiation patch can be determined based on the communication frequency. For example, if the radiation patch is a square, the side length is 0.4λ~0.5λ. Among them, λ is the wavelength corresponding to the center frequency.
所述辐射贴片设有馈电点和多个接地点，多个接地点互相间隔设置。其中，馈电点是指辐射贴片用于连接馈电结构的位置点，接地点是指辐射贴片用于连接接地结构的位置点。具体地，多个所述接地点分别设于所述馈电点的第一方向上的两侧，即，馈电点在第一方向上的各侧分别设有至少一个接地点。示例性地，以图1的辐射贴片设有两个接地点为例，馈电点的上侧和下侧分别设有一个接地点。所述接地结构贯穿所述介质基板以连接所述接地板和对应的所述接地点。具体地，多个接地结构分别与多个接地点一一对应设置，接地结构的一端与对应的接地点连接，接地结构的另一端与接地板连接。其中，接地结构可以为金属化过孔，例如可以在介质基板的孔壁上电镀一层铜形成。The radiation patch is provided with a feed point and multiple ground points, and the multiple ground points are spaced apart from each other. Among them, the feed point refers to the point where the radiation patch is used to connect to the feed structure, and the ground point refers to the point where the radiation patch is used to connect to the ground structure. Specifically, a plurality of the ground points are respectively provided on both sides of the feed point in the first direction, that is, at least one ground point is provided on each side of the feed point in the first direction. For example, taking the radiation patch in Figure 1 as being provided with two grounding points, one grounding point is provided on the upper side and the lower side of the feed point respectively. The ground structure penetrates the dielectric substrate to connect the ground plate and the corresponding ground point. Specifically, multiple ground structures are respectively arranged in one-to-one correspondence with multiple ground points. One end of the ground structure is connected to the corresponding ground point, and the other end of the ground structure is connected to the ground plate. The grounding structure may be a metallized via hole, which may be formed by electroplating a layer of copper on the hole wall of the dielectric substrate.
可以理解的是，天线模组中的电流路径和方向是由接地点与馈电点之间的位置关系确定的。因此，本实施例的馈电点向辐射贴片馈入信号时，由于多个接地点同时接地，多个接地点会分别形成各自的电流路径，从而共同形成辐射贴片的表面电流分布。其中，任一电流都可以被分解为互相垂直的水平分量和竖直分量。为了便于说明，定义竖直分量是沿第一方向的分量，而水平分量是沿第二方向的分量，第二方向垂直于第一方向。那么，不同的接地点对应的电流的竖直分量的取值和正负都会不同。It can be understood that the current path and direction in the antenna module are determined by the positional relationship between the ground point and the feed point. Therefore, when the feed point of this embodiment feeds a signal to the radiation patch, since multiple ground points are grounded at the same time, the multiple ground points will form their own current paths, thereby jointly forming the surface current distribution of the radiation patch. Among them, any current can be decomposed into horizontal components and vertical components that are perpendicular to each other. For ease of explanation, the vertical component is defined as the component along the first direction, and the horizontal component is defined as the component along the second direction, and the second direction is perpendicular to the first direction. Then, the value and sign of the vertical component of the current corresponding to different ground points will be different.
可以理解的是，在图1所示的实施例中仅示出了两个接地点，但在其他实施例中，也可以设置4个、6个等数量的接地点，以实现对表面电流更加精细的调节，本实施例不做限定。示例性地，以图1的辐射贴片设有两个接地点的实施例为例进行说明，根据接地点与馈电点之间的位置关系，以及电流会由高电压点流向低电压点的机理可知，若位于馈电点下方的接地点对应的电流的竖直分量的方向为正，则位于馈电点下方的接地点对应的电流的竖直分量的方向就会为负。相应地，可使得电流在竖直分量在辐射远场相互抵消，从而使水平分量占绝大多数的辐射贡献，进而抑制辐射贴片在高次模及纵向基模的辐射，激发辐射贴片在横向基模的辐射，优化天线模组的方向图的圆度。其中，圆度越大，天线模组在该平面的全向覆盖能力越好；圆度越小，说明天线模组在该平面的全向覆盖能力越差。对于全向天线而言，当方向图的圆度较小时，天线模组在低增益处会存在性能缺角，影响用户使用体验。此外，通过提升方向图的圆度，也可以改善天线模组的相位中心的稳定性。其中，相位中心可以理解为电磁波在离开天线模组一定的距离后，其等相位面近似为一个球面，该球面的球心即为该天线模组的等效相位中心。也即，天线相位中心可以理解为是一个理论上的空间点。It can be understood that in the embodiment shown in FIG. 1 , only two grounding points are shown, but in other embodiments, 4, 6, etc. grounding points can also be provided to achieve better control of the surface current. Fine adjustment is not limited in this embodiment. For example, taking the embodiment of the radiation patch provided with two grounding points in Figure 1 as an example, according to the positional relationship between the grounding point and the feed point, and the current will flow from the high voltage point to the low voltage point. The mechanism shows that if the direction of the vertical component of the current corresponding to the ground point located below the feed point is positive, then the direction of the vertical component of the current corresponding to the ground point located below the feed point will be negative. Correspondingly, the vertical components of the current can be made to cancel each other in the radiation far field, so that the horizontal component accounts for the vast majority of the radiation contribution, thereby suppressing the radiation of the radiation patch in the higher-order mode and the longitudinal fundamental mode, and exciting the radiation patch in the radiation far field. The radiation of the transverse fundamental mode optimizes the roundness of the antenna module’s pattern. Among them, the greater the roundness, the better the omnidirectional coverage ability of the antenna module on the plane; the smaller the roundness, the worse the omnidirectional coverage ability of the antenna module on the plane. For omnidirectional antennas, when the circularity of the pattern is small, the antenna module will have a performance gap at low gain, affecting the user experience. In addition, by improving the circularity of the pattern, the stability of the phase center of the antenna module can also be improved. The phase center can be understood as the equivalent phase surface of the electromagnetic wave that is approximately a spherical surface after it leaves the antenna module at a certain distance, and the center of the spherical surface is the equivalent phase center of the antenna module. That is, the antenna phase center can be understood as a theoretical space point.
在本实施例中，通过设置分别位于馈电点两侧的接地点，可以改变辐射贴片的表面电流的流向，使表面电流在第二方向至少部分相互抵消，从而提高了表面电流中沿第一方向的电流分量(即水平分量)的占比，进而提升了水平面方向图的圆度，并提升了天线模组的相位中心的稳定性。In this embodiment, by arranging ground points respectively located on both sides of the feed point, the flow direction of the surface current of the radiation patch can be changed, so that the surface currents at least partially cancel each other in the second direction, thereby improving the surface current along the third direction. The proportion of the current component in one direction (ie, the horizontal component) improves the roundness of the horizontal plane pattern and improves the stability of the phase center of the antenna module.
