WO2021000180A1 - Wifi 天线及无线通信装置 - Google Patents

Wifi 天线及无线通信装置 Download PDF

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Publication number
WO2021000180A1
WO2021000180A1 PCT/CN2019/094080 CN2019094080W WO2021000180A1 WO 2021000180 A1 WO2021000180 A1 WO 2021000180A1 CN 2019094080 W CN2019094080 W CN 2019094080W WO 2021000180 A1 WO2021000180 A1 WO 2021000180A1
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WO
WIPO (PCT)
Prior art keywords
radiator
unit
antenna
stub
stub unit
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Application number
PCT/CN2019/094080
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English (en)
French (fr)
Inventor
沈亚川
郑磊
彭永生
王红军
Original Assignee
瑞声声学科技(深圳)有限公司
瑞声科技(新加坡)有限公司
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Application filed by 瑞声声学科技(深圳)有限公司, 瑞声科技(新加坡)有限公司 filed Critical 瑞声声学科技(深圳)有限公司
Priority to PCT/CN2019/094080 priority Critical patent/WO2021000180A1/zh
Priority to CN201910590931.4A priority patent/CN110350303A/zh
Priority to US16/996,932 priority patent/US11245178B2/en
Publication of WO2021000180A1 publication Critical patent/WO2021000180A1/zh

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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
    • H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • 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
    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating 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
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • 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
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines

