WO2023186032A1 - 超带宽天线阵列及电子设备 - Google Patents

超带宽天线阵列及电子设备 Download PDF

Info

Publication number
WO2023186032A1
WO2023186032A1 PCT/CN2023/085196 CN2023085196W WO2023186032A1 WO 2023186032 A1 WO2023186032 A1 WO 2023186032A1 CN 2023085196 W CN2023085196 W CN 2023085196W WO 2023186032 A1 WO2023186032 A1 WO 2023186032A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna unit
antenna
ultra
bandwidth
unit
Prior art date
Application number
PCT/CN2023/085196
Other languages
English (en)
French (fr)
Inventor
王义金
杨万年
简宪静
谢盛旭
Original Assignee
维沃移动通信有限公司
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 维沃移动通信有限公司 filed Critical 维沃移动通信有限公司
Publication of WO2023186032A1 publication Critical patent/WO2023186032A1/zh

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • This application belongs to the technical field of electronic products, and specifically relates to an ultra-bandwidth antenna array and electronic equipment.
  • Ultra-wideband (UWB) technology is used to achieve this function. If this technology needs to obtain a good experience, the performance of the antenna must be proposed. met higher requirements. Including the antenna's high bandwidth, stable phase characteristics, stable group delay (Group Delay) in spatial angle, good response characteristics fidelity factor (Fidelity Factor), etc. In order to obtain the above-mentioned better characteristics, it is not only necessary to design a specific antenna, but also need a reasonable layout, and the characteristics of the antenna's material and process also need to be considered.
  • the positioning antenna includes three antennas (Antenna V (Antenna V, Ant.V), Antenna H (Antenna H, Antenna H, Antenna V) in Figure 1 Ant.H) and antenna Com (Antenna Com, Ant.Com)), have positioning and ranging functions.
  • the 4th antenna ( 4th Antenna, 4th Ant) in Figure 1 has the ranging function.
  • the Ant.Com. and 4th antennas among the positioning antennas have the ability to transmit and receive signals.
  • the three positioning antennas are often designed using half-wavelength patch antennas, and their phase centers are generally not much different from the geometric center positions (m1 is the phase center in Figure 2, and m2 is the feed point), and in order to obtain better angle measurement accuracy, the spacing of the antennas generally needs to be close to half a wavelength, that is, the phase center spacing is close to half a wavelength, making the size of the antenna larger and the spacing between the antennas larger; on the other hand, UWB Multiple antennas of the antenna are set to support two frequency bands, Channel5 and Channel9, which makes the entire antenna system occupy a larger antenna space.
  • the antenna space left for UWB is smaller. Therefore, the existing UWB antenna solution is The space is large and often cannot be installed in the terminal.
  • the purpose of the embodiments of the present application is to provide an ultra-bandwidth antenna array and electronic equipment that can solve the problem that the existing ultra-bandwidth antenna array occupies a large space.
  • embodiments of the present application provide an ultra-bandwidth antenna array, including: a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit; wherein the fourth antenna unit is disposed on the first antenna between the antenna unit and the third antenna unit; or, the fourth antenna unit is provided between the second antenna unit and the third antenna unit; and the first distance and the second distance are less than the third distance; wherein, the first distance is The distance between the first antenna unit and the third antenna unit, the second distance is the distance between the second antenna unit and the third antenna unit, the third distance is the The distance between the first antenna unit and the second antenna unit; the first antenna unit, the second antenna unit and the third antenna unit support the first working frequency band, the fourth antenna unit supports the second working frequency band; and the first working The frequency band is different from the second operating frequency band; the phase center of the first antenna unit, the second antenna unit and the third antenna unit deviates from the geometric center.
  • embodiments of the present application provide an electronic device, including: the ultra-bandwidth antenna array described in the first aspect.
  • the ultra-bandwidth antenna array includes: a first antenna unit, a second antenna unit, a third antenna unit and a fourth antenna unit; and the first distance between the first antenna unit and the third antenna unit, and the second distance between the second antenna unit and the third antenna unit are both smaller than the third distance between the first antenna unit and the second antenna unit. Further, the fourth antenna unit is disposed adjacent to the first antenna unit.
  • the fourth antenna unit is provided between the adjacent second antenna unit and the third antenna unit; the first antenna unit and the second antenna unit and the third antenna unit supports the first operating frequency band, and the fourth antenna unit supports the second operating frequency band; and the first operating frequency band is different from the second operating frequency band; due to the phases of the first antenna unit, the second antenna unit and the third antenna unit
  • the center deviates from the geometric center. Therefore, the setting positions of the first antenna unit, the second antenna unit and the third antenna unit can be reasonably adjusted according to the internal environment of the electronic device, so that the phase center distance between the two antenna units can be smaller than the geometric center.
  • the spacing allows the two antenna units to be arranged more closely, thereby ensuring better antenna performance of the ultra-bandwidth antenna array and reducing the space occupied by the ultra-bandwidth antenna array. And by arranging the fourth antenna unit between the adjacent first antenna unit and the third antenna unit; or, arranging the fourth antenna unit between the adjacent second antenna unit. Between the element and the third antenna unit, it is possible to reduce the space occupied by the ultra-bandwidth antenna array and at the same time enable the ultra-bandwidth antenna array to have ranging capabilities and better angle measurement accuracy.
  • Figure 1 shows a schematic diagram of angle measurement
  • Figure 2 shows a schematic diagram of a half-wavelength patch antenna
  • Figure 3 shows the schematic diagram of UWB radio frequency architecture
  • Figure 4 shows one of the structural schematic diagrams of the ultra-bandwidth antenna array according to the embodiment of the present application
  • Figure 5 shows the second structural schematic diagram of the ultra-bandwidth antenna array according to the embodiment of the present application.
  • Figure 6 shows the third structural schematic diagram of the ultra-bandwidth antenna array according to the embodiment of the present application.
  • Figure 7 shows the fourth structural schematic diagram of the ultra-bandwidth antenna array according to the embodiment of the present application.
  • Figure 8 shows the fifth structural schematic diagram of the ultra-bandwidth antenna array according to the embodiment of the present application.
  • Figure 9 shows the sixth structural schematic diagram of the ultra-bandwidth antenna array according to the embodiment of the present application.
  • Figure 10 shows a schematic diagram of a planar inverted F antenna according to an embodiment of the present application.
  • Figure 11 shows one of the structural schematic diagrams of the electronic device according to the embodiment of the present application.
  • Figure 12 shows the second structural schematic diagram of the electronic device according to the embodiment of the present application.
  • Figure 13 shows the third structural schematic diagram of the electronic device according to the embodiment of the present application.
  • FIG. 14 shows a schematic diagram of the motherboard bracket according to the embodiment of the present application.
  • Figure 15 shows the fourth structural schematic diagram of the electronic device according to the embodiment of the present application.
  • FIG. 16 shows the fifth structural schematic diagram of the electronic device according to the embodiment of the present application.
  • the angle measurement function is based on the Angle of Arrival (AOA) principle.
  • AOA is calculated by the Phase Difference of Arrival (PDOA).
  • PDOA Phase Difference of Arrival
  • the phase difference of PDOA is calculated by the following formula:
  • phase difference is the phase difference
  • d is the electrical spacing of the antenna (that is, the phase center spacing)
  • ⁇ is the operating wavelength
  • ⁇ is the angle of the incoming wave.
  • the UWB antenna calculates the incoming wave angle ⁇ through the phase difference of the arriving signals of the two antenna units with a distance of d.
  • a suitable electrical spacing that is, the phase center spacing
  • This embodiment of the present application provides an ultra-bandwidth antenna array, including: a first antenna unit 17a1, a second antenna unit 17a2, a third antenna unit 17a3 and a fourth antenna unit 17a4; the fourth antenna The unit 17a4 is disposed between the adjacent first antenna unit 17a1 and the third antenna unit 17a3; or the fourth antenna unit 17a4 is disposed between the adjacent second antenna unit 17a2 and the third antenna unit 17a3; and the first The distance and the second distance are less than the third distance; wherein the first distance is between the first antenna unit 17a1 and the third antenna unit 17a3 The second distance is the distance between the second antenna unit 17a2 and the third antenna unit 17a3, and the third distance is the distance between the first antenna unit 17a1 and the second antenna The distance between units 17a2; the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 support the first operating frequency band, and the fourth antenna unit 17a4 supports the second operating frequency band; and the first operating frequency band