在其中一个实施例中，继续参考图2，天线模组还包括馈电结构。馈电结构与馈电点连接，分别贯穿介质基板和接地板，并与接地板电隔离。馈电结构用于对辐射贴片的馈电点进行馈电，从而使辐射贴片表面产生电流。具体地，馈电结构使辐射贴片的馈电点与射频芯片的射频端口连接，通过输入射频芯片的射频信号实现对辐射贴片的馈电。 In one embodiment, continuing to refer to FIG. 2 , the antenna module further includes a feed structure. The feed structure is connected to the feed point, runs through the dielectric substrate and the ground plate respectively, and is electrically isolated from the ground plate. The feed structure is used to feed the feed point of the radiation patch, thereby generating current on the surface of the radiation patch. Specifically, the feed structure connects the feed point of the radiation patch to the radio frequency port of the radio frequency chip, and feeds the radiation patch by inputting the radio frequency signal of the radio frequency chip.
图3为一实施例的辐射贴片的俯视示意图之二，参考图3，在其中一个实施例中，所述辐射贴片为轴对称结构，所述馈电点设于所述轴对称结构的对称轴上，所述对称轴的两侧分别设有至少一个所述接地点。在接地点位置不变的前提下，本实施例通过将馈电点设于对称轴上，可以使对称轴两侧的表面电流相均衡。即，可以使对称轴两侧的表面电流的竖直分量在辐射远场尽量多地相互抵消，从而提高总电流中水平分量的比重，从而更好地提升天线模组的方向图的圆度。Figure 3 is a second schematic top view of a radiation patch according to an embodiment. Referring to Figure 3, in one embodiment, the radiation patch has an axially symmetrical structure, and the feed point is located at the center of the axially symmetrical structure. On the symmetry axis, at least one grounding point is provided on both sides of the symmetry axis. On the premise that the position of the grounding point remains unchanged, in this embodiment, by locating the feed point on the symmetry axis, the surface currents on both sides of the symmetry axis can be balanced. That is, the vertical components of the surface current on both sides of the symmetry axis can be made to cancel each other out as much as possible in the radiation far field, thereby increasing the proportion of the horizontal component in the total current, thereby better improving the roundness of the antenna module's pattern.
在其中一个实施例中，多个所述接地点关于所述辐射贴片的对称轴呈轴对称设置。也即，对称轴两侧的接地点的数量相同，且设置位置相对应。相应地，多个接地结构关于所述辐射贴片的对称轴呈轴对称设置。具体地，在馈电点已设于对称轴上时，采用轴对称的方式设置多个接地点，可以使表面电流也关于对称轴呈轴对称设置，从而使表面电流的竖直分量完全抵消。也即，天线模组收发信号时仅受到水平分量的电流的激励，从而大大提升方向图的圆度。In one embodiment, the plurality of grounding points are arranged axially symmetrically with respect to the symmetry axis of the radiation patch. That is to say, the number of ground points on both sides of the symmetry axis is the same and the locations are corresponding. Correspondingly, the plurality of ground structures are arranged axially symmetrically about the symmetry axis of the radiation patch. Specifically, when the feed point is set on the axis of symmetry, multiple grounding points are arranged in an axially symmetrical manner, so that the surface current can also be arranged axially symmetrically about the symmetry axis, so that the vertical component of the surface current can be completely offset. That is to say, when the antenna module transmits and receives signals, it is only excited by the horizontal component of the current, thereby greatly improving the circularity of the pattern.
在其中一个实施例中，多个所述接地点设于所述馈电点在第二方向上的同一侧，所述第二方向垂直于所述第一方向。具体地，多个接地点均设置在所述辐射体的第一侧边的边缘区，所述馈电点与所述边缘区间隔设置。其中，边缘区可以理解为靠近第一侧边的一个矩形区域。通过上述接地点的设置方式，本实施例的天线模组形成一种平面倒F形天线(Planar Inverted F-shaped Antenna，PIFA)模组。平面倒F形天线模组的体积小、结构简单，因此可以较好地适配于手机等便携电子设备中。具体地，可以通过调节平面倒F形天线模组的辐射贴片的尺寸、辐射金属片的高度等调节天线模组的谐振频率。因此，可以根据使用场景对上述参数进行调节，本实施例对于上述参数的具体取值不做限定。In one of the embodiments, a plurality of the ground points are provided on the same side of the feed point in a second direction, and the second direction is perpendicular to the first direction. Specifically, a plurality of grounding points are arranged in the edge area of the first side of the radiator, and the feed point is spaced apart from the edge area. The edge area can be understood as a rectangular area close to the first side. Through the above-mentioned arrangement of the ground point, the antenna module of this embodiment forms a Planar Inverted F-shaped Antenna (PIFA) module. The planar inverted F-shaped antenna module has a small size and simple structure, so it can be well adapted to portable electronic devices such as mobile phones. Specifically, the resonant frequency of the antenna module can be adjusted by adjusting the size of the radiation patch of the planar inverted F-shaped antenna module, the height of the radiation metal piece, etc. Therefore, the above parameters can be adjusted according to the usage scenario, and this embodiment does not limit the specific values of the above parameters.
图4为一实施例的辐射贴片的俯视示意图之三，参考图4，在其中一个实施例中，所述接地点的数量为两个，且各所述接地点与所述馈电点之间分别设有一个缝隙。具体地，通过在辐射贴片上开设缝隙，可以降低辐射贴片的重量，并调节阻抗匹配，以使阻抗为50Ω左右。同时，缝隙还能够附加电感和电容，以有效调节辐射贴片的谐振特性，在一定程度上展宽带宽，从而提高天线模组的通信质量。而且，缝隙还能够调节辐射贴片上的电流路径，以获得需要的电流分布。因此，通过在辐射贴片设置缝隙，无需设置过多的接地点，即可获得需要的表面电流分布，从而有效减小辐射贴片的尺寸。示例性地，缝隙的形状可以为矩形、方形、U型、圆环、椭圆形等，具体形状和具***置根据实际需求进行设置，本实施例不做限定。可以理解的是，在一些实施例中，若未设置缝隙时的天线模组的阻抗可以满足阻抗匹配和带宽的要求，则可以不在辐射贴片开设缝隙。Figure 4 is a third schematic top view of a radiation patch according to an embodiment. Referring to Figure 4, in one embodiment, the number of ground points is two, and the distance between each ground point and the feed point is There is a gap in between. Specifically, by opening a gap in the radiation patch, the weight of the radiation patch can be reduced, and the impedance matching can be adjusted so that the impedance is about 50Ω. At the same time, the gap can also add inductors and capacitors to effectively adjust the resonance characteristics of the radiation patch, broaden the bandwidth to a certain extent, and thereby improve the communication quality of the antenna module. Moreover, the gap can also adjust the current path on the radiation patch to obtain the required current distribution. Therefore, by setting gaps in the radiation patch, the required surface current distribution can be obtained without setting too many grounding points, thereby effectively reducing the size of the radiation patch. For example, the shape of the gap may be rectangular, square, U-shaped, circular, oval, etc. The specific shape and specific position are set according to actual needs and are not limited in this embodiment. It can be understood that in some embodiments, if the impedance of the antenna module when no gap is provided can meet the impedance matching and bandwidth requirements, the gap may not be provided in the radiation patch.