Definitions

  • This application relates to a signal processing field, in particular to a WIFI Antenna and wireless communication device.
  • wireless communication devices for example, routers
  • the antenna used to transmit and receive radio waves to transmit and exchange radio data signals is undoubtedly one of the most important components in wireless communication devices.
  • This application is aimed at traditional antennas that have low gain and cannot fully cover WIFI
  • the problem of frequency band provides a way to improve gain and comprehensive coverage WIFI Frequency band WIFI Antenna and wireless communication device.
  • a WIFI The antenna includes: a dipole, the dipole includes a first radiator and a second radiator that are relatively spaced apart; a power feeding port, the power feeding port is provided on the first radiator and the second radiator The adjacent end of the radiator;
  • a balun structure comprising: a first access part, a second access part disposed opposite to the first access part, connecting the first access part and the second access part
  • the middle part of the middle part has a ring structure
  • the first access part of the balun structure is connected to the first radiator at the power feeding port, and the second access part is connected to the second radiator at the power feeding port.
  • the first radiator includes: a first branch unit and a second branch unit; the second radiator includes: a third branch unit and a fourth branch unit; the first branch unit
  • the structure of the unit, the second branch unit, the third branch unit and the fourth branch unit are all " L "Shape structure.
  • first stub unit and the third stub unit are arranged center-symmetrically or axially, and the second stub unit and the fourth stub unit are arranged axisymmetrically.
  • the total length of the first branch unit is greater than the total length of the second branch unit, and the total length of the third branch unit is greater than the total length of the fourth branch unit;
  • the first branch unit and the third branch unit are formed to work at 2.4GHz-2.5GHz Frequency band antenna, the second stub unit and the fourth stub unit form and work at 5.15GHz-5.85GHz Frequency band antenna.
  • the first access part and the second access part in the balun structure are arranged in parallel, and the middle part includes: a first horizontal bar, a second horizontal bar and a first vertical bar, The first horizontal bar and the second horizontal bar are parallel and located on the same side of the first vertical bar.
  • One end of the first horizontal bar is perpendicularly connected to one end of the first vertical bar.
  • One end of the two horizontal bars is vertically connected with the other end of the first vertical bar to form a ring structure; the other end of the first horizontal bar is vertically connected with the first access part, and the second horizontal bar The other end of is vertically connected to the second access part.
  • the length of the first horizontal bar is greater than the length of the second horizontal bar, and the length of the first access portion is greater than the length of the second access portion.
  • one end of the first branch unit is vertically connected to one end of the second branch unit, and one end of the third branch unit is vertically connected to one end of the fourth branch unit.
  • this application also provides a wireless communication device, including the above WIFI antenna.
  • the antenna includes a dipole.
  • the dipole includes a first radiator and a second radiator that are relatively spaced apart.
  • a power feeding port is provided at the adjacent ends of the first radiator and the second radiator.
  • the structure includes: a first access part, a second access part, and a middle part connecting the first access part and the second access part, the middle part of the balun structure has a ring structure, the WIFI
  • the antenna setting has the characteristics of omnidirectional radiation, high gain and high physical stability, which not only improves the gain, but also fully covers WIFI Frequency band.
  • figure 1 As an example WIFI
  • FIG. 1 As an example WIFI
  • Figure 4 As an example WIFI Simulation diagram of the reflection coefficient corresponding to the antenna
  • FIG. 5 As an example WIFI A simulation diagram of antenna efficiency corresponding to the antenna
  • FIG. 6 As an example WIFI Radiation patterns of the antenna in two different directions.
  • a WIFI Antenna including dipole, feed port 103 Barron structure 30 ;
  • the dipole includes first radiators arranged at relative intervals 10 And the second radiator 20 ;
  • Feeder 103 The power feeding port is provided at the adjacent ends of the first radiator and the second radiator, and the balun structure 30 Including: the first access part 301 , And the first access part 301 Relatively set second access part 302 , The middle part connecting the first access part and the second access part 303 , The middle part has a ring structure; the first access part of the balun structure 301 Connect with the first radiator at the feed port 10 , The second access part 301 Between the feed port and the second radiator 20 connection.
  • the antenna composed of the first radiator and the second radiator is a dipole antenna.
  • the dipole antenna is a balanced antenna
  • the coaxial cable connecting the antenna is an unbalanced transmission line. If the dipole antenna is connected with If the coaxial cable is directly connected, high-frequency current will flow through the outer sheath of the coaxial cable, which will affect the radiation of the antenna. Therefore, it is necessary to add a balun structure between the antenna and the ground.
  • the balun structure in this application is a balun structure with a ring structure. By adding the balun structure, the WIFI
  • the antenna has the characteristics of high gain, omnidirectional radiation and high physical stability.
  • the balun structure is respectively connected with the middle part of the first radiator and connected with the middle part of the second radiator.
  • the shapes of the first radiator and the second radiator can be customized according to needs, for example, can be set in a bent shape.
  • the first radiator 10 Including: the first sub-unit 101 And the second branch unit 102 ;
  • the second radiator 20 Including: the third branch unit 201 And the fourth branch unit 202 ;
  • the third branch unit 201 And the fourth branch unit 202 The structure is " L "Shaped structure.
  • the first branch unit 101 And the third branch unit 201 Symmetrically arranged in the center, the second branch unit 102 And the fourth branch unit 202 Axisymmetrically arranged.
  • first stub unit and the third stub unit can also be arranged axisymmetrically, which can be customized according to actual needs.
  • the total length of the first branch unit is greater than the total length of the second branch unit, and the total length of the third branch unit is greater than the total length of the fourth branch unit;
  • the first branch unit and the third branch unit are formed to work in 2.4GHz-2.5GHz Frequency band antenna, the second stub unit and the fourth stub unit form and work at 5.15GHz-5.85GHz Frequency band antenna.
  • WIFI The frequency band involves two frequency bands, the first branch unit and the third branch unit work in 2.4GHz-2.5GHz Frequency band antenna, the second stub unit and the fourth stub unit form and work at 5.15GHz-5.85GHz Frequency band antenna, realized WIFI The overall radiation of the antenna.
  • the first access in the balun structure 301 With the second access part 302 Parallel arrangement, the middle part 303 include: the first bar 3031 , The second bar 3032 And the first vertical bar 3033 , The first horizontal bar 3031 And the second bar 3032 Parallel and located in the first vertical bar 3033 On the same side, the first horizontal bar 3031 One end with the first vertical bar 3033 One end of the vertical connection, the second horizontal bar 3032 One end with the first vertical bar 3033 The other end is connected vertically to form a ring structure;
  • the first bar 3031 And the first access part 301 Vertically connected, the second horizontal bar 3032 And the second access part 302 Connect vertically.
  • the length of the first horizontal bar is greater than the length of the second horizontal bar, and the length of the first access portion is greater than the length of the second access portion.
  • one end of the first branch unit is vertically connected to one end of the second branch unit, and one end of the third branch unit is vertically connected to one end of the fourth branch unit.
  • the antenna is combined with different inclination angles to increase the vertical WIFI Coverage.
  • the length of the first access part of the balun structure is 7.5mm ,
  • the length of the second access part is 5mm ,
  • the length of the first bar in the middle is 6mm
  • the length of the first vertical bar is 3mm ,
  • the length of the second bar is 3mm .
  • the dimensions of other parts are marked in the figure, for example, the gap between the first radiator and the second radiator is only at the bottom 0.4mm .
  • the width of the fourth branch unit is increased 0.3mm
  • the width of part of the second branch unit is increased 0.3mm .
  • FIG. 4 As shown, in one embodiment, WIFI Schematic diagram of the reflection coefficient corresponding to the antenna .
  • Figure 5 for WIFI A schematic diagram of the antenna efficiency corresponding to the antenna.
  • the upper line represents the radiation efficiency, and the lower line represents the total efficiency.
  • FIG. 6 As shown, in an embodiment, WIFI Radiation patterns of the antenna in two different directions.
  • a wireless communication device is also provided, and the wireless communication device includes the aforementioned WIFI antenna.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