  • the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 are distributed in an L shape, and the third antenna unit 17a3 is adjacent to the first antenna unit 17a1 and the second antenna unit 17a2 respectively.
  • the first working frequency band is Channel 9, which can be used for angle measurement and ranging
  • the second working frequency band is Channel 5, which can be used for ranging.
  • the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit 17a3 and the fourth antenna unit are the radiation structures of the 17a4 ultra-bandwidth antenna array.
  • the first antenna unit 17a1 and the third antenna unit 17a3 are distributed along the first direction for vertical positioning;
  • the second antenna unit 17a2 and the third antenna unit 17a3 are distributed along the second direction for horizontal positioning;
  • the first The direction and the second direction are perpendicular to each other, so that the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 are distributed in a substantially L-shape.
  • phase center of each of the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 is deviated from one side of the antenna geometric center.
  • the phase center distance between the two antenna units is smaller than the geometric center distance, so that the two antenna units are arranged more closely, thereby ensuring that the ultra-bandwidth antenna array has good angle measurement accuracy while reducing the ultra-bandwidth antenna array. of occupied space.
  • the fourth antenna unit 17a4 for ranging is provided between the adjacent first antenna unit 17a1 and the third antenna unit 17a3; or, it is provided between the adjacent second antenna unit 17a2 and the third antenna unit 17a2.
  • the fourth antenna unit that supports ranging will be placed in the gap between the three positioning antennas, making full use of the space of the three positioning antennas. In this way, the area occupied by the antenna array can be greatly reduced while using The UWB antenna supports both positioning and ranging functions, and allows the feed signal line of the entire ultra-bandwidth antenna array to have a higher degree of routing freedom. That is to say, by arranging the fourth antenna unit that supports ranging in the gap between the three positioning antennas, it can accommodate more antenna frequency bands and adapt to more applications without increasing the size of the antenna or changing the radio frequency architecture. Scenes.
  • the first antenna unit 17a1 has a first opening slot 17h1
  • the second antenna unit 17a2 has a second opening slot 17h2
  • the third antenna unit 17a3 has a third opening slot 17h3
  • the first antenna unit 17a1 has a third opening slot 17h2.
  • a phase center 17g1 is located at one end of the first open slot 17h1
  • a second phase center 17g2 of the second antenna unit 17a2 is located at one end of the second open slot 17h2
  • a third phase center of the third antenna unit 17a3 is located.
  • the center 17g3 is located at the end of the third open groove 17h3 where the groove bottom is located.
  • the first open slot 17h1, the second open slot 17h2 and the third open slot 17h3 are used to radiate electromagnetic waves to the outside.
  • the first opening slot 17h1, the second opening slot 17h2 and the third opening slot 17h3 are in a horizontal "U" shape, and each antenna unit The phase center is close to the "U" bottom end of the "U” shaped open slot and away from the closed end of the antenna unit.
  • the opening direction of the antenna is related to the polarization direction of the antenna unit.
  • the polarization direction of the antenna unit is set to be horizontal, so the first opening slot 17h1, the second opening slot 17h2 and the third opening slot 17h3 It is in the shape of a "U" placed horizontally.
  • it may not be limited to the horizontal direction according to different applications.
  • the first opening slot 17h1, the second opening slot 17h2, and the third opening slot 17h3 are in a longitudinal "U" shape.
  • the phase center distance between at least two of the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 is greater than the geometric center distance.
  • phase center distance between the adjacent first antenna unit 17a1 and the third antenna unit 17a3 is greater than the geometric center distance, and/or the phase center distance between the adjacent second antenna unit 17a2 and the third antenna unit 17a3
  • the spacing is greater than the geometric center spacing.
  • the opening directions of the second opening groove 17h2 and the third opening groove 17h3 are opposite.
  • the opening direction of the first opening groove 17h1 is not limited.
  • the opening directions of the first opening groove 17h1 and the third opening groove 17h3 are the same, and the opening directions of the second opening groove 17h2 and the third opening groove 17h3 are in the same direction.
  • the phase center distance between the first antenna unit 17a1 and the third antenna unit 17a3 is C
  • the geometric center distance is B
  • the phase center distance is larger than the geometric center distance.
  • the opening directions of the first opening groove 17h1 and the third opening groove 17h3 are opposite.
  • the opening direction of the second opening groove 17h2 is not limited.
  • the opening directions of the first opening groove 17h1 and the third opening groove 17h3 are opposite, and the opening directions of the second opening groove 17h2 and the third opening groove 17h3 are opposite. In this way, the first opening groove 17h1 and the third opening groove 17h3 have opening directions opposite to each other.
  • the phase center distance between the antenna unit 17a1 and the third antenna unit 17a3 is larger than the geometric center distance, and the phase centers of the second antenna unit 17a2 and the third antenna unit 17a3 are misaligned, so that the second antenna unit 17a2 and the third antenna unit 17a3 are misaligned.
  • the phase center distance between 17a3 is larger than the geometric center distance.
  • the combinations of the opening orientations of the antenna units in the UWB antenna array are listed above, but the combination method is not limited to the above examples. According to the combination method, there are many combination methods, such that the phase centers of at least two antenna units are separated from each other. The farthest, and the opening direction of the other antenna unit is not restricted.
  • phase center spacing is larger than the geometric center spacing, it is possible to reduce the geometric center spacing between the two antennas while ensuring that the phase center spacing between the antenna units is close to one-half wavelength. In this way, it is possible to The physical size of the antenna is greatly reduced, and better PDOA characteristics can be obtained, that is, better angle measurement performance can be obtained.
  • the first antenna unit 17a1, the second antenna unit 17a2, and the third antenna unit 17a3 are respectively Planar Inverted F-shaped Antenna (PIFA) antennas radiating in a quarter-wave mode.
  • PIFA Planar Inverted F-shaped Antenna
  • the phase center of the PIFA antenna is on the side of the open slot of the antenna, as shown in Figure 10.
  • m3 is the feed point of the PIFA antenna
  • m2 is the feed point of the PIFA antenna
  • m1 is the phase center of the PIFA antenna
  • the phase center of the PIFA antenna deviates One side of the geometric center of the antenna, and the size of the PIFA antenna is approximately equal to one-quarter wavelength ( ⁇ /4). In this way, the size of each antenna unit is reduced by half compared with a half-wave patch antenna.
  • the PIFA antenna as the antenna unit of the ultra-bandwidth antenna array, it is possible to reduce the ultra-bandwidth While reducing the area of the antenna array, a larger phase center distance is obtained with a smaller physical size, which ensures that the ultra-bandwidth antenna array has better antenna performance and better angle measurement accuracy.
  • the opening directions of the first opening groove 17h1, the second opening groove 17h2 and the third opening groove 17h3 can be set to be the same.
  • the opening directions of the first opening slot 17h1, the second opening slot 17h2 and the third opening slot 17h3 are set to the same direction.
  • the first opening slot can be The openings of 17h1, the second opening slot 17h2 and the third opening slot 17h3 are oriented away from the side where the camera module is located, so that the first phase center 17h1 corresponding to the first antenna unit 17a1 and the second phase corresponding to the second antenna unit 17a2
  • the center 17h2 and the third phase center 17h3 corresponding to the third antenna unit 17a3 are away from the camera module, thereby reducing the influence of the antenna unit by the camera module.
  • the above embodiment illustrates the optimal embodiment of the relationship between the phase center of the first antenna unit 17a1, the second antenna unit 17a2 and the third antenna unit 17a3 and the camera module and other devices that have a great impact on the antenna performance.
  • the phase center of two of the three antenna units can be moved away from the camera module, and the opening slot of the other antenna unit can be oriented at various rotation angles such as up, down, left, and right.
  • the antenna array includes a first structural layer L1, a second structural layer L2, and a third structural layer L3 that are stacked in sequence;
  • the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit 17a3 and the fourth antenna unit 17a4 are provided on the first structural layer L1;
  • the feed signal lines of the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit 17a3 and the fourth antenna unit 17a4 are provided on the second structural layer L2, and the first antenna unit 17a1, the second antenna unit 17a2, the The orthographic projection positions of the three antenna units 17a3 and the fourth antenna unit 17a4 on the second structural layer L2 are set to clear space;
