WO2021082679A1 - 一种双频天线***及终端设备 - Google Patents

一种双频天线***及终端设备 Download PDF

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Publication number
WO2021082679A1
WO2021082679A1 PCT/CN2020/111288 CN2020111288W WO2021082679A1 WO 2021082679 A1 WO2021082679 A1 WO 2021082679A1 CN 2020111288 W CN2020111288 W CN 2020111288W WO 2021082679 A1 WO2021082679 A1 WO 2021082679A1
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WIPO (PCT)
Prior art keywords
frequency
dual
bluetooth
low
antenna system
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PCT/CN2020/111288
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English (en)
French (fr)
Inventor
尹柳中
王子同
谢仁礼
杨福军
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深圳Tcl新技术有限公司
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Publication of WO2021082679A1 publication Critical patent/WO2021082679A1/zh

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—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
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Definitions

  • This application relates to the field of antenna technology, and in particular to a dual-frequency antenna system and terminal equipment.
  • the commonly used antennas adopt the dual-resonance integrated mode of high and low frequency bands to achieve dual-band wifi
  • the existing antennas are non-metallic antennas, that is, the existing antennas must be separated from the metal by a certain distance, otherwise they will not work properly; and the current terminal equipment Metalized frames are becoming more and more popular.
  • the popularization of metalized frames in terminal equipment will inevitably cause metal frames to interfere with the signals of existing antennas to a certain extent, which makes the polarization and pattern of existing antennas impossible. It is unable to realize the omnidirectional coverage of the antenna signal, and the wireless connection in some directions is not smooth or even the wireless connection cannot be realized.
  • the technical problem to be solved by this application is to provide a dual-frequency antenna system and terminal equipment in view of the above-mentioned defects of the prior art, aiming to solve the technical problem that the dual-frequency antenna cannot achieve omnidirectional signal coverage due to the influence of metal in the prior art. .
  • a dual-frequency antenna system includes a substrate, wherein two dual-frequency antenna components are provided on both ends of the same side of the substrate, and each dual-frequency antenna component includes a low-frequency wifi radiator and a high-frequency radiator.
  • the two high-frequency wifi radiating plates are both located between the two wifi radiating plates, and the polarization directions of the two low-frequency wifi radiating plates are orthogonal.
  • the radiation edges of the two low-frequency wifi radiating sheets are all inclined with respect to the arrangement direction of the two dual-frequency antenna components.
  • the radiation side of one of the two low-frequency wifi radiators is inclined at 45° with respect to the length direction of the substrate, and the radiation side of the other low-frequency wifi radiator is opposite to The longitudinal direction of the substrate is inclined by 135°.
  • the dual-frequency antenna system further includes the feeders corresponding to the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet, respectively, and a side of the substrate away from the dual-frequency antenna assembly
  • the main control chip; the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet are respectively electrically connected to the main control chip through the corresponding feeder.
  • the substrate is provided with a plurality of wire passing holes, and the plurality of wire passing holes correspond to the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet one-to-one, and the passing The wire hole is used for the corresponding feeder to pass through.
  • one end of the feeder corresponding to the low-frequency wifi radiating sheet is connected to the main control chip, and the other end passes through the wire hole corresponding to the low-frequency wifi radiating sheet and is connected to the Low-frequency wifi radiator connection.
  • one end of the feed line corresponding to the high-frequency wifi radiating sheet is connected to the main control chip, and the other end passes through the wire hole corresponding to the high-frequency wifi radiating sheet and is connected to The high-frequency wifi radiating sheet is connected.
  • the projection of the main control chip on the substrate is located between the two high-frequency wifi radiation sheets.
  • a grounded conductive layer is provided on the side of the substrate away from the dual-frequency antenna assembly, and the grounded conductive layer is electrically connected to the dual-frequency antenna assembly.
  • a plurality of via holes are provided on the substrate corresponding to the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet, and a conductive layer is provided in the via hole, and the conductive The layer electrically connects the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet with the grounded conductive layer.
  • the low-frequency wifi radiating sheet and the high-frequency wifi radiating sheet are both provided with a plurality of through holes, and the plurality of through holes correspond to the plurality of via holes one-to-one, and the The conductive layer extends toward the corresponding through hole and is connected to the inner wall of the corresponding through hole.
  • a Bluetooth radiation sheet is further provided on the substrate on one side of the dual-frequency antenna assembly, and the Bluetooth radiation sheet is electrically connected to the main control chip and the ground conductive layer.
  • the dual-frequency antenna system wherein the dual-frequency antenna system further includes a Bluetooth feeder, and a Bluetooth via hole provided on the substrate, the Bluetooth via hole corresponds to the Bluetooth radiation sheet, and One end of the Bluetooth feeder is electrically connected with the main control chip, and the other end passes through the Bluetooth cable hole and is electrically connected with the Bluetooth radiation sheet.