一种WIFI天线，包括：偶极子，所述偶极子包括相对间隔设置的第一辐射体和第二辐射体；馈电口，所述馈电口设于所述第一辐射体和所述第二辐射体相邻的端部；巴伦结构，所述巴伦结构包括：第一接入部、与所述第一接入部相对设置的第二接入部、连接所述第一接入部和所述第二接入部的中间部，所述中间部具有环形结构；所述巴伦结构的第一接入部在所述馈电口处与所述第一辐射体连接，所述第二接入部在所述馈电口处与所述第二辐射体连接。该WIFI天线的设置具有全向辐射、增益高以及实物稳定性高的特点，不仅提高了增益，而且又全面覆盖了WIFI频段。

Description

WIFI 天线及无线通信装置 技术领域
本申请涉及一种信号处理领域，具体涉及一种WIFI 天线及无线通信装置。
背景技术
随着无线通信技术的迅速发展，无线通信装置（比如，路由器）已经成为了现代人日常生活中必不可少的一部分。在无线通信装置中用来发射、接收无线电波以传递、交换无线电数据信号的天线无疑是最重要的组件之一。
技术问题
传统的天线往往存在增益低、无法全面覆盖WIFI 频段等问题。
为此，亟需要提出一种可以全面覆盖WIFI 频段且增益高的天线。
技术解决方案
本申请针对传统的天线增益低、无法全面覆盖WIFI 频段的问题，提供一种既可以提高增益，又可以全面覆盖 WIFI 频段的 WIFI 天线及无线通信装置。
一种WIFI 天线，包括：偶极子，所述偶极子包括相对间隔设置的第一辐射体和第二辐射体；馈电口，所述馈电口设于所述第一辐射体和所述第二辐射体相邻的端部；
巴伦结构，所述巴伦结构包括：第一接入部、与所述第一接入部相对设置的第二接入部、连接所述第一接入部和所述第二接入部的中间部，所述中间部具有环形结构；
所述巴伦结构的第一接入部在所述馈电口处与所述第一辐射体连接，所述第二接入部在所述馈电口处与所述第二辐射体连接。
在一个实施例中，所述第一辐射体包括：第一枝节单元和第二枝节单元；所述第二辐射体包括：第三枝节单元和第四枝节单元；所述第一枝节单元、第二枝节单元、第三枝节单元和第四枝节单元的结构均为“ L ”形结构。
     在一个实施例中，所述第一枝节单元和第三枝节单元呈中心对称设置或呈轴对称设置、所述第二枝节单元和所述第四枝节单元呈轴对称设置。
在一个实施例中，所述第一枝节单元的总长度大于所述第二枝节单元的总长度，所述第三枝节单元的总长度大于所述第四枝节单元的总长度；所述第一枝节单元和所述第三枝节单元形成工作于2.4GHz-2.5GHz 频段的天线，所述第二枝节单元和所述第四枝节单元形成工作于 5.15GHz-5.85GHz 频段的天线。
在一个实施例中，所述巴伦结构中的第一接入部与所述第二接入部平行设置，所述中间部包括：第一横条、第二横条和第一竖条，所述第一横条和所述第二横条平行，且位于所述第一竖条的同一侧，所述第一横条的一端与所述第一竖条的一端垂直连接，所述第二横条的一端与所述第一竖条的另一端垂直连接，以形成环状结构；所述第一横条的另一端与所述第一接入部垂直连接，所述第二横条的另一端与所述第二接入部垂直连接。
在一个实施例中，所述第一横条的长度大于所述第二横条的长度，所述第一接入部的长度大于所述第二接入部的长度。
在一个实施例中，所述第一枝节单元的一端与所述第二枝节单元的一端垂直连接，所述第三枝节单元的一端与所述第四枝节单元的一端垂直连接。
为实现上述目的，本申请还提供一种无线通信装置，包括上述的WIFI 天线。
有益效果
上述WIFI 天线包括偶极子，偶极子包括相对间隔设置的第一辐射体和第二辐射体，馈电口，馈电口设于第一辐射体和第二辐射体相邻的端部，巴伦结构包括：第一接入部、第二接入部以及连接所述第一接入部和第二接入部的中间部，该巴伦结构的中间部具有环形结构，该 WIFI 天线的设置具有全向辐射、增益高以及实物稳定性高的特点，不仅提高了增益，而且又全面覆盖了 WIFI 频段。
附图说明
图1 为一个实施例中 WIFI 天线的结构图；
图2 为一个实施例中 WIFI 天线中巴伦结构的结构图；
图3 为一个实施例中 WIFI 天线的各个部分的尺寸示意图；
图4 为一个实施例中 WIFI 天线对应的反射系数的仿真图；
图5 为一个实施例中 WIFI 天线对应的天线效率的仿真图；
图6 为一个实施例中 WIFI 天线的两个不同的方向辐射图。
本发明的实施方式
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。
如图1 所示，提出了一种 WIFI 天线，包括偶极子、馈电口 103 、巴伦结构 30 ；偶极子包括相对间隔设置的第一辐射体 10 和第二辐射体 20 ；馈电口 103 ，馈电口设于第一辐射体和第二辐射体相邻的端部，所述巴伦结构 30 包括：第一接入部 301 、与所述第一接入部 301 相对设置的第二接入部 302 、连接所述第一接入部和所述第二接入部的中间部 303 ，所述中间部具有环形结构；所述巴伦结构的第一接入部 301 在所述馈电口处与所述第一辐射体连接 10 ，所述第二接入部 301 在所述馈电口与所述第二辐射体 20 连接。