在其中一个实施例中，当所述辐射贴片为轴对称结构时，两个所述缝隙关于所述辐射贴片的对称轴呈轴对称设置。具体地，在馈电点已设于对称轴上，且两个接地点采用轴对称的方式设置时，通过设置轴对称的两个缝隙，可以使表面电流也呈轴对称设置，从而使表面电流的竖直分量完全抵消。也即，天线模组收发信号时仅受到水平分量的电流的激励，从而大大提升方向图的圆度。In one embodiment, when the radiation patch has an axially symmetric structure, the two slits are arranged axially symmetrically with respect to the symmetry axis of the radiation patch. Specifically, when the feed point has been set on the axis of symmetry and the two grounding points are set up in an axially symmetrical manner, by setting up two axially symmetrical gaps, the surface current can also be set up axially symmetrically, so that the surface current The vertical components of are completely canceled out. That is to say, when the antenna module transmits and receives signals, it is only excited by the horizontal component of the current, thereby greatly improving the circularity of the pattern.
在其中一个实施例中，两个所述接地点均位于所述辐射贴片的第一侧边，所述缝隙由所述第一侧边沿所述第一方向向所述辐射贴片的中部延伸。具体地，通过设置缝隙的延伸方向，可以对表面电流的流向进行引导，从而增大电流中水平分量的比重。例如，若未设置缝隙，电流中水平分量和竖直分量的比重均为50％，则通过设置缝隙，可以使电流中水平分量的比重上升至55％。进一步地，当缝隙的延伸方向为第一方向时，由于第一方向与水平分量的方向相同，故可以使电流中水平分量的比重进一步上升至60％，从而进一步提升天线模组的通信质量。可以理解的是，上述数据仅用于示例性说明，而不用于限定本实施例的保护范围。In one embodiment, the two grounding points are located on the first side of the radiation patch, and the gap extends from the first side to the middle of the radiation patch along the first direction. . Specifically, by setting the extension direction of the gap, the flow direction of the surface current can be guided, thereby increasing the proportion of the horizontal component in the current. For example, if no gap is provided and the proportions of the horizontal component and the vertical component in the current are both 50%, then by providing the gap, the proportion of the horizontal component in the current can be increased to 55%. Furthermore, when the extension direction of the slot is the first direction, since the first direction is the same as the direction of the horizontal component, the proportion of the horizontal component in the current can be further increased to 60%, thereby further improving the communication quality of the antenna module. It can be understood that the above data are only used for illustrative purposes and are not used to limit the protection scope of this embodiment.
在其中一个实施例中，所述辐射贴片还包括与所述第一侧边在所述第一方向上相背设置的第二侧边，所述馈电点与所述第一侧边之间的距离小于所述馈电点与所述第二侧边之 间的距离。具体地，当馈电点靠近接地点设置时，更容易使阻抗接近50Ω，从而提高阻抗匹配的程度，减少信号传输路径上的功率损耗，提高天线模组的收发质量。In one embodiment, the radiation patch further includes a second side disposed opposite to the first side in the first direction, between the feed point and the first side The distance between is less than the distance between the feed point and the second side distance between. Specifically, when the feed point is set close to the ground point, it is easier to bring the impedance closer to 50Ω, thereby improving the degree of impedance matching, reducing power loss on the signal transmission path, and improving the transceiver quality of the antenna module.
图5为一实施例的辐射贴片的俯视示意图之四，参考图5，在其中一个实施例中，所述辐射贴片还设有开口，所述开口由所述第一侧边延伸至所述馈电点，并在第二方向上连通两个所述缝隙，所述第二方向垂直于所述第一方向。通过设置开口，可以通过改变开口在第一方向和/或第二方向上的尺寸，进一步调节天线模组的阻抗特性，从而实现天线模组的阻抗匹配。通过设置天线模组的多个参数，可以灵活地调节天线模组的谐振特性和阻抗匹配特性，从而使天线模组可以适配于不用的使用场景。图6为一实施例的辐射贴片的可调参数示意图，参考图6，辐射贴片的长度Lpatch和辐射贴片的宽度Wpatch可以确定天线模组的谐振频率。缝隙的长度Lslot、缝隙的宽度Wslot、开口的宽度Wfeed和开口的深度Dfeed都会影响天线匹配，而且能够在一定程度上调节天线模组的带宽。介质基板的厚度H对天线模组的带宽及谐振频率均有影响。具体地，上述各参数的调节范围可以如下：Lpatch＝3mm～7mm，Wpatch＝3mm～7mm，Lslot＝0mm～3mm，Wslot＝0mm～2mm，Wfeed＝0.5mm～2mm，Dfeed＝0mm～4mm，H＝0.05mm～2mm，D1≈D2＝5mm～20mm。可以理解的是，上述具体尺寸受介质及周围环境影响，可以有一定范围的浮动。FIG. 5 is a fourth schematic top view of a radiation patch according to an embodiment. Referring to FIG. 5 , in one embodiment, the radiation patch is further provided with an opening, and the opening extends from the first side to the The feed point connects the two slits in a second direction, and the second direction is perpendicular to the first direction. By providing the opening, the impedance characteristics of the antenna module can be further adjusted by changing the size of the opening in the first direction and/or the second direction, thereby achieving impedance matching of the antenna module. By setting multiple parameters of the antenna module, the resonance characteristics and impedance matching characteristics of the antenna module can be flexibly adjusted, so that the antenna module can be adapted to different usage scenarios. FIG. 6 is a schematic diagram of adjustable parameters of a radiation patch according to an embodiment. Referring to FIG. 6 , the length Lpatch of the radiation patch and the width Wpatch of the radiation patch can determine the resonant frequency of the antenna module. The length of the slot Lslot, the width of the slot Wslot, the width of the opening Wfeed and the depth of the opening Dfeed will all affect the antenna matching and can adjust the bandwidth of the antenna module to a certain extent. The thickness H of the dielectric substrate has an impact on the bandwidth and resonant frequency of the antenna module. Specifically, the adjustment range of each of the above parameters can be as follows: Lpatch=3mm~7mm, Wpatch=3mm~7mm, Lslot=0mm~3mm, Wslot=0mm~2mm, Wfeed=0.5mm~2mm, Dfeed=0mm~4mm, H ＝0.05mm～2mm, D1≈D2＝5mm～20mm. It can be understood that the above specific dimensions are affected by the medium and surrounding environment, and may fluctuate within a certain range.
图7为图5实施例的天线模组工作在基模时的表面电流分布，参考图7，箭头粗细代表电流相对强弱。其中，越靠近馈电点和接地点的位置的阻抗越小，电流越强，相应地，越远离馈电点和接地点的位置的阻抗越大，电流越弱。当馈电点设置在对称轴上时，对称轴上方的电流的竖直分量与对称轴下方的电流的竖直分量的幅度相同，且方向相反。因此，可以通过竖直分量的电流的相互抵消，使最终的电流仅包括水平分量。图8为未采用本实施例的技术方案的天线模组的多个频率的方向图，即，图8的(a)、(b)和(c)的频率互不相同。图9为采用图5实施例的天线模组的多个频率的方向图，即，图9的(a)、(b)和(c)的频率互不相同。根据图9可知，通过采用本实施例的技术方案，当频率跨度为300MHz时，本实施例的天线模组的多个方向图较为接近，而图8中的多个方向图之间的差异较大。由此可知，本实施例的天线模组具有更稳定的方向图。