  • a reference metal ground is provided on the third structural layer L3.
  • the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit 17a3 and the fourth antenna unit 17a4 are provided on the first structural layer L1; the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit The feed signal lines of the unit 17a3 and the fourth antenna unit 17a4 are provided on the second structural layer L2, and the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit and the fourth antenna unit 17a4 are arranged on the second structural layer L2.
  • the orthographic projection position on is set as a clear space; the third structural layer L3 is provided with a reference metal ground.
  • the ultra-bandwidth antenna array is made of a flexible circuit board, which can use liquid crystal polymer (Liquid Crystal Polymer, LCP), polyimide (Modified Polyimide, MPI), polyimide (Polyimide, PI) ) and other materials are used to form the circuit of the antenna through processes such as copper plating.
  • the flexible circuit board is arranged into three layers of wiring, namely the first structural layer L1, the second structural layer L2 and the third structural layer L3.
  • the first structural layer L1 is used to set the radiation structure of the antenna, and the second structural layer L2 is provided with the feed signal line of the antenna, and the third structural layer L3 is provided with a complete reference metal ground 17d.
  • FIG 4 it shows a complete flexible circuit board, and as shown in Figures 5 to 7, they respectively show the first structural layer L1, L1, The second structural layer L2 and the third structural layer L3.
  • the radiation structure provided in the first structural layer L1 includes: a first antenna unit 17a1, a second antenna Unit 17a2, third antenna unit 17a3 and fourth antenna unit 17a4, and the first antenna unit 17a1 is provided with a first feed contact point 17b1, the second antenna unit 17a2 is provided with a second feed contact point 17b2, and the third antenna unit 17a3 is provided with a third feed contact point 17b3, and the fourth antenna unit 17a4 is provided with a fourth feed contact point 17b4.
  • the closed end of the first antenna unit 17a1 is provided with a plurality of first ground holes 17c1
  • the closed end of the second antenna unit 17a2 is provided with a plurality of second ground holes 17c2
  • the closed end of the third antenna unit 17a3 is provided with a plurality of third ground holes 17c1.
  • the antenna size A is approximately equal to a quarter of the wavelength of the antenna's operating frequency. Compared with the half-wavelength patch antenna, the size is reduced by about half.
  • the second structural layer L2 includes a first feed signal line 17e1 of the first antenna unit 17a1, a second feed signal line 17e2 of the second antenna unit 17a2, and a third feed line of the third antenna unit 17a3.
  • the signal line 17e3; and the peripheral area of each feed signal line is provided with a metal ground 17d; each antenna unit is in the orthographic projection area of the second structural layer L2 (the first area 17i1, the second area 17i2, the third area in Figure 5 17i3, the fourth area 17i4) is provided with clearance, and the corresponding metal layer is peeled off.
  • the third antenna unit 17a3 and the fourth antenna unit 17a4 share a third feed signal line 17e3.
  • the third feed signal line 17e3 is divided into two at the end of the signal line, and is connected to the corresponding antenna unit through the third feed contact point 17b3 and the fourth feed contact point 17b4 respectively.
  • a combiner or radio frequency switch can also be added at the radio frequency architecture end to integrate the feed signal lines of the third antenna unit 17a3 and the fourth antenna unit 17a4 and connect them to the UWB chip ( Integrated Circuit, IC).
  • UWB chip Integrated Circuit, IC
  • the third structural layer L3 is provided with a complete reference metal ground 17d, which is used to restrain the impedance of the feed signal line and serves as the ground of the antenna unit.
  • the third structural layer L3 is also provided with a BTB connector 20 connected to the motherboard. Connected contact point 17f.
  • first feed signal line 17e1 is connected to the first feed contact point 17b1
  • second feed signal line 17e2 is connected to the second feed contact point 17b2
  • third feed signal line 17e3 is connected to The third feed contact point 17b3
  • the connection method is a perforated copper-plated connection between two adjacent layers.
  • the metal ground layers of the first structural layer L1, the second structural layer L2 and the third structural layer L3 are connected through a plurality of through-hole copper plating.
  • the fourth antenna unit 17a4 is a half-wavelength patch antenna, or the fourth antenna unit is a planar inverted F antenna that radiates in a quarter-wave mode.
  • the fourth antenna unit 17a4 is a half-wavelength patch antenna and is disposed between the first antenna unit 17a1 and the third antenna unit 17a3 .
  • the fourth antenna unit is a PIFA antenna that radiates in a quarter-wave mode, and is disposed between the first antenna unit 17a1 and the third antenna unit 17a3 .
  • the fourth antenna unit 17a4 is a PIFA antenna that radiates in a quarter-wave mode, and is disposed between the second antenna unit 17a2 and the third antenna unit 17a3.
  • the feed signal line of the fourth antenna unit 17a4 is in the second structural layer L2, which is not shown in Figure 9.
  • the fourth antenna unit in the above embodiment only has a ranging function, so the fourth antenna unit There are no limitations on the antenna type or polarization direction.
  • the antenna types in the above embodiments are only examples and are not limited thereto.
  • a metal ground is provided between adjacent two antenna units among the first antenna unit 17a1, the second antenna unit 17a2, the third antenna unit 17a3 and the fourth antenna unit 17a4.
  • a metal ground 17d is provided between two adjacent antenna units, which can improve the isolation between two adjacent antenna units.
  • an embodiment of the present application also provides an electronic device 10, including: the ultra-bandwidth antenna array 17 as described above.
  • electronic devices include but are not limited to mobile phones, tablet computers, notebook computers, PDAs, vehicle-mounted terminal equipment, wearable devices, and pedometers.
  • Electronic devices may be provided with wireless communication circuitry that may be used to support wireless communication in multiple wireless communication frequency bands.
  • Communication bands (sometimes referred to herein as frequency bands) processed by wireless communication circuits may include satellite navigation system communication bands, cellular telephone communication bands, wireless local area network communication bands, near field communication bands, ultra-wideband communication bands, or other wireless communication bands .
  • the electronic device 10 may have a display, and the display 11 may be installed on the front of the electronic device 10 , as shown in FIG. 11 .
  • Display 11 may be a touch screen incorporating capacitive touch electrodes or may be touch-insensitive.
  • the electronic device 10 may include a housing, such as the rear housing 12 in Figures 10 to 11, and a middle housing 13 disposed between the rear housing 12 and the display 11.
  • the middle housing 13 may be made of metal, and a plurality of breakers may be provided on the middle housing 13. Point 15.
  • the electronic device 10 further includes: a camera module
  • the openings of the first opening slot 17h1 of the first antenna unit 17a1, the second opening slot 17h2 of the second antenna unit 17a2, and the third opening slot 17h3 of the third antenna unit 17a3 of the ultra-bandwidth antenna array are in the same direction , the opening faces away from the side where the camera module is located.
  • a plurality of camera modules 14 are provided directly below the rear case 12 , and the openings of the antenna units of the ultra-bandwidth antenna array 17 are oriented away from the camera module, that is, the phase center is away from the camera module. module to avoid the impact of the camera module on the antenna performance.
  • the electronic device 10 further includes: a casing and a motherboard disposed in the casing;
  • An antenna chip is provided on the main board 18 , and the ultra-bandwidth antenna array 17 is electrically connected to the antenna chip.
  • a motherboard bracket 16 is provided directly below the rear case 12.
  • the above-mentioned ultra-bandwidth antenna array 17 is provided on the motherboard bracket 16.
  • the motherboard bracket 16 can be made of metal.
  • An opening 160 is provided in the middle area to facilitate the UWB antenna to pass through the opening 160 for electrical connection with the mainboard 18.
  • a plurality of screw holes 161, 162, 163, 164 are provided in the peripheral area of the ultra-bandwidth antenna array 17. The screw holes use screws.
  • the mainboard bracket 16 and the mainboard are fixedly connected and grounded to facilitate the installation of the UWB antenna array.
  • the mainboard 18 is provided directly above the middle case 13 (ie, below the mainboard bracket 16), and a shielding cover 19 is provided on the mainboard 18.
  • One side of cover 19 is provided with BTB connector 20; the motherboard is provided with a UWB chip, and the BTB connector 20 is used to connect the UWB chip on the motherboard to each antenna unit in the UWB antenna array.
  • the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation.
  • the technical solution of the present application can be embodied in the form of a software product in essence or that contributes to the existing technology.
  • the computer software product is stored in a storage medium (such as ROM/RAM, disk, CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