其中，巴伦是指平衡- 不平衡转换器。第一辐射体和第二辐射体组成的天线为偶极子天线，按照天线原理，偶极子天线属于平衡型天线，而连接天线的同轴电缆属于不平衡传输线，若将偶极子天线与同轴电缆直接连接，则同轴电缆的外皮就有高频电流流过，会影响天线的辐射，因此需要在天线和地之间加入巴伦结构。本申请中的巴伦结构为具有环形结构的巴伦结构，通过加入巴伦结构，该 WIFI 天线具有高增益、全向辐射以及实物稳定性高的特点。
在一个实施例中，巴伦结构分别与第一辐射体的中间部位进行连接，与第二辐射体的中间部位进行连接。第一辐射体和第二辐射体的形状可以根据需要自定义设置，比如，可以设置为弯折状。
参考图1 ，在一个实施例中，所述第一辐射体 10 包括：第一枝节单元 101 和第二枝节单元 102 ；所述第二辐射体 20 包括：第三枝节单元 201 和第四枝节单元 202 ；所述第一枝节单元 101 、第二枝节单元 102 、第三枝节单元 201 和第四枝节单元 202 的结构均为“ L ”形结构。第一枝节单元 101 与第三枝节单元 201 呈中心对称设置，第二枝节单元 102 和第四枝节单元 202 呈轴对称设置。
在另一个实施例中，所述第一枝节单元和第三枝节单元也可以呈轴对称设置，这个可以根据实际需求自定义设置。
参考图1 ，在一个实施例中，所述第一枝节单元的总长度大于所述第二枝节单元的总长度，所述第三枝节单元的总长度大于所述第四枝节单元的总长度；所述第一枝节单元和所述第三枝节单元形成工作于 2.4GHz-2.5GHz 频段的天线，所述第二枝节单元和所述第四枝节单元形成工作于 5.15GHz-5.85GHz 频段的天线。
其中，总长度是指组成枝节单元的“ L ”形状结构的竖条和横条的长度之和。 WIFI 频段涉及两个频段，第一枝节单元和第三枝节单元形成工作于 2.4GHz-2.5GHz 频段的天线，第二枝节单元和所述第四枝节单元形成工作于 5.15GHz-5.85GHz 频段的天线，实现了 WIFI 天线的全面辐射。
如图2 所示，在一个实施例中，所述巴伦结构中的第一接入 301 与所述第二接入部 302 平行设置，所述中间部 303 包括：第一横条 3031 、第二横条 3032 和第一竖条 3033 ，所述第一横条 3031 和所述第二横条 3032 平行，且位于所述第一竖条 3033 的同一侧，所述第一横条 3031 的一端与所述第一竖条 3033 的一端垂直连接，所述第二横条 3032 的一端与所述第一竖条 3033 的另一端垂直连接，以形成环状结构；
所述第一横条3031 的另一端与所述第一接入部 301 垂直连接，所述第二横条 3032 的另一端与所述第二接入部 302 垂直连接。
参考图2 ，在一个实施例中，所述第一横条的长度大于所述第二横条的长度，所述第一接入部的长度大于所述第二接入部的长度。
在一个实施例中，所述第一枝节单元的一端与所述第二枝节单元的一端垂直连接，所述第三枝节单元的一端与所述第四枝节单元的一端垂直连接。
在一个实施例中，根据覆盖场景的需要，可以多个WIFI 天线通过不同倾角组合，以便增加垂直方向的 WIFI 覆盖范围。
如图3 所示，在一个实施例中， WIFI 天线的各个部分的尺寸具体设置如图 3 中所示。其中，第一枝节单元的总长度为 8mm+15.9mm=23.9mm ；宽度为 1mm 。第二枝节单元的总长度为 9.7mm+6mm=15.7mm; 第三枝节单元的总长度为 8mm+14.9mm=22.9mm ，第四枝节单元的总长度为 9.4mm+6mm=15.4mm ；巴伦结构的第一接入部的长度为 7.5mm ，第二接入部的长度为 5mm ，中间部的第一横条的长度为 6mm ，第一竖条的长度为 3mm ，第二横条的长度为 3mm 。其他部分的尺寸如图中标示，比如，第一辐射体和第二辐射体的间隙在最底部只有 0.4mm 。为了仿真优化，第四枝节单元中的部分宽度增加了 0.3mm ，第二枝节单元中的部分宽度增加了 0.3mm 。
如图4 所示，在一个实施例中， WIFI 天线对应的反射系数的示意图 。
如图5 为 WIFI 天线对应的天线效率的示意图，上面的线表示辐射效率，下面的线表示总效率。
如图6 所示，为一个实施例中， WIFI 天线的两个不同的方向辐射图。
在一实施例中，还提出了一种无线通信装置，该无线通信装置中包含有上述WIFI 天线。
以上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。
以上所述实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对本申请专利范围的限制。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，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (8)