FIG. 7 shows the surface current distribution of the antenna module of the embodiment of FIG. 5 when operating in the fundamental mode. Referring to FIG. 7 , the thickness of the arrow represents the relative strength of the current. Among them, the position closer to the feed point and the ground point has a smaller impedance and the stronger the current. Correspondingly, the position farther away from the feed point and the ground point has a larger impedance and the weaker the current. When the feed point is set on the symmetry axis, the vertical component of the current above the symmetry axis has the same amplitude and opposite direction as the vertical component of the current below the symmetry axis. Therefore, the final current can be made to include only the horizontal component by canceling each other out of the vertical components of the current. Figure 8 is a pattern of multiple frequencies of an antenna module that does not adopt the technical solution of this embodiment. That is, the frequencies of (a), (b) and (c) of Figure 8 are different from each other. FIG. 9 is a pattern of multiple frequencies using the antenna module of the embodiment of FIG. 5 , that is, the frequencies of (a), (b) and (c) of FIG. 9 are different from each other. According to Figure 9, it can be seen that by adopting the technical solution of this embodiment, when the frequency span is 300MHz, the multiple directional patterns of the antenna module of this embodiment are relatively close, while the differences between the multiple directional patterns in Figure 8 are relatively small. big. It can be seen from this that the antenna module of this embodiment has a more stable pattern.
图10为一实施例的定位***的结构示意图之一，参考图10，定位***包括三个天线模组。其中，至少一个所述天线模组为如上述的天线模组，三个所述天线模组不共线排布。三个所述天线模组用于与待定位设备通信，以确定所述待定位设备的位置。具体地，由于天线模组具有较佳的方向图的圆度，本实施例的定位***可以具有较高的检测精度。FIG. 10 is a schematic structural diagram of a positioning system according to an embodiment. Referring to FIG. 10 , the positioning system includes three antenna modules. Wherein, at least one of the antenna modules is the above-mentioned antenna module, and the three antenna modules are not arranged in a collinear manner. The three antenna modules are used to communicate with the device to be positioned to determine the location of the device to be positioned. Specifically, since the antenna module has better circularity of the pattern, the positioning system of this embodiment can have higher detection accuracy.
在其中一个实施例中，定位***可以为超宽带(Ultra WideBand，UWB)无线通信技术定位***。其中，UWB是一种短距离的无线通信方式。其传输距离通常在10m以内，使用1GHz以上带宽。UWB不采用载波，而是利用纳秒至微微秒级的非正弦波窄脉冲传输数据，因此，其所占的频谱范围很宽，适用于高速、近距离的无线个人通信。FCC规定，UWB的工作频段范围从3.1GHz到10.6GHz，最小工作频宽为500MHz。目前主流的UWB频段中心频率为6.5GHz和8GHz。UWB位置识别的过程可以分为：信号的接收、保存数据和解算。在一开始，定位***可以获取待定位设备发射的UWB信号，接收到待定位设备的UWB信号之后，定位***要进行信号的解算处理，然后得到待定位设备的距离和角度信息，从而识别出待定位设备相对定位***的相对空间位置。可以理解的是，定位***可以根据信号达到相位差(Phase-Difference-of-Arrival，PDOA)的方法是通过某些硬件设备感知发射节点信号的到达方向，计算接收节点和锚节点之间的相对方位或角度，然后再利用三角测量法或其他方式计算出未知节点的位置的方法。In one embodiment, the positioning system may be an Ultra WideBand (UWB) wireless communication technology positioning system. Among them, UWB is a short-distance wireless communication method. Its transmission distance is usually within 10m, using bandwidth above 1GHz. UWB does not use carrier waves, but uses nanosecond to picosecond non-sinusoidal narrow pulses to transmit data. Therefore, it occupies a wide spectrum range and is suitable for high-speed, short-range wireless personal communications. FCC stipulates that the operating frequency band of UWB ranges from 3.1GHz to 10.6GHz, and the minimum operating bandwidth is 500MHz. The current mainstream UWB frequency band center frequencies are 6.5GHz and 8GHz. The process of UWB location recognition can be divided into: signal reception, data storage and interpretation. At the beginning, the positioning system can obtain the UWB signal emitted by the device to be positioned. After receiving the UWB signal of the device to be positioned, the positioning system must perform signal processing and then obtain the distance and angle information of the device to be positioned, thereby identifying The relative spatial position of the device to be positioned relative to the positioning system. It can be understood that the positioning system can achieve the Phase-Difference-of-Arrival (PDOA) based on the signal by sensing the arrival direction of the transmitting node signal through certain hardware devices and calculating the relative position between the receiving node and the anchor node. Orientation or angle, and then use triangulation or other methods to calculate the location of the unknown node.
在本实施例中，通过提升天线方向图的圆度及相位中心稳定性，可以改善天线PDOA曲线的斜率和收敛度，从而提升天线测角精度。具体地，图11为未采用本实施例的技术方案的天线模组的多个频率的PDOA曲线，图12为采用图5实施例的天线模组的多个频率的PDOA曲线。其中，曲线图的横轴为PDOA值、纵轴为方位角。每个图分别包括一 个PDOA曲线簇，PDOA曲线簇包括多条PDOA曲线，每一PDOA曲线分别对应一个俯仰角，再在固定该俯仰角的基础上，采集不同方位角下的PDOA值，对这些PDOA值进行拟合，便可以得到PDOA曲线。结合参考图11和图12可知，采用图5实施例的天线模组时，不同频率的PDOA曲线之间的差异性更小，即，PDOA曲线的收敛度更好，由此可以验证本申请实施例的天线模组具有更好的PDOA性能。而且，结合参考图11和图12可知，采用图5实施例的天线模组的PDOA曲线的斜率更优，从而可以提高定位***的测角精度。In this embodiment, by improving the roundness and phase center stability of the antenna pattern, the slope and convergence of the antenna PDOA curve can be improved, thereby improving the antenna angle measurement accuracy. Specifically, FIG. 11 shows the PDOA curves at multiple frequencies of the antenna module that does not adopt the technical solution of this embodiment, and FIG. 12 shows the PDOA curves of the antenna module that adopts the embodiment of FIG. 5 at multiple frequencies. Among them, the horizontal axis of the graph is the PDOA value and the vertical axis is the azimuth angle. Each figure includes a PDOA curve cluster. The PDOA curve cluster includes multiple PDOA curves. Each PDOA curve corresponds to a pitch angle. On the basis of fixing the pitch angle, PDOA values at different azimuth angles are collected and fitted to these PDOA values. , the PDOA curve can be obtained. With reference to Figures 11 and 12, it can be seen that when the antenna module of the embodiment of Figure 5 is used, the difference between the PDOA curves of different frequencies is smaller, that is, the convergence of the PDOA curve is better, which can verify the implementation of the present application. The antenna module of the example has better PDOA performance. Moreover, with reference to Figures 11 and 12, it can be seen that the slope of the PDOA curve using the antenna module in the embodiment of Figure 5 is better, thereby improving the angle measurement accuracy of the positioning system.
进一步地，对PDOA的计算原理公式(1)进行求导，可以获得公式(2)。根据公式(2)可知，增大d/λ，可以提高定位***的测角精度。具体地，图13为一实施例的多个天线模组间距下的PDOA曲线之一，图14为一实施例的多个天线模组间距下的PDOA曲线之二，图13和图14均以最佳天线模组间距d＝18为例作为对照。其中，曲线图的横轴为方位角、纵轴为PDOA值。天线模组间距是指相邻的两个天线模组中心之间的距离，例如天线模组1的中心与天线模组2的中心之间的距离，或天线模组1的中心与天线模组3的中心之间的距离。根据图13可知，若减小天线模组之间的间距d，则会导致PDOA曲线的斜率降低，测角精度变小。参考图14可知，若增大天线模组之间的间距d至超过1/2波长，就会产生相位模糊，导致测角精度变小。因此，定位***中的多个天线模组应当选择恰当的间距d，例如小于或等于0.5波长，从而使定位***中的多个天线紧凑排布，且定位精度较高。