本申请公开了一种超带宽天线阵列及电子设备，属于电子产品技术领域。超带宽天线阵列包括：第一天线单元、第二天线单元、第三天线单元和第四天线单元；第四天线单元设置在第一天线单元与第三天线单元之间；或者第四天线单元设置在第二天线单元与第三天线单元之间；第一天线单元与第三天线单元之间的第一距离，以及第二天线单元与第三天线单元之间的第二距离，均小于第一天线单元与第二天线单元之间的第三距离；第一天线单元、第二天线单元和第三天线单元支持第一工作频段，第四天线单元支持第二工作频段；且第一工作频段与第二工作频段不同；第一天线单元、第二天线单元和第三天线单元的相位中心偏离几何中心。

Description

超带宽天线阵列及电子设备
相关申请的交叉引用
本申请主张在2022年4月1日在中国提交的中国专利申请No.202210347400.4的优先权，其全部内容通过引用包含于此。
技术领域
本申请属于电子产品技术领域，具体涉及一种超带宽天线阵列及电子设备。
背景技术
随着第五代移动通信技术(5th Generation Mobile Communication Technology，5G)的发展，万物互联的时代即将到来，用户对电子设备的功能要求越来越多，便捷性，智能化提出了更高的要求。其中一个重要的应用室内定位、寻物等引入到电子设备中，实现这一功能用到超宽带(Ultra Wide Band，UWB)技术，该技术若需要获得很好的体验效果，对天线的性能提出了较高的要求。包括天线的高带宽、稳定的相位特性、空间角度上稳定的群延时(Group Delay)、良好的响应特性保真度因数(Fidelity Factor)等。为获得上述较好的特性，不仅仅需要设计特定的天线，还得需要合理的设置布局，以及天线的材料工艺的特性也需要一并考虑。
基于UWB的应用场景及生态布局，一些联盟组织对UWB的性能和参数做了一些要求，如强制要求支持频段9(Channel9)，该Channel9需要具有测距和测角能力；或者，需要要求UWB设备支持频段5(Channel5)和Channel9，该Channel5则需要支持测距能力即可。
目前，常用的UWB射频架构原理图如图1所示，包含四支UWB天线，其中定位天线包含三支天线(图1中的天线V(Antenna V，Ant.V)、天线H(Antenna H，Ant.H)和天线Com(Antenna Com，Ant.Com))，具备定位和测距功能，图1中的4th天线(4th Antenna，4th Ant)具备测距功能。其中，定位天线中的Ant.Com.和4th天线具有发射和接收信号的能力。
一方面，现有UWB天线方案中，三支定位天线常采用半波长的贴片天线来设计，其相位中心一般与几何中心位置相差不大(如图2中m1为相位中心，m2为馈电点)，而为了获得较好的测角精度，天线的间距设置一般需要接近半波长，即是相位中心间距接近半波长，使得天线的尺寸较大，天线间距也较大；另一方面，UWB天线的多支天线均设置支持Channel5和Channel9两个频段，这样使得整个天线的系统占用的天线空间较大。但是，由于终端内的摄像头模组的数量和占据空间的增加，以及蜂窝天线或非蜂窝天线数量和占据空间增加，导致留给UWB的天线空间较小，因此，现有的UWB天线方案因占用 空间较大，常常不能设置于终端内。
发明内容
本申请实施例的目的是提供一种超带宽天线阵列及电子设备，能够解决现有的超带宽天线阵列占用空间较大的问题。
为了解决上述技术问题，本申请是这样实现的：
第一方面，本申请实施例提供了一种超带宽天线阵列，包括：第一天线单元、第二天线单元、第三天线单元和第四天线单元；其中，第四天线单元设置在第一天线单元与第三天线单元之间；或者，第四天线单元设置在第二天线单元与第三天线单元之间；且第一距离和第二距离小于第三距离；其中，所述第一距离为所述第一天线单元与所述第三天线单元之间的距离，所述第二距离为所述第二天线单元与所述第三天线单元之间的距离，所述第三距离为所述第一天线单元与所述第二天线单元之间的距离；第一天线单元、第二天线单元和第三天线单元支持第一工作频段，第四天线单元支持第二工作频段；且第一工作频段与第二工作频段不同；第一天线单元、第二天线单元和第三天线单元的相位中心偏离几何中心。
第二方面，本申请实施例提供了一种电子设备，包括：如第一方面所述的超带宽天线阵列。
在本申请实施例中，超带宽天线阵列包括：第一天线单元、第二天线单元、第三天线单元和第四天线单元；且第一天线单元与第三天线单元之间的第一距离，以及第二天线单元与第三天线单元之间的第二距离，均小于第一天线单元与第二天线单元之间的第三距离，进一步地，将第四天线单元设置在相邻的第一天线单元与所述第三天线单元之间；或者，所述第四天线单元设置在相邻的所述第二天线单元与所述第三天线单元之间；第一天线单元、第二天线单元和第三天线单元支持第一工作频段，第四天线单元支持第二工作频段；且第一工作频段与第二工作频段不同；由于第一天线单元、第二天线单元和第三天线单元的相位中心偏离几何中心，因此，可根据电子设备的内环境，合理调整第一天线单元、第二天线单元和第三天线单元的设置位置，能够使两个天线单元之间的相位中心间距小于几何中心间距，使两个天线单元排布更紧密，从而实现了在确保超带宽天线阵列具有较好的天线性能的同时，降低了超带宽天线阵列的占用空间。并且通过将第四天线单元设置在相邻的第一天线单元与第三天线单元之间；或者，将第四天线单元设置在相邻的第二天线单 元与第三天线单元之间，能够实现在降低超带宽天线阵列的占用空间的同时，使超带宽天线阵列具有测距能力和较好的测角精度。
附图说明
图1表示角度测量示意图；
图2表示半波长贴片天线的示意图；
图3表示UWB射频架构原理图；
图4表示本申请实施例的超带宽天线阵列的结构示意图之一；
图5表示本申请实施例的超带宽天线阵列的结构示意图之二；
图6表示本申请实施例的超带宽天线阵列的结构示意图之三；
图7表示本申请实施例的超带宽天线阵列的结构示意图之四；
图8表示本申请实施例的超带宽天线阵列的结构示意图之五；
图9表示本申请实施例的超带宽天线阵列的结构示意图之六；
图10表示本申请实施例的平面倒F天线的示意图；
图11表示本申请实施例的电子设备的结构示意图之一；
图12表示本申请实施例的电子设备的结构示意图之二；
图13表示本申请实施例的电子设备的结构示意图之三；
图14表示本申请实施例的主板支架的示意图；
图15表示本申请实施例的电子设备的结构示意图之四；
图16表示本申请实施例的电子设备的结构示意图之五。
附图标记说明：
10-电子设备；11-显示器；12-后壳；13-中壳；14-摄像模组；15-断点；16-主板支架；160-开口；161至164-螺丝孔；17-超带宽天线阵列；17a1-第一天线单元；17a2-第二天线单元；17a3-第三天线单元；17a4-第四天线单元；17b1-第一馈电接触点；17b2-第二馈电接触点；17b3-第三馈电接触点；17b4-第四馈电接触点；17c1-第一下地孔；17c2-第二下地孔；17c3-第三下地孔；17d-金属地；17e1-第一馈电信号线；17e2-第二馈电信号线；17e3-第三馈电信号线；17f-接触点；17g1-第一相位中心；17g2-第二相位中心；17g3-第三相位中心；17h1-第一开口槽；17h2-第二开口槽；17h3-第三开口槽；17i1-第一区域；17i2-第二区域；17i3-第三区域；17i4-第四区域；17f-接触点18-主板；19-屏蔽罩；20-板对板连接器 (Board-To-Board Connectors，BTB)；L1-第一结构层；L2-第二结构层；L3-第三结构层。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象，而不用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，说明书以及权利要求中“和/或”表示所连接对象的至少其中之一，字符“/”，一般表示前后关联对象是一种“或”的关系。
下面结合附图3，对应用UWB天线实现测角测距功能时，天线单元的相位中心间距接近半波长进行说明。
测角功能是基于到达角(Angle of Arrival，AOA)原理，AOA通过到达相位差(Phase Difference Of Arrival，PDOA)计算得来。理论上，PDOA的相位差由以下公式计算：
其中，是相位差，d是天线的电间距(即是相位中心间距)，λ是工作波长，θ是来波的角度。
具体地，的具体的推导过程如下：