  • the substrate is further provided with a plurality of Bluetooth via holes corresponding to the Bluetooth radiation sheet, and a Bluetooth conductive layer is provided in the Bluetooth via hole, and both ends of the Bluetooth conductive layer Are respectively electrically connected to the ground conductive layer and the Bluetooth radiation sheet.
  • the Bluetooth radiation sheet is provided with a plurality of Bluetooth through holes
  • the plurality of Bluetooth through holes correspond to the plurality of Bluetooth via holes one-to-one
  • the Bluetooth conductive layer extends to the Inside the bluetooth through hole and connected with the inner wall of the bluetooth through hole.
  • a terminal device which includes the dual-frequency antenna system as described in any one of the above.
  • two wifi radiators in the two frequency bands of high frequency and low frequency are used respectively to realize the independence of high and low frequency divisions, thereby realizing the designability of the pattern and polarization of the dual-frequency antenna system;
  • the radiation pattern of the high-frequency wifi radiator itself is omnidirectional in the horizontal plane, which can realize the vertical polarization and horizontal omnidirectional coverage of a low-profile single antenna;
  • the two low-frequency wifi radiators are arranged orthogonally in the polarization direction,
  • the horizontal directions of the two low-frequency antennas coincide with each other, and the coverage area complements each other, thereby achieving omnidirectional coverage, which not only ensures the normal operation of the dual-frequency antenna system, but also prevents the horizontal radiation of the dual-frequency antenna system from being reflected by metal, Therefore, the generation of communication blind spots is avoided, and the anti-metal performance of the dual-frequency antenna system is improved.
  • Figure 1 is a first view of the dual-band antenna system described in this application.
  • Figure 2 is a second view of the dual-band antenna system described in this application.
  • Fig. 3 is a schematic diagram of the structure of the substrate in the present application.
  • Fig. 4 is a functional block diagram of the dual-frequency antenna system described in the present application.
  • Fig. 5 is a schematic diagram of the electrical connection structure between the high-frequency wifi radiating sheet and the ground conductive layer in the present application.
  • the present application provides a dual-frequency antenna system. As shown in FIG. 1, it includes a substrate 1. Both ends of the substrate 1 are provided with dual-frequency antenna components 2 and two of the dual-frequency antenna components 2 are located in the The same side of the substrate 1; specifically, the substrate 1 has a rectangular parallelepiped shape, the two dual-frequency antenna components 2 are located at both ends of the substrate 1 in the length direction, and the two dual-frequency antenna components 2 are both Located on the same side of the thickness direction of the substrate 1; wherein each dual-band antenna assembly 2 includes a low-frequency wifi radiating sheet 21 and a high-frequency wifi radiating sheet 22, that is, the same side of the substrate 1 is provided with Two low-frequency wifi radiating sheets 21 and two high-frequency wifi radiating sheets 22; the two high-frequency wifi radiating sheets 22 in this application are both located between the two low-frequency wifi radiating sheets 21, and the two low-frequency wifi radiating sheets 21 The polarization direction of the radiation sheet 21 is orthogonal.
  • two WiFi radiators in the two frequency bands of high frequency and low frequency are used respectively to realize the independence of high and low frequency divisions, thereby realizing the designability of the directional pattern and polarization of the dual-frequency antenna system;
  • the radiation pattern of the high-frequency wifi radiator 22 is omnidirectional in the horizontal plane, which can realize the low-profile single antenna vertical polarization and horizontal omnidirectional coverage;
  • the two low-frequency wifi radiators 21 are realized by the orthogonal layout of the polarization directions
  • the horizontal directions of the two low-frequency antennas coincide with each other and complement each other in the coverage area, thereby achieving omnidirectional coverage.
  • the two frequency bands of high frequency and low frequency are divided into independent frequency, and both can cover omni-directionally, which realizes the omni-directional coverage of the signal of the dual-frequency antenna system, which not only ensures the normal operation of the dual-frequency antenna system, but also avoids all problems.
  • the horizontal radiation of the dual-frequency antenna system is subject to metal reflection, thereby avoiding communication blind spots, and improving the anti-metal performance of the dual-frequency antenna system.
  • the two dual-frequency antenna components 2 are arranged in sequence along the length direction of the substrate 1, and the radiation sides of the two low-frequency wifi radiating sheets 21 are inclined with respect to the length direction of the substrate 1; in an implementation manner
  • the radiating side of one low-frequency wifi radiating sheet is inclined at 45° with respect to the length direction of the substrate 1, and the radiating side of the other low-frequency wifi radiating sheet is inclined at 135° with respect to the length of the substrate 1, so that the two
  • the radiation pattern of the low-frequency wifi radiator 21 can be complementary, and the structure is symmetrical, and finally presents an orthogonal layout structure, which realizes omnidirectional coverage in the horizontal plane of the low-frequency antenna.