Further, by deriving the calculation principle formula (1) of PDOA, formula (2) can be obtained. According to formula (2), it can be seen that increasing d/λ can improve the angle measurement accuracy of the positioning system. Specifically, Figure 13 is one of the PDOA curves under the spacing of multiple antenna modules in an embodiment, and Figure 14 is the second PDOA curve under the spacing between multiple antenna modules in one embodiment. Both Figures 13 and 14 are based on The optimal antenna module spacing d=18 is taken as an example for comparison. Among them, the horizontal axis of the graph is the azimuth angle, and the vertical axis is the PDOA value. The antenna module spacing refers to the distance between the centers of two adjacent antenna modules, such as the distance between the center of antenna module 1 and the center of antenna module 2, or the distance between the center of antenna module 1 and the antenna module The distance between the centers of 3. According to Figure 13, it can be seen that if the distance d between antenna modules is reduced, the slope of the PDOA curve will decrease and the angle measurement accuracy will decrease. Referring to Figure 14, it can be seen that if the distance d between antenna modules is increased to exceed 1/2 wavelength, phase ambiguity will occur, resulting in reduced angle measurement accuracy. Therefore, the multiple antenna modules in the positioning system should choose an appropriate spacing d, for example, less than or equal to 0.5 wavelength, so that the multiple antennas in the positioning system are compactly arranged and the positioning accuracy is high.