首先，当被测物与终端的距离D大于几个波长时，D>>d，可以认为θ1＝θ2＝θ；其次，来波波前到达第一天线后，到达第二个天线就需要额外的距离d1＝dcosθ；因此，距离由此推导出：相位差
进一步得出，为了避免影响AOA的结果，必须小于180°，这样需要将d设置为d＜λ/2，其中，λ是工作频率对应的波长。
由上可知，UWB天线通过间距为d的两天线单元的到达信号的相位差来计算来波角度θ，根据上述测角原理可知，合适的电间距(即是相位中心间距)才能获得较好的测角精度。
下面结合附图，通过具体的实施例及其应用场景对本申请实施例提供的超带宽天线阵列进行详细地说明。
请参照图4至图10，本申请实施例提供了一种超带宽天线阵列，包括：第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4；第四天线单元17a4设置在相邻的第一天线单元17a1与第三天线单元17a3之间；或者，第四天线单元17a4设置在相邻的第二天线单元17a2与第三天线单元17a3之间；且第一距离和第二距离小于第三距离；其中，所述第一距离为所述第一天线单元17a1与所述第三天线单元17a3 之间的距离，所述第二距离为所述第二天线单元17a2与所述第三天线单元17a3之间的距离，所述第三距离为所述第一天线单元17a1与所述第二天线单元17a2之间的距离；第一天线单元17a1、第二天线单元17a2和第三天线单元17a3支持第一工作频段，第四天线单元17a4支持第二工作频段；且第一工作频段与第二工作频段不同；第一天线单元17a1、第二天线单元17a2和第三天线单元17a3的相位中心偏离几何中心。
其中，第一天线单元17a1、第二天线单元17a2和第三天线单元17a3呈L型分布，且第三天线单元17a3分别与第一天线单元17a1和第二天线单元17a2相邻。
可选地，第一工作频段为Channel9，能够用于测角和测距，第二工作频段为Channel5，能够用于测距。
该实施例中，第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元为17a4超带宽天线阵列的辐射结构。其中，第一天线单元17a1与第三天线单元17a3沿第一方向分布设置，用于垂直定位；第二天线单元17a2与第三天线单元17a3沿第二方向分布设置，用于水平定位；第一方向与第二方向互相垂直，使第一天线单元17a1、第二天线单元17a2和第三天线单元17a3大致呈L型分布。特别地，第一天线单元17a1、第二天线单元17a2和第三天线单元17a3中的每个天线单元的相位中心均偏离天线几何中心的一侧，这样，通过对三支天线进行合理设置，能够使两个天线单元之间的相位中心间距小于几何中心间距，使两个天线单元排布更紧密，从而实现了在确保超带宽天线阵列具有较好的测角精度的同时，降低超带宽天线阵列的占用空间。
与此同时，将用于测距第四天线单元17a4设置在相邻的第一天线单元17a1与第三天线单元17a3之间；或者，设置在相邻的第二天线单元17a2与第三天线单元17a3之间，即将支持测距的第四天线单元设置于三个定位天线的间隙内，能够充分利用三支定位天线的空间，如此，能够在实现天线阵列所占用的面积大幅缩减的同时，使UWB天线同时支持定位和测距功能，并使整个超带宽天线阵列的馈电信号线有更高的走线自由度。也即，通过将支持测距的第四天线单元设置于三个定位天线的间隙内，可在不增加天线体积，不改变射频架构的同时，兼顾更多的天线的频段，适应更多的应用场景。
在一实施例中，第一天线单元17a1具有第一开口槽17h1，第二天线单元17a2具有第二开口槽17h2，第三天线单元17a3具有第三开口槽17h3，且第一天线单元17a1的第一相位中心17g1位于第一开口槽17h1的槽底所在一端，第二天线单元17a2的第二相位中心17g2位于所述第二开口槽17h2的槽底所在一端，第三天线单元17a3的第三相位中心17g3位于第三开口槽17h3的槽底所在一端。
该实施例中，第一开口槽17h1、第二开口槽17h2和第三开口槽17h3用于对外辐射电磁波。
示例性地，如图4、图5、图8和图9所示，第一开口槽17h1、第二开口槽17h2和第三开口槽17h3呈横放的“U”型，且每个天线单元的相位中心靠近“U”型开口槽的“U”型底部一端，远离天线单元的闭合端。
需要说明的是，天线的开口朝向与天线单元的极化方向有关，上述示例中的天线单元的极化方向设置为水平，故第一开口槽17h1、第二开口槽17h2和第三开口槽17h3呈横向放置的“U”型。但是，根据不同的应用可不限于横向，如，在天线单元的极化方向为竖直时，第一开口槽17h1、第二开口槽17h2和第三开口槽17h3呈纵向放置的“U”型。
在一实施例中，第一天线单元17a1、第二天线单元17a2和第三天线单元17a3中的至少两个天线单元之间的相位中心间距大于几何中心间距。
即，相邻的第一天线单元17a1与第三天线单元17a3之间的相位中心间距大于几何中心间距，和/或，相邻的第二天线单元17a2与第三天线单元17a3之间的相位中心间距大于几何中心间距。
在一实施例中，第二开口槽17h2与所述第三开口槽17h3的开口朝向相反。第一开口槽17h1的开口朝向不做限制。
在一优选示例中，如图5所示，所述第一开口槽17h1与所述第三开口槽17h3的开口朝向相同，所述第二开口槽17h2与所述第三开口槽17h3的开口朝向相反，如此，第一天线单元17a1与第三天线单元17a3之间的相位中心间距为C，几何中心间距为B，相位中心间距较几何中心间距大。
在一实施例中，第一开口槽17h1与所述第三开口槽17h3的开口朝向相反。第二开口槽17h2的开口朝向不做限制。
在一优选示例中，所述第一开口槽17h1与所述第三开口槽17h3的开口朝向相反，所述第二开口槽17h2与所述第三开口槽17h3的开口朝向相反，如此，第一天线单元17a1与第三天线单元17a3之间的相位中心间距较几何中心间距大，而第二天线单元17a2与第三天线单元17a3的相位中心存在错位，实现第二天线单元17a2与第三天线单元17a3之间的相位中心间距较几何中心间距大。
需要指出的是，上述列举的UWB天线阵中天线单元的开口朝向的组合情况，但组合方式不限于以上示例，按照组合方式，存在多种组合方式，使得其中至少两个天线单元的相位中心相距最远，而另外一个天线单元的开口朝向不做限制。
上述实施例，由于相位中心间距较几何中心间距大，在保证天线单元之间的相位中心间隔接近二分之一波长的同时，可实现缩小两个天线之间的几何中心间距，如此，即能够大幅缩小天线的物理尺寸，而且还能获得较好PDOA特性，即是能获得较好的测角性能。
在一实施例中，第一天线单元17a1、第二天线单元17a2和第三天线单元17a3均分别为四分之一波模式辐射的平面倒F(Planar Inverted F-shaped Antenna，PIFA)天线。
PIFA天线的相位中心在天线的开口槽一侧，如图10所示，m3为PIFA天线的馈地点，m2为PIFA天线的馈电点，m1为PIFA天线的相位中心，PIFA天线的相位中心偏离天线几何中心的一侧，且PIFA天线的尺寸约等于四分之一波长(λ/4)。如此，各天线单元的尺寸缩小较半波的贴片天线缩小一半。
该实施例中，通过利用PIFA天线作为超带宽天线阵列的天线单元，能在降低超带宽 天线阵列的面积的同时，以较小的物理尺寸，获得较大相位中心间距，实现即确保超带宽天线阵列具有较好的天线性能，也具有较好的测角精度。
基于上一实施例，可设置第一开口槽17h1、第二开口槽17h2和第三开口槽17h3的开口朝向相同。
该实施例中，将第一开口槽17h1、第二开口槽17h2和第三开口槽17h3的开口朝向设置成相同，如此，在将超带宽天线阵列设置在终端内时，可使第一开口槽17h1、第二开口槽17h2和第三开口槽17h3的开口朝向与摄像模组所在一侧相背，使第一天线单元17a1对应的第一相位中心17h1、第二天线单元17a2对应的第二相位中心17h2，第三天线单元17a3对应的第三相位中心17h3远离摄像模组，从而降低天线单元受到摄像头模组的影响。
需要指出的是，上述实施例列举的是第一天线单元17a1、第二天线单元17a2和第三天线单元17a3的相位中心与摄像模组等对天线性能影响大的器件的关系的最优实施例。可以理解，可以将三个天线单元中的其中两个的相位中心远离摄像模组，另一个天线单元的开口槽朝向可以是上下左右等多种旋转角度都可行。
在一实施例中，天线阵列包括依次层叠设置的第一结构层L1、第二结构层L2和第三结构层L3；
其中，第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4设置于所述第一结构层L1；