  • the dual-band antenna system further includes a main control chip 4 arranged on the substrate 1.
  • the low-frequency wifi radiating sheet 21 and the high-frequency wifi radiating sheet 22 are both connected to the
  • the main control chip 4 is electrically connected to transmit signals to the low-frequency wifi radiating sheet 21 and the high-frequency wifi radiating sheet 22 through the main control chip 4.
  • the dual-frequency antenna system also includes four feeders 3, and the four feeders 3 respectively correspond to the four wifi radiating plates one-to-one, so that the low-frequency wifi radiating plate 21 and the high-frequency wifi radiating plate 22 both pass through the corresponding
  • the feeder 3 is electrically connected to the main control chip 4.
  • the main control chip 4 is arranged on the side of the substrate 1 away from the dual-frequency antenna assembly 2, so that the feeder 3 connects the low-frequency wifi radiating sheet 21,
  • the high-frequency wifi radiator 22 When the high-frequency wifi radiator 22 is electrically connected to the main control chip 4, it must be partly located on the side of the substrate 1 facing the dual-band antenna assembly 2, and the other part is located on the substrate 1 away from the dual-frequency antenna assembly 2.
  • the influence of the feeder 3 on the dual-frequency antenna assembly 2 is reduced, and the omnidirectional coverage of the dual-frequency antenna assembly 2 in the horizontal plane is ensured.
  • the substrate 1 is provided with a plurality of wiring holes 5, in one embodiment, the number of the wiring holes 5 is four, and the four wiring holes 5 are connected to the four wifis respectively.
  • the radiating plates correspond to each other one by one, and the via 5 is used for the corresponding feeder line 3 to pass through; one end of the feeder line 3 corresponding to the low-frequency wifi radiating plate 21 is connected to the main control chip 4, and the other One end passes through the wire hole 5 corresponding to the low-frequency wifi radiating sheet 21 and then is connected to the low-frequency wifi radiating sheet 21; one end of the feeder 3 corresponding to the high-frequency wifi radiating sheet 22 is connected to the main controller The chip 4 is connected, and the other end passes through the wire hole 5 corresponding to the high-frequency wifi radiating sheet 22 and then is connected to the high-frequency wifi radiating sheet 22.
  • the via 5 is provided so that the two ends of the feeder 3 can be separately placed on both sides of the substrate 1 through the via 5, and most of the feeder 3 is placed in the
  • the substrate 1 is away from the side of the dual-frequency antenna assembly 2, which further reduces the influence of the feeder 3 on the dual-frequency antenna assembly 2, and can reduce the area of the substrate 1 and reduce production costs.
  • the projection of the main control chip 4 on the substrate 1 is located between the two high-frequency wifi radiation sheets 22, that is, the main control chip 4 faces away from the substrate 1 on the substrate 1.
  • One side of the dual-frequency antenna assembly 2 is located at the center of the feeder line 3, and the feeder lines 3 respectively connected to the two dual-frequency antenna assemblies 2 are located on both sides of the main control chip 4, so that the feeder line 3 While electrically connecting the dual-frequency antenna assembly 2 and the main control chip 4, the shortest length can be achieved, thereby reducing the loss of the feeder 3.
  • a grounded conductive layer 100 is provided on the side of the substrate 1 away from the dual-frequency antenna assembly 2, and the grounded conductive layer 100 is electrically connected to the dual-frequency antenna assembly 2 so that the dual-frequency antenna assembly 2 The frequency antenna assembly 2 is short-circuited to the ground conductive layer 100.
  • a plurality of via holes 6 are provided on the substrate 1 corresponding to the low-frequency wifi radiating sheet 21 and the high-frequency wifi radiating sheet 22.
  • a conductive layer 200 is provided, and both the low-frequency wifi radiating sheet 21 and the high-frequency wifi radiating sheet 22 are electrically connected to the ground conductive layer 100 through the conductive layer 200.
  • the low-frequency wifi radiating sheet 21 and the high-frequency wifi radiating sheet 22 are each provided with a plurality of through holes 7, and the plurality of through holes 7 correspond to the plurality of via holes 6 one-to-one.
  • the conductive layer 200 extends toward the corresponding through hole 7 and is connected to the inner wall of the corresponding through hole 7, so as to improve the stability of the electrical connection between the low-frequency wifi radiating sheet 21 and the ground conductive layer 100, and The stability of the electrical connection between the high-frequency wifi radiation sheet 22 and the ground conductive layer 100.
  • a Bluetooth radiator 8 is also provided on the substrate 1 on the side of the dual-frequency antenna assembly 2.
  • the Bluetooth radiator 8 is a low-frequency Bluetooth radiator 8.
  • the Bluetooth radiator 8 and the main control chip 4 and The ground conductive layers 100 are electrically connected.