继续参考图10，天线***中的三个天线模组可以采用三角形排列。其中，天线模组1和天线模组2在竖直方向对齐，构成第一天线组，第一天线组用于测试垂直方向上的角度差。天线模组1和天线模组3在水平方向对齐，构成第二天线组，第二天线组用于测试水平方向上的角度差。通过分别获取垂直方向和水平方向上的角度差，即可确定待定位设备的位置。其中，具体的信号接收方法和数据处理方法可以参考现有技术中的任一方式实施，本实施例不做限定。此外，三个天线模组的设置方向可以根据实际的使用场景确定，例如可以为图15、图16和图17中的任一种。可以理解的是，上述三个附图的设置方向也仅用于示例性说明，而不用于限定本实施例的保护范围。Continuing to refer to Figure 10, the three antenna modules in the antenna system can be arranged in a triangle. Among them, the antenna module 1 and the antenna module 2 are aligned in the vertical direction to form a first antenna group, and the first antenna group is used to test the angle difference in the vertical direction. Antenna module 1 and antenna module 3 are aligned in the horizontal direction to form a second antenna group. The second antenna group is used to test the angle difference in the horizontal direction. By obtaining the angle difference in the vertical and horizontal directions respectively, the position of the device to be positioned can be determined. The specific signal receiving method and data processing method can be implemented by referring to any method in the prior art, and are not limited in this embodiment. In addition, the installation direction of the three antenna modules can be determined according to the actual usage scenario, for example, it can be any one of Figure 15, Figure 16, and Figure 17. It can be understood that the arrangement directions of the above three drawings are only for illustrative purposes and are not used to limit the protection scope of this embodiment.
本申请实施例还提供了一种电子设备，包括如上述的天线模组或包括如上述的定位***。基于上述天线模组或定位***，本实施例提供了一种全向通信均衡、且定位准确性较高的电子设备。An embodiment of the present application also provides an electronic device, including the above-mentioned antenna module or the above-mentioned positioning system. Based on the above antenna module or positioning system, this embodiment provides an electronic device with balanced omnidirectional communication and high positioning accuracy.
以上所述实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.
以上所述实施例仅表达了本申请实施例的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请实施例构思的前提下，还可以做出若干变形和改进，这些都属于本申请实施例的保护范围。因此，本申请实施例专利的保护范围应以所附权利要求为准。 The above-described embodiments only express several implementation modes of the embodiments of the present application. The descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the embodiments of the present application, and these all fall within the protection scope of the embodiments of the present application. Therefore, the protection scope of the patent of the embodiments of this application should be subject to the appended claims.