  1. 一种WIFI天线，其特征在于，包括：
    偶极子，所述偶极子包括相对间隔设置的第一辐射体和第二辐射体；
    馈电口，所述馈电口设于所述第一辐射体和所述第二辐射体相邻的端部；
    巴伦结构，所述巴伦结构包括：第一接入部、与所述第一接入部相对设置的第二接入部、连接所述第一接入部和所述第二接入部的中间部，所述中间部具有环形结构；
    所述巴伦结构的第一接入部在所述馈电口处与所述第一辐射体连接，所述第二接入部在所述馈电口处与所述第二辐射体连接。
  2. 根据权利要求1所述的天线，其特征在于，所述第一辐射体包括：第一枝节单元和第二枝节单元；所述第二辐射体包括：第三枝节单元和第四枝节单元；
    所述第一枝节单元、第二枝节单元、第三枝节单元和第四枝节单元的结构均为“L”形结构。
  3. 根据权利要求2所述的天线，其特征在于，所述第一枝节单元和第三枝节单元呈中心对称设置或呈轴对称设置、所述第二枝节单元和所述第四枝节单元呈轴对称设置。
  4. 根据权利要求3所述的天线，其特征在于，所述第一枝节单元的总长度大于所述第二枝节单元的总长度，所述第三枝节单元的总长度大于所述第四枝节单元的总长度；
    所述第一枝节单元和所述第三枝节单元形成工作于2.4GHz-2.5GHz频段的天线，所述第二枝节单元和所述第四枝节单元形成工作于5.15GHz-5.85GHz频段的天线。
  5. 根据权利要求1所述的天线，其特征在于，所述巴伦结构中的第一接入部与所述第二接入部平行设置，所述中间部包括：第一横条、第二横条和第一竖条，所述第一横条和所述第二横条平行，且位于所述第一竖条的同一侧，所述第一横条的一端与所述第一竖条的一端垂直连接，所述第二横条的一端与所述第一竖条的另一端垂直连接，以形成环状结构；
    所述第一横条的另一端与所述第一接入部垂直连接，所述第二横条的另一端与所述第二接入部垂直连接。
  6. 根据权利要求5所述的天线，其特征在于，所述第一横条的长度大于所述第二横条的长度，所述第一接入部的长度大于所述第二接入部的长度。
  7. 根据权利要求2所述的天线，其特征在于，所述第一枝节单元的一端与所述第二枝节单元的一端垂直连接，所述第三枝节单元的一端与所述第四枝节单元的一端垂直连接。
  8. 一种无线通信装置，其特征在于，包括如权利要求1-7任一项所述的WIFI天