  • the dual-band antenna system also includes a Bluetooth feeder 12, and a Bluetooth via 9 provided on the substrate 1.
  • the Bluetooth via 9 corresponds to the Bluetooth radiator 8, and the Bluetooth feeder 12 One end is electrically connected to the main control chip 4, and the other end passes through the Bluetooth cable hole 9 and is electrically connected to the Bluetooth radiation sheet 8, and the main control chip 4 provides a signal to the Bluetooth radiation sheet 8.
  • the substrate 1 is also provided with a number of Bluetooth via holes 10 corresponding to the Bluetooth radiation sheet 8.
  • a Bluetooth conductive layer is provided in the Bluetooth via hole 10, and both ends of the Bluetooth conductive layer are connected to the ground respectively.
  • the conductive layer 100 is electrically connected to the Bluetooth radiation sheet 8.
  • the Bluetooth radiation sheet 8 is provided with a plurality of Bluetooth through holes 11, and the plurality of Bluetooth through holes 11 correspond to the plurality of Bluetooth through holes 10 one-to-one.
  • the Bluetooth conductive layer extends into the Bluetooth through hole 11 and is connected to the inner wall of the Bluetooth through hole 11 to enhance the connection stability between the Bluetooth radiation sheet 8 and the ground conductive layer 100.
  • the Bluetooth radiating sheet 8 is located between the two high-frequency wifi radiating sheets 22, that is, the two high-frequency wifi radiating sheets 22 in this application are arranged on both sides of the Bluetooth radiating sheet 8.
  • the low-frequency wifi radiating sheet 21 is arranged on the outermost side, which improves the isolation between the low-frequency wifi radiating sheet 21, the high-frequency wifi radiating sheet 22, and the Bluetooth radiating sheet 8.
  • the two low-frequency wifi radiating sheets 21 in the present application form an angle with each other, which further improves the low-frequency wifi The isolation between the radiation sheet 21, the high-frequency wifi radiation sheet 22 and the Bluetooth radiation sheet 8.
  • the low-frequency wifi radiator 21 in the present application is a 2.4Hz wifi radiator
  • the high-frequency wifi radiator 22 is a 5Hz wifi radiator
  • the low-frequency Bluetooth radiator 8 is a 2.4Hz Bluetooth radiator 8.
  • the medium of the substrate 1 is FR4 material
  • the substrate 1 is a rectangular parallelepiped with a length of 200 mm, a width of 42 mm, and a thickness of 1.6 mm
  • the dielectric constant of the substrate 1 is 4.3 or 4.4.
  • the present application also provides a terminal device, which includes the dual-frequency antenna system described in any one of the above.
  • the present application provides a dual-frequency antenna system and terminal equipment.
  • the dual-frequency antenna system includes a substrate, and both ends of the same side of the substrate are provided with dual-frequency antenna components.
  • the component includes a low-frequency wifi radiating sheet and a high-frequency wifi radiating sheet, the two high-frequency wifi radiating sheets are located between the two wifi radiating sheets, and the polarization directions of the two low-frequency wifi radiating sheets are orthogonal.
  • two WiFi radiators in the two frequency bands of high frequency and low frequency are used respectively to realize the independence of high and low frequency divisions, thereby realizing the designability of the directional pattern and polarization of the dual-frequency antenna system;
  • the radiation pattern of the high-frequency wifi radiator itself is omnidirectional in the horizontal plane, which can realize the vertical polarization and horizontal omnidirectional coverage of a low-profile single antenna;
  • the two low-frequency wifi radiators are arranged in orthogonal polarization directions to achieve two The horizontal directions of the low-frequency antennas coincide with each other and complement each other in the coverage area, thereby achieving omnidirectional coverage, which not only ensures the normal operation of the dual-frequency antenna system, but also prevents the horizontal radiation of the dual-frequency antenna system from being reflected by metal, thereby avoiding the occurrence of
  • the communication blind zone improves the anti-metal performance of the dual-frequency antenna system.