Claims (14)

  1. 一种天线模组，包括：An antenna module includes:
    介质基板，具有相背设置的第一面和第二面；a dielectric substrate having a first side and a second side arranged oppositely;
    接地板，设于所述介质基板的第一面；A ground plate is provided on the first surface of the dielectric substrate;
    辐射贴片，设于所述介质基板的第二面，所述辐射贴片设有馈电点和多个接地点，多个所述接地点分别设于所述馈电点的第一方向上的两侧；A radiation patch is provided on the second surface of the dielectric substrate. The radiation patch is provided with a feed point and a plurality of ground points. The plurality of ground points are respectively provided in the first direction of the feed point. both sides of;
    多个接地结构，所述接地结构贯穿所述介质基板以连接所述接地板和对应的所述接地点。A plurality of ground structures penetrate the dielectric substrate to connect the ground plate and the corresponding ground point.
  2. 根据权利要求1所述的天线模组，其中所述辐射贴片为轴对称结构，所述馈电点设于所述轴对称结构的对称轴上，所述对称轴的两侧分别设有至少一个所述接地点。The antenna module according to claim 1, wherein the radiation patch is an axially symmetrical structure, the feed point is located on the symmetry axis of the axially symmetrical structure, and there are at least a said ground point.
  3. 根据权利要求2所述的天线模组，其中多个所述接地点关于所述辐射贴片的对称轴呈轴对称设置。The antenna module according to claim 2, wherein the plurality of ground points are arranged axially symmetrically with respect to the symmetry axis of the radiation patch.
  4. 根据权利要求1所述的天线模组，其中多个所述接地点设于所述馈电点在第二方向上的同一侧，所述第二方向垂直于所述第一方向。The antenna module according to claim 1, wherein a plurality of the ground points are provided on the same side of the feed point in a second direction, and the second direction is perpendicular to the first direction.
  5. 根据权利要求1所述的天线模组，其中所述接地点的数量为两个，各所述接地点与所述馈电点之间分别设有一个缝隙。The antenna module according to claim 1, wherein the number of the grounding points is two, and a gap is provided between each of the grounding points and the feed point.
  6. 根据权利要求5所述的天线模组，其中当所述辐射贴片为轴对称结构时，两个所述缝隙关于所述辐射贴片的对称轴呈轴对称设置。The antenna module according to claim 5, wherein when the radiation patch has an axially symmetric structure, the two slits are arranged axially symmetrically with respect to the symmetry axis of the radiation patch.
  7. 根据权利要求5所述的天线模组，其中两个所述接地点均位于所述辐射贴片的第一侧边，所述缝隙由所述第一侧边沿所述第一方向向所述辐射贴片的中部延伸。The antenna module according to claim 5, wherein the two grounding points are located on the first side of the radiation patch, and the gap radiates from the first side to the first direction along the first side. The middle part of the patch extends.
  8. 根据权利要求7所述的天线模组，其中所述辐射贴片还包括与所述第一侧边在所述第一方向上相背设置的第二侧边，所述馈电点与所述第一侧边之间的距离小于所述馈电点与所述第二侧边之间的距离。The antenna module according to claim 7, wherein the radiation patch further includes a second side arranged opposite to the first side in the first direction, and the feed point is connected to the The distance between the first sides is smaller than the distance between the feed point and the second side.
  9. 根据权利要求7所述的天线模组，其中所述辐射贴片还设有开口，所述开口由所述第一侧边延伸至所述馈电点，并在第二方向上连通两个所述缝隙，所述第二方向垂直于所述第一方向。The antenna module according to claim 7, wherein the radiation patch is further provided with an opening, the opening extends from the first side to the feed point, and connects two of the two in the second direction. In the gap, the second direction is perpendicular to the first direction.
  10. 根据权利要求1所述的天线模组，其中还包括：The antenna module according to claim 1, further comprising:
    馈电结构，所述馈电结构与所述馈电点连接，分别贯穿所述介质基板和所述接地板，并与所述接地板电隔离。A feed structure is connected to the feed point, penetrates the dielectric substrate and the ground plate respectively, and is electrically isolated from the ground plate.
  11. 一种定位***，包括：A positioning system that includes:
    三个天线模组，至少一个所述天线模组为如权利要求1所述的天线模组，三个所述天线模组不共线排布；Three antenna modules, at least one of the antenna modules is the antenna module according to claim 1, and the three antenna modules are not arranged in a collinear manner;
    其中，三个所述天线模组用于与待定位设备通信，以确定所述待定位设备的位置。Among them, three of the antenna modules are used to communicate with the device to be positioned to determine the location of the device to be positioned.
  12. 根据权利要求11所述的定位***，其中所述定位***为超宽带无线通信技术定位***。The positioning system according to claim 11, wherein the positioning system is an ultra-wideband wireless communication technology positioning system.
  13. 一种电子设备，包括：An electronic device including:
    如权利要求1所述的天线模组。The antenna module according to claim 1.
  14. 一种电子设备，包括：An electronic device including:
    如权利要求11所述的定位***。 The positioning system of claim 11.
PCT/CN2023/101304 2022-08-24 2023-06-20 Antenna module, positioning system and electronic device WO2024041138A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211019541.XA CN117673732A (en) 2022-08-24 2022-08-24 Antenna module, positioning system and electronic equipment
CN202211019541.X 2022-08-24