第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4的馈电信号线设置于第二结构层L2，且第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4在第二结构层L2上的正投影位置设置为净空；
参考金属地设置于所述第三结构层L3。
其中，第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4设置于所述第一结构层L1；第一天线单元17a1、第二天线单元17a2、第三天线单元17a3和第四天线单元17a4的馈电信号线设置于第二结构层L2，且第一天线单元17a1、第二天线单元17a2、第三天线单元和第四天线单元17a4在第二结构层L2上的正投影位置设置为净空；所述第三结构层L3设有参考金属地。
该实施例中，超带宽天线阵列由柔性电路板制成，可以利用液晶高分子聚合物(Liquid Crystal Polymer，LCP)、聚酰亚胺(Modified Polyimide，MPI)、聚酰亚胺(Polyimide，PI)等材料经过镀铜等工艺形成天线的线路。具体地，柔性电路板设置成三层走线，分别是第一结构层L1、第二结构层L2和第三结构层L3，第一结构层L1用于设置天线的辐射结构，第二结构层L2设置天线的馈电信号线，第三结构层L3设置完整的参考金属地17d。
示例性地，如图4所示，其示出的是一个完整的柔性电路板，如图5至7所示，其分别示出的是从上到下依次层叠设置的第一结构层L1、第二结构层L2和第三结构层L3。
如图4和5中，第一结构层L1中设有辐射结构包括：第一天线单元17a1、第二天线 单元17a2、第三天线单元17a3和第四天线单元17a4，且第一天线单元17a1设置有第一馈电接触点17b1、第二天线单元17a2设有第二馈电接触点17b2、第三天线单元17a3设有第三馈电接触点17b3，第四天线单元17a4设有第四馈电接触点17b4。
具体地，第一天线单元17a1的闭合端设置多个第一下地孔17c1、第二天线单元17a2的闭合端设置多个第二下地孔17c2、第三天线单元17a3的闭合端设置多个第三下地孔17c3，这样每个天线单元相当于一个PIFA天线，天线尺寸A约等于天线工作频率的四分之一波长，相较于半波长的贴片天线尺寸缩小约一半。
如图6中，第二结构层L2中包括第一天线单元17a1的第一馈电信号线17e1、第二天线单元17a2的第二馈电信号线17e2、第三天线单元17a3的第三馈电信号线17e3；且各个馈电信号线的周边区域设置金属地17d；各个天线单元在第二结构层L2的正投影区域(如图5中的第一区域17i1、第二区域17i2、第三区域17i3、第四区域17i4)设置净空，相应的金属层剥离。
作为一种实现方式，第三天线单元17a3和第四天线单元17a4共第三馈电信号线17e3。如图5所示，第三馈电信号线17e3在信号线的末端一分为二，分别通过第三馈电接触点17b3和第四馈电接触点17b4与相应的天线单元连接。
作为另一种实现方式，也可以在射频架构端增加合路器或射频开关，来将上述第三天线单元17a3和第四天线单元17a4的馈电信号线整合在一起接入到UWB的芯片(Integrated Circuit，IC)内。
如图6所示，第三结构层L3设置完整的参考金属地17d，用来束缚馈电信号线的阻抗，同时作为天线单元的地，第三结构层L3同时设置有与主板BTB连接器20相连的接触点17f。
还需要说明的是，上述的第一馈电信号线17e1与第一馈电接触点17b1连接，第二馈电信号线17e2与第二馈电接触点17b2连接，第三馈电信号线17e3与第三馈电接触点17b3连接，连接方式均为相邻两层打孔镀铜连接。上述第一结构层L1、第二结构层L2和第三结构层L3的金属地层通过多个通孔镀铜连接。
在一实施例中，所述第四天线单元17a4为半波长的贴片天线，或者所述第四天线单元为四分之一波模式辐射的平面倒F天线。
示例性地，如图5所示，第四天线单元17a4为半波长的贴片天线，且设置于第一天线单元17a1和第三天线单元17a3之间。
示例性地，如图8所示，第四天线单元为四分之一波模式辐射的PIFA天线，且设置于第一天线单元17a1和第三天线单元17a3之间。
示例性地，如图9所示，第四天线单元17a4为四分之一波模式辐射的PIFA天线，且设置于第二天线单元17a2和第三天线单元17a3之间。图9中，第四天线单元17a4的馈电信号线在第二结构层L2中，图9未示出。
需要说明的是，上述实施例中的第四天线单元仅测距功能即可，因此第四天线单元的 天线类型和极化方向都不会做限制，上述实施例中的天线类型仅是示例性的，并不以此为限。
在一实施例中，所述第一天线单元17a1、所述第二天线单元17a2、第三天线单元17a3和所述第四天线单元17a4中的相邻两个天线单元之间设置有金属地。
该实施例中，相邻两个天线单元之间设置有金属地17d，能够提升相邻两个天线单元间的隔离度。
请参照图11至图16，本申请实施例还提供了一种电子设备10，包括：如上所述的超带宽天线阵列17。
其中，电子设备包括但不限于手机、平板电脑、笔记本电脑、掌上电脑、车载终端设备、可穿戴设备、以及计步器等。
电子设备可设置有无线通信电路，无线通信电路可用于支撑多个无线通信频带中的无线通信。由无线通信电路处理的通信频带(在本文中有时被称为频带)可包括卫星导航系统通信频带、蜂窝电话通信频带、无线局域网通信频带、近场通信频带、超宽带通信频带或其他无线通信频带。
示例性地，如图11至13所示，电子设备10可具有显示器，显示器11可被安装在电子设备10的正面上，如图11所示。显示器11可以是结合电容式触摸电极的或者可对触摸不灵敏的触摸屏。电子设备10可包括壳体，如图10至11中的后壳12，以及在后壳12和显示器11之间设置中壳13，中壳13可为金属材质，中壳13上设置多个断点15。
在一实施例中，电子设备10还包括：摄像模组；
在所述超带宽天线阵列的第一天线单元17a1的第一开口槽17h1、第二天线单元17a2的第二开口槽17h2和第三天线单元17a3的第三开口槽17h3的开口朝向相同的情况下，所述开口朝向与所述摄像模组所在一侧相背。
示例性地，如图12至16所示，后壳12的正下方设置有多个摄像头模组14，超带宽天线阵列17的天线单元的开口朝向背离摄像模组，即，使相位中心远离摄像模组，避免摄像模组对天线性能的影响。
在一实施例中，电子设备10还包括：壳体和设置在所述壳体内的主板；
其中，所述主板18上设置有天线芯片，所述超带宽天线阵列17与所述天线芯片电连接。
如图13所示，在隐藏掉图11的后壳12后，后壳12的正下方设置有主板支架16，主板支架16上设置有上述超带宽天线阵列17，主板支架16可为金属材质，在其中间区域设置有开口160，便于UWB天线穿过开口160与主板18进行电连接，在超带宽天线阵列17的周边区域设置有多个螺丝孔161、162、163、164，螺丝孔使用螺丝将主板支架16与主板进行固定导通接地，便于UWB天线阵列的安装。
如图15和16所示，隐藏掉主板支架16后，可以看到在中壳13的正上方(即是主板支架16的下方)设置有主板18，主板18上设置有屏蔽罩19，在屏蔽罩19的一边设置有 BTB连接器20；所述主板内设置有UWB的芯片，BTB连接器20用于将主板上的UWB芯片与UWB天线阵列内的各个天线单元连接。
需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外，需要指出的是，本申请实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能，还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能，例如，可以按不同于所描述的次序来执行所描述的方法，并且还可以添加、省去、或组合各种步骤。另外，参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端(可以是手机，计算机，服务器，空调器，或者网络设备等)执行本申请各个实施例所述的方法。
上面结合附图对本申请的实施例进行了描述，但是本申请并不局限于上述的具体实施方式，上述的具体实施方式仅仅是示意性的，而不是限制性的，本领域的普通技术人员在本申请的启示下，在不脱离本申请宗旨和权利要求所保护的范围情况下，还可做出很多形式，均属于本申请的保护之内。