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Abstract

本申请公开一种双频天线***及终端设备，所述双频天线***包括基板，所述基板的同一侧的两端均设置有双频天线组件，所述双频天线组件包括一个低频wifi辐射片和一个高频wifi辐射片，两个所述高频wifi辐射片位于两个所述wifi辐射片之间，两个所述低频wifi辐射片的极化方向正交。本申请中通过高频和低频两个频段的wifi辐射片分别使用两个，实现高低分频独立，两个高频wifi辐射片本身辐射方向图在水平面内是全向的，可以实现低剖面单天线垂直极化水平全向覆盖；两个低频wifi辐射片通过极化方向的正交布局，从而实现全向覆盖，避免遭受金属反射，从而避免产生通信盲区，提升抗金属性能。

Description

一种双频天线***及终端设备
优先权
本公开要求申请日为2019年10月29日提交中国专利局、申请号为“201921838464.4”、申请名称为“一种双频天线***及终端设备”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本申请涉及天线技术领域，尤其涉及一种双频天线***及终端设备。
背景技术
目前常用天线都是采用高低两个频段双谐振一体的模式实现双频wifi，但现有天线为非抗金属天线，即现有天线必须离开金属一定距离，否则不能正常工作；而且目前终端设备的金属化边框越来越成为潮流，金属化边框在终端设备中应用的普及，必然使得金属边框对现有天线的信号造成一定程度的干扰，这就造成现有天线形式的极化和方向图不可控，无法实现天线信号的全向覆盖，出现某些方位无线连接不畅甚至无法实现无线连接的现象。
因此，现有技术还有待于改进和发展。
申请内容
本申请要解决的技术问题在于，针对现有技术的上述缺陷，提供一种双频天线***及终端设备，旨在解决现有技术中双频天线受金属影响无法实现信号全向覆盖的技术问题。
本申请解决技术问题所采用的技术方案如下：
一种双频天线***，其包括基板，其中，所述基板的同一侧的两端均设置有两个双 频天线组件，每个所述双频天线组件均包括一个低频wifi辐射片和一个高频wifi辐射片，两个所述高频wifi辐射片均位于两个所述wifi辐射片之间，两个所述低频wifi辐射片的极化方向正交。
所述双频天线***，其中，两个所述低频wifi辐射片的辐射边均相对于两个所述双频天线组件的排列方向倾斜。
所述双频天线***，其中，两个所述低频wifi辐射片中的一个低频wifi辐射片的辐射边相对于所述基板的长度方向倾斜45°，另一个低频wifi辐射片的辐射边相对于所述基板的长度方向倾斜135°。
所述双频天线***，其还包括分别与所述低频wifi辐射片和所述高频wifi辐射片一一对应的所述馈线，以及设置在所述基板背离所述双频天线组件一侧的主控芯片；所述低频wifi辐射片和所述高频wifi辐射片分别通过对应的所述馈线与所述主控芯片电连接。
所述双频天线***，其中，所述基板上设置有若干个过线孔，若干个所述过线孔与所述低频wifi辐射片和所述高频wifi辐射片一一对应，所述过线孔用于供对应的所述馈线穿过。
所述双频天线***，其中，所述低频wifi辐射片对应的所述馈线的一端与所述主控芯片连接，另一端穿过与所述低频wifi辐射片对应的过线孔后与所述低频wifi辐射片连接。
所述双频天线***，其中，所述高频wifi辐射片对应的所述馈线的一端与所述主控芯片连接，另一端穿过与所述高频wifi辐射片对应的过线孔后与所述高频wifi辐射片连接。
所述双频天线***，其中，所述主控芯片在所述基板上的投影位于两个所述高频wifi辐射片之间。
所述双频天线***，其中，所述基板上背离所述双频天线组件一侧设置有接地导电层，所述接地导电层与所述双频天线组件电连接。
所述双频天线***，其中，所述基板上对应所述低频wifi辐射片和所述高频wifi辐射片处均设置有若干个通路孔，所述通路孔内设置有导电层，所述导电层将所述低频 wifi辐射片和所述高频wifi辐射片与所述接地导电层电连接。
所述双频天线***，其中，所述低频wifi辐射片和所述高频wifi辐射片上均设置有若干个通孔，若干个所述通孔与若干个所述通路孔一一对应，所述导电层朝向对应的通孔延伸，并与对应的通孔的内壁连接。
所述双频天线***，其中，所述基板上位于所述双频天线组件一侧还设置有蓝牙辐射片，所述蓝牙辐射片与所述主控芯片和所述接地导电层均电连接。
所述双频天线***，其中，所述双频天线***还包括蓝牙馈线，以及设置在所述基板上的蓝牙过线孔，所述蓝牙过线孔与所述蓝牙辐射片相对应，所述蓝牙馈线的一端与所述主控芯片电连接，另一端穿过所述蓝牙过线孔并与所述蓝牙辐射片电连接。