Publications (1)

Publication Number Publication Date
WO2024041138A1 true WO2024041138A1 (en) 2024-02-29

Family

ID=90012342

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/101304 WO2024041138A1 (en) 2022-08-24 2023-06-20 Antenna module, positioning system and electronic device

Country Status (2)

Country Link
CN (1) CN117673732A (en)
WO (1) WO2024041138A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200410449A (en) * 2002-12-09 2004-06-16 D Link Corp Microstrip antenna structure positively adding bandwidth
JP2005204151A (en) * 2004-01-16 2005-07-28 Alps Electric Co Ltd Patch antenna
CN209487711U (en) * 2019-04-23 2019-10-11 南京林业大学 A kind of microstrip antenna of fluting punching double frequency
WO2021088712A1 (en) * 2019-11-05 2021-05-14 RealMe重庆移动通信有限公司 Antenna radiator, antenna assembly, and electronic device
CN114914666A (en) * 2021-02-10 2022-08-16 华为技术有限公司 Antenna and electronic equipment

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200410449A (en) * 2002-12-09 2004-06-16 D Link Corp Microstrip antenna structure positively adding bandwidth
JP2005204151A (en) * 2004-01-16 2005-07-28 Alps Electric Co Ltd Patch antenna
CN209487711U (en) * 2019-04-23 2019-10-11 南京林业大学 A kind of microstrip antenna of fluting punching double frequency
WO2021088712A1 (en) * 2019-11-05 2021-05-14 RealMe重庆移动通信有限公司 Antenna radiator, antenna assembly, and electronic device
CN114914666A (en) * 2021-02-10 2022-08-16 华为技术有限公司 Antenna and electronic equipment

Also Published As

Publication number Publication date
CN117673732A (en) 2024-03-08

Similar Documents

Publication Publication Date Title
US10219389B2 (en) Electronic device having millimeter wave antennas
US7324049B2 (en) Miniaturized ultra-wideband microstrip antenna
CN102299418B (en) Multilayer broadband microstrip antenna
US20070200769A1 (en) Broadband antenna unit comprising a ground plate having a lower portion where both side corner portions are deleted
US9124007B2 (en) Antenna apparatus and radio terminal apparatus
EP1786064A1 (en) Planar antenna apparatus for ultra wide band applications
US10074905B2 (en) Planar antenna apparatus and method
WO2021238347A1 (en) Antenna and electronic device
EP4156411A1 (en) Millimeter wave antenna module and electronic device
EP2541678B1 (en) Mobile communication antenna device and mobile communication terminal device
US8242961B2 (en) UWB antenna and portable wireless communication device using the same
WO2022199321A1 (en) Electronic device
US9419338B2 (en) Antenna apparatus
EP4266497A1 (en) Electronic device
EP2043195A1 (en) Broadband antenna unit comprising a folded plate-shaped monopole antenna portion and two conductive elements
US20230420848A1 (en) Tightly coupled array antenna and network device
CN211350966U (en) Ultralow-profile dual-frequency UWB antenna and communication equipment
CN103825091A (en) Ultra-wideband directional antenna
US6788265B2 (en) Antenna element
US20070241981A1 (en) Wideband Antenna with Omni-Directional Radiation
CN106415927B (en) Signal radiation device in transmission device
CN112736439A (en) Antenna, antenna module and electronic equipment
WO2024041138A1 (en) Antenna module, positioning system and electronic device
CN109346822B (en) Dual-radiation-arm WIFI antenna
WO2024066679A1 (en) Antenna assembly and electronic device

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23856230

Country of ref document: EP

Kind code of ref document: A1