Claims (14)

  1. 一种超带宽天线阵列，包括：第一天线单元、第二天线单元、第三天线单元和第四天线单元；
    其中，所述第四天线单元设置在所述第一天线单元与所述第三天线单元之间；或者，所述第四天线单元设置在所述第二天线单元与所述第三天线单元之间；且第一距离和第二距离小于第三距离；其中，所述第一距离为所述第一天线单元与所述第三天线单元之间的距离，所述第二距离为所述第二天线单元与所述第三天线单元之间的距离，所述第三距离为所述第一天线单元与所述第二天线单元之间的距离；
    所述第一天线单元、所述第二天线单元和所述第三天线单元支持第一工作频段，所述第四天线单元支持第二工作频段；且所述第一工作频段与所述第二工作频段不同；
    所述第一天线单元、所述第二天线单元和所述第三天线单元的相位中心偏离几何中心。
  2. 根据权利要求1所述的超带宽天线阵列，其中，所述第一天线单元、所述第二天线单元和所述第三天线单元中的至少两个天线单元之间的相位中心间距大于几何中心间距。
  3. 根据权利要求1所述的超带宽天线阵列，其中，所述第一天线单元具有第一开口槽，所述第二天线单元具有第二开口槽，所述第三天线单元具有第三开口槽，且所述第一天线单元的第一相位中心位于所述第一开口槽的槽底所在一端，所述第二天线单元的第二相位中心位于所述第二开口槽的槽底所在一端，所述第三天线单元的第三相位中心位于所述第三开口槽的槽底所在一端。
  4. 根据权利要求3所述的超带宽天线阵列，其中，第二开口槽与所述第三开口槽的开口朝向相反。
  5. 根据权利要求3所述的超带宽天线阵列，其中，第一开口槽与所述第三开口槽的开口朝向相反。
  6. 根据权利要求1所述的超带宽天线阵列，其中，所述第一天线单元、所述第二天线单元和第三天线单元均分别为四分之一波模式辐射的平面倒F天线。
  7. 根据权利要求6所述的天线阵列，其中，所述第一天线单元的第一开口槽、所述第二天线单元的第二开口槽和所述第三天线单元的第三开口槽的开口朝向相同。
  8. 根据权利要求1所述的超带宽天线阵列，其中，所述天线阵列包括依次层叠设置的第一结构层、第二结构层和第三结构层；
    其中，所述第一天线单元、所述第二天线单元、第三天线单元和所述第四天线单元设置于所述第一结构层；
    所述第一天线单元、所述第二天线单元、第三天线单元和所述第四天线单元的馈电信号线设置于所述第二结构层，且所述第一天线单元、所述第二天线单元、第三天线单元和所述第四天线单元在所述第二结构层上的正投影位置设置为净空；
    参考金属地设置于所述第三结构层。
  9. 根据权利要求1所述的超带宽天线阵列，其中，所述第三天线单元和所述第四天线单元共用一条馈电信号线。
  10. 根据权利要求1所述的超带宽天线阵列，其中，所述第四天线单元为半波长的贴片天线，或者所述第四天线单元为四分之一波模式辐射的平面倒F天线。
  11. 根据权利要求1所述的超带宽天线阵列，其中，所述第一天线单元、所述第二天线单元、第三天线单元和所述第四天线单元中的相邻两个天线单元之间设置有金属地。
  12. 一种电子设备，包括：如权利要求1至11任一项所述的超带宽天线阵列。
  13. 根据权利要求12所述的电子设备，其中，还包括：摄像模组；
    在所述超带宽天线阵列的第一天线单元的第一开口槽、第二天线单元的第二开口槽和第三天线单元的第三开口槽的开口朝向相同的情况下，所述开口朝向与所述摄像模组所在一侧相背。
  14. 根据权利要求12所述的电子设备，其中，还包括：壳体和设置在所述壳体内的主板；
    其中，所述主板上设置有天线芯片，所述超带宽天线阵列与所述天线芯片电连接。
PCT/CN2023/085196 2022-04-01 2023-03-30 超带宽天线阵列及电子设备 WO2023186032A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210347400.4A CN114583446A (zh) 2022-04-01 2022-04-01 超带宽天线阵列及电子设备
CN202210347400.4 2022-04-01