所述双频天线***，其中，所述基板上还设置有与所述蓝牙辐射片对应的若干个蓝牙通路孔，所述蓝牙通路孔内设置有蓝牙导电层，所述蓝牙导电层的两端分别与所述接地导电层和所述蓝牙辐射片电连接。
所述双频天线***，其中，所述蓝牙辐射片上设置有若干个蓝牙通孔，若干个所述蓝牙通孔与若干个所述蓝牙通路孔一一对应，所述蓝牙导电层延伸至所述蓝牙通孔内，并与所述蓝牙通孔的内壁连接。
一种终端设备，其包括如上任意一项所述双频天线***。
有益效果：本申请中通过高频和低频两个频段的wifi辐射片分别使用两个，实现高低分频独立，进而实现所述双频天线***的方向图和极化的可设计性；两个所述高频wifi辐射片本身辐射方向图在水平面内是全向的，可以实现低剖面单天线垂直极化水平全向覆盖；两个所述低频wifi辐射片通过极化方向的正交布局，实现两个低频天线水平方向彼此重合，覆盖区域内彼此补充，从而实现全向覆盖，既保证所述双频天线***能够正常工作，又能避免所述双频天线***的水平辐射遭受金属反射，从而避免产生通信盲区，提升了所述双频天线***的抗金属性能。
附图说明
图1是本申请中所述双频天线***的第一视图；
图2是本申请中所述双频天线***的第二视图；
图3是本申请中基板的结构示意图；
图4是本申请中所述双频天线***的功能原理框图；
图5是本申请中所述高频wifi辐射片与所述接地导电层电连接结构示意图。
具体实施方式
为使本申请的目的、技术方案及优点更加清楚、明确，以下参照附图并举实施例对本申请进一步详细说明。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。
本申请提供一种双频天线***，如图1所示，其包括基板1，所述基板1的两端均设置有双频天线组件2，并且两个所述双频天线组件2位于所述基板1的同一侧；具体的，所述基板1为长方体形，两个所述双频天线组件2分别位于所述基板1的长度方向的两端，并且两个所述双频天线组件2均位于所述基板1的厚度方向的同一侧；其中，每个所述双频天线组件2包括一个低频wifi辐射片21和一个高频wifi辐射片22，即所述基板1的同一侧共设置有两个低频wifi辐射片21和两个高频wifi辐射片22；本申请中两个所述高频wifi辐射片22均位于两个所述低频wifi辐射片21之间，两个所述低频wifi辐射片21的极化方向正交。
本申请中通过高频和低频两个频段的wifi辐射片分别使用两个，实现高低分频独立，进而实现所述双频天线***的方向图和极化的可设计性；两个所述高频wifi辐射片22本身辐射方向图在水平面内是全向的，可以实现低剖面单天线垂直极化水平全向覆盖；两个所述低频wifi辐射片21通过极化方向的正交布局，实现两个低频天线水平方向彼此重合，覆盖区域内彼此补充，从而实现全向覆盖。本申请中高频和低频两个频段分频独立，并均能全向覆盖，实现了所述双频天线***信号的全向覆盖，既保证所述双频天线***能够正常工作，又能避免所述双频天线***的水平辐射遭受金属反射，从而避免产生通信盲区，提升了所述双频天线***的抗金属性能。
在一种实现方式中，本申请中由于所述双频天线***的抗金属性能得到大大提升， 解决了现有技术中金属化边框和大型金属反射片条件下产生终端设备内置空间稀缺的问题，克服了现有技术中的天线不能距离金属过近的弱点，避免终端设备为所述双频天线***提供大的净空区。
两个所述双频天线组件2沿所述基板1的长度方向依次排列，两个所述低频wifi辐射片21的辐射边均相对于所述基板1的长度方向倾斜；在一种实现方式中，其中一个低频wifi辐射片的辐射边相对于所述基板1的长度方向倾斜45°，另一个低频wifi辐射片的辐射边相对于所述基板1的长度方向倾斜135°，使得两个所述低频wifi辐射片21的辐射方向图能够互补，并且结构对称，最终呈现正交布局的结构，实现低频天线水平面内的全向覆盖。
如图2和图4所示，所述双频天线***还包括设置在所述基板1上的主控芯片4，所述低频wifi辐射片21和所述高频wifi辐射片22均与所述主控芯片4电连接，以通过所述主控芯片4为所述低频wifi辐射片21和所述高频wifi辐射片22传递信号。所述双频天线***还包括四个馈线3，四个所述馈线3分别与四个wifi辐射片一一对应，使得所述低频wifi辐射片21和所述高频wifi辐射片22均通过对应的所述馈线3与所述主控芯片4电连接。
在一种实现方式中，本申请中，所述主控芯片4设置在所述基板1背离所述双频天线组件2的一侧，使得所述馈线3将所述低频wifi辐射片21、所述高频wifi辐射片22与所述主控芯片4电连接时，必须部分位于所述基板1上朝向所述双频天线组件2一侧，另一部分位于所述基板1上背离所述双频天线组件2一侧，减少所述馈线3对所述双频天线组件2的影响，保证所述双频天线组件2在水平面内的全向覆盖。
如图3所示，所述基板1上设置有若干个过线孔5，在一种实施方式中，所述过线孔5为4个，4个所述过线孔5分别与4个wifi辐射片一一对应，所述过线孔5用于供对应的所述馈线3穿过；与所述低频wifi辐射片21对应的所述馈线3的一端与所述主控芯片4连接，另一端穿过与所述低频wifi辐射片21对应的过线孔5后与所述低频wifi辐射片21连接；与所述高频wifi辐射片22对应的所述馈线3的一端与所述主控芯片4连接，另一端穿过与所述高频wifi辐射片22对应的过线孔5后与所述高频wifi辐射片 22连接。本申请中通过设置所述过线孔5，使得所述馈线3可以通过所述过线孔5实现两端分置于所述基板1的两侧，所述馈线3的大部分置于所述基板1背离所述双频天线组件2一侧，进一步减少所述馈线3对所述双频天线组件2的影响，并且能够减少所述基板1的面积，降低生产成本。
在一种实现方式中，所述主控芯片4在所述基板1上的投影位于两个所述高频wifi辐射片22之间，即所述主控芯片4在所述基板1背离所述双频天线组件2一侧位于所述馈线3的中央位置，分别与两个所述双频天线组件2连接的所述馈线3分居于所述主控芯片4的两侧，使得所述馈线3在将所述双频天线组件2与所述主控芯片4电连接的同时，可以达到长度最短，从而降低所述馈线3的损耗。
如图5所示，所述基板1上背离所述双频天线组件2一侧设置有接地导电层100，所述接地导电层100与所述双频天线组件2电连接，以使所述双频天线组件2短路至所述接地导电层100。
如图3所示，所述基板1上对应所述低频wifi辐射片21和所述高频wifi辐射片22处均设置有若干个通路孔6，如图5所示，所述通路孔6内设置有导电层200，所述低频wifi辐射片21和所述高频wifi辐射片22均通过所述导电层200与所述接地导电层100电连接。
如图1所示，所述低频wifi辐射片21和所述高频wifi辐射片22上均设置有若干个通孔7，若干个所述通孔7与若干个所述通路孔6一一对应，所述导电层200朝向对应的通孔7延伸，并与对应通孔7的内壁连接，以提高所述低频wifi辐射片21与所述接地导电层100之间电连接的稳定性，以及所述高频wifi辐射片22与所述接地导电层100之间电连接的稳定性。
所述基板1上位于所述双频天线组件2一侧还设置有蓝牙辐射片8，所述蓝牙辐射片8为低频蓝牙辐射片8，所述蓝牙辐射片8与所述主控芯片4和所述接地导电层100均电连接。
所述双频天线***还包括蓝牙馈线12，以及设置在所述基板1上的蓝牙过线孔9，所述蓝牙过线孔9与所述蓝牙辐射片8相对应，所述蓝牙馈线12的一端与所述主控芯 片4电连接，另一端穿过所述蓝牙过线孔9并与所述蓝牙辐射片8电连接，通过所述主控芯片4为所述蓝牙辐射片8提供信号。
所述基板1上还设置有与所述蓝牙辐射片8对应的若干个蓝牙通路孔10，所述蓝牙通路孔10内设置有蓝牙导电层，所述蓝牙导电层的两端分别与所述接地导电层100和所述蓝牙辐射片8电连接。
在一种实现方式中，如图1所示，所述蓝牙辐射片8上设置有若干个蓝牙通孔11，若干个所述蓝牙通孔11与若干个所述蓝牙通路孔10一一对应，所述蓝牙导电层延伸至所述蓝牙通孔11内，并与所述蓝牙通孔11的内壁连接，从而增强所述蓝牙辐射片8与所述接地导电层100之间的连接稳定性。所述蓝牙辐射片8位于两个所述高频wifi辐射片22之间，即本申请中两个所述高频wifi辐射片22布局在所述蓝牙辐射片8的两侧，两个所述低频wifi辐射片21布局在最外侧，提高了所述低频wifi辐射片21、所述高频wifi辐射片22以及所述蓝牙辐射片8三者之间的隔离度。
由于所述低频wifi辐射片21的辐射边相对于所述基板1的长度方向倾斜，因此本申请中两个所述低频wifi辐射片21之间相互形成一个夹角，进一步提高了所述低频wifi辐射片21、所述高频wifi辐射片22以及所述蓝牙辐射片8三者之间的隔离度。
在一种实现方式中，本申请中所述低频wifi辐射片21为2.4Hzwifi辐射片，所述高频wifi辐射片22为5Hzwifi辐射片，所述低频蓝牙辐射片8为2.4Hz蓝牙辐射片8。
所述基板1介质为FR4材料，所述基板1为长方体形，且其长度为200mm、宽度为42mm、厚度为1.6mm，所述基板1的介电常数为4.3或4.4。
本申请还提供一种终端设备，所述终端设备包括如上任意一项所述双频天线***。
综上所述，本申请提供了一种双频天线***及终端设备，所述双频天线***包括基板，所述基板的同一侧的两端均设置有双频天线组件，所述双频天线组件包括一个低频wifi辐射片和一个高频wifi辐射片，两个所述高频wifi辐射片位于两个所述wifi辐射片之间，两个所述低频wifi辐射片的极化方向正交。本申请中通过高频和低频两个频段的wifi辐射片分别使用两个，实现高低分频独立，进而实现所述双频天线***的方向图和极化的可设计性；两个所述高频wifi辐射片本身辐射方向图在水平面内是全向的，可以 实现低剖面单天线垂直极化水平全向覆盖；两个所述低频wifi辐射片通过极化方向的正交布局，实现两个低频天线水平方向彼此重合，覆盖区域内彼此补充，从而实现全向覆盖，既保证所述双频天线***能够正常工作，又能避免所述双频天线***的水平辐射遭受金属反射，从而避免产生通信盲区，提升了所述双频天线***的抗金属性能。
应当理解的是，本申请的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (16)

  1. 一种双频天线***，其包括基板，其中，所述基板的同一侧的两端均设置有双频天线组件，每个所述双频天线组件均包括一个低频wifi辐射片和一个高频wifi辐射片，两个所述高频wifi辐射片均位于两个所述wifi辐射片之间，两个所述低频wifi辐射片的极化方向正交。
  2. 根据权利要求1所述的双频天线***，其中，两个所述低频wifi辐射片的辐射边均相对于两个所述双频天线组件的排列方向倾斜。
  3. 根据权利要求1所述双频天线***，其中，两个所述低频wifi辐射片中的一个低频wifi辐射片的辐射边相对于所述基板的长度方向倾斜45°，另一个低频wifi辐射片的辐射边相对于所述基板的长度方向倾斜135°。
  4. 根据权利要求1所述的双频天线***，其中，其还包括分别与所述低频wifi辐射片和所述高频wifi辐射片一一对应的馈线，以及设置在所述基板背离所述双频天线组件一侧的主控芯片；所述低频wifi辐射片和所述高频wifi辐射片分别通过对应的所述馈线与所述主控芯片电连接。
  5. 根据权利要求4所述的双频天线***，其中，所述基板上设置有若干个过线孔，若干个所述过线孔与所述低频wifi辐射片和所述高频wifi辐射片一一对应，所述过线孔用于供对应的所述馈线穿过。
  6. 根据权利要求5所述的双频天线***，其中，所述低频wifi辐射片对应的所述馈线的一端与所述主控芯片连接，另一端穿过与所述低频wifi辐射片对应的过线孔后与所述低频wifi辐射片连接。
  7. 根据权利要求5所述的双频天线***，其中，所述高频wifi辐射片对应的所述馈线的一端与所述主控芯片连接，另一端穿过与所述高频wifi辐射片对应的过线孔后与所述高频wifi辐射片连接。
  8. 根据权利要求4所述的双频天线***，其中，所述主控芯片在所述基板上的投影位于两个所述高频wifi辐射片之间。
  9. 根据权利要求4所述的双频天线***，其中，所述基板上背离所述双频天线组件一侧设置有接地导电层，所述接地导电层与所述双频天线组件电连接。
  10. 根据权利要求9所述的双频天线***，其中，所述基板上对应所述低频wifi辐射片和所述高频wifi辐射片处均设置有若干个通路孔，所述通路孔内设置有导电层，所述导电层将所述低频wifi辐射片和所述高频wifi辐射片与所述接地导电层电连接。
  11. 根据权利要求10所述的双频天线***，其中，所述低频wifi辐射片和所述高频wifi辐射片上均设置有若干个通孔，若干个所述通孔与若干个所述通路孔一一对应，所述导电层朝向对应的通孔延伸，并与对应的通孔的内壁连接。
  12. 根据权利要求9所述的双频天线***，其中，所述基板上位于所述双频天线组件一侧还设置有蓝牙辐射片，所述蓝牙辐射片与所述主控芯片和所述接地导电层均电连接。
  13. 根据权利要求12所述的双频天线***，其中，所述双频天线***还包括蓝牙馈线，以及设置在所述基板上的蓝牙过线孔，所述蓝牙过线孔与所述蓝牙辐射片相对应，所述蓝牙馈线的一端与所述主控芯片电连接，另一端穿过所述蓝牙过线孔并与所述蓝牙辐射片电连接。
  14. 根据权利要求13所述的双频天线***，其中，所述基板上还设置有与所述蓝牙辐射片对应的若干个蓝牙通路孔，所述蓝牙通路孔内设置有蓝牙导电层，所述蓝牙导电层的两端分别与所述接地导电层和所述蓝牙辐射片电连接。
  15. 根据权利要求14所述的双频天线***，其中，所述蓝牙辐射片上设置有若干个蓝牙通孔，若干个所述蓝牙通孔与若干个所述蓝牙通路孔一一对应，所述蓝牙导电层延伸至所述蓝牙通孔内，并与所述蓝牙通孔的内壁连接。
  16. 一种终端设备，其中，其包括如权利要求1-15中任意一项所述的双频天线***。
PCT/CN2020/111288 2019-10-29 2020-08-26 一种双频天线***及终端设备 WO2021082679A1 (zh)

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