Publications (1)

Publication Number Publication Date
WO2023186032A1 true WO2023186032A1 (zh) 2023-10-05

Family

ID=81778674

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/085196 WO2023186032A1 (zh) 2022-04-01 2023-03-30 超带宽天线阵列及电子设备

Country Status (2)

Country Link
CN (1) CN114583446A (zh)
WO (1) WO2023186032A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114583446A (zh) * 2022-04-01 2022-06-03 维沃移动通信有限公司 超带宽天线阵列及电子设备
CN115277901A (zh) * 2022-07-29 2022-11-01 维沃移动通信有限公司 折叠装置
CN116156626B (zh) * 2023-04-24 2023-06-27 深圳市飞睿智能有限公司 一种四天线系统及定位方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019057153A1 (en) * 2017-09-21 2019-03-28 Nokia Shanghai Bell Co., Ltd. MULTIBAND ANTENNA
CN209266580U (zh) * 2018-11-29 2019-08-16 清研讯科（北京）科技有限公司 天线装置及电子设备
CN110718740A (zh) * 2018-07-13 2020-01-21 苹果公司 具有到达角检测能力的电子设备
WO2021049679A1 (ko) * 2019-09-10 2021-03-18 엘지전자 주식회사 안테나를 구비하는 전자 기기
US20210096515A1 (en) * 2019-09-26 2021-04-01 Apple Inc. Electronic Device Wide Band Antennas
CN113131186A (zh) * 2021-03-26 2021-07-16 联想(北京)有限公司 一种超宽带天线、电子设备及信号接收方法
CN113178697A (zh) * 2021-04-09 2021-07-27 维沃移动通信有限公司 电路板及电子设备
CN113540773A (zh) * 2020-04-15 2021-10-22 苹果公司 具有紧凑超宽带天线的电子设备
CN113991299A (zh) * 2021-11-30 2022-01-28 维沃移动通信有限公司 天线组件和电子设备
CN114188707A (zh) * 2022-02-17 2022-03-15 荣耀终端有限公司 一种终端天线和控制天线波束方向的方法
CN114583446A (zh) * 2022-04-01 2022-06-03 维沃移动通信有限公司 超带宽天线阵列及电子设备

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019057153A1 (en) * 2017-09-21 2019-03-28 Nokia Shanghai Bell Co., Ltd. MULTIBAND ANTENNA
CN110718740A (zh) * 2018-07-13 2020-01-21 苹果公司 具有到达角检测能力的电子设备
CN209266580U (zh) * 2018-11-29 2019-08-16 清研讯科（北京）科技有限公司 天线装置及电子设备
WO2021049679A1 (ko) * 2019-09-10 2021-03-18 엘지전자 주식회사 안테나를 구비하는 전자 기기
US20210096515A1 (en) * 2019-09-26 2021-04-01 Apple Inc. Electronic Device Wide Band Antennas
CN113540773A (zh) * 2020-04-15 2021-10-22 苹果公司 具有紧凑超宽带天线的电子设备
CN113131186A (zh) * 2021-03-26 2021-07-16 联想(北京)有限公司 一种超宽带天线、电子设备及信号接收方法
CN113178697A (zh) * 2021-04-09 2021-07-27 维沃移动通信有限公司 电路板及电子设备
CN113991299A (zh) * 2021-11-30 2022-01-28 维沃移动通信有限公司 天线组件和电子设备
CN114188707A (zh) * 2022-02-17 2022-03-15 荣耀终端有限公司 一种终端天线和控制天线波束方向的方法
CN114583446A (zh) * 2022-04-01 2022-06-03 维沃移动通信有限公司 超带宽天线阵列及电子设备

Also Published As

Publication number Publication date
CN114583446A (zh) 2022-06-03

Similar Documents

Publication Publication Date Title
WO2023186033A1 (zh) 超带宽天线阵列及电子设备
WO2023186032A1 (zh) 超带宽天线阵列及电子设备
CN206076482U (zh) 电子设备
US10741906B2 (en) Electronic devices having communications and ranging capabilities
CN206962004U (zh) 包括相控天线阵列的装置和电子设备
US20200373672A1 (en) Millimeter Wave Patch Antennas
US10727580B2 (en) Millimeter wave antennas having isolated feeds
US20200313305A1 (en) Antenna module and terminal thereof
CN110867662B (zh) 天线封装模组和电子设备
US10665959B2 (en) Millimeter wave antennas having dual patch resonating elements
KR20210001976A (ko) 다중 주파수 초광대역 안테나들을 갖는 전자 디바이스들
EP1668737B1 (en) Low profile sector antenna configuration for portable wireless communication systems
KR20200036742A (ko) 안테나 모듈 격리 구조물을 갖는 전자 디바이스
CN113540773B (zh) 具有紧凑超宽带天线的电子设备
US10741933B2 (en) Dual-polarization phased antenna arrays
US11962099B2 (en) Antenna structure and high-frequency multi-band wireless communication terminal
CN110854507B (zh) 天线封装模组和电子设备
US10770798B2 (en) Flex cable fed antenna system
US11942674B2 (en) Antenna structure and terminal device
US11855334B2 (en) Antenna module and electronic device using the same
US20230223708A1 (en) Electronic apparatus comprising antenna
EP4421988A1 (en) Antenna structure and electronic device
CN113013595A (zh) 天线装置、壳体及电子设备
CN110649376B (zh) 一种天线和电子设备
CN112103624A (zh) 天线装置及电子设备

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: 23778397

Country of ref document: EP

Kind code of ref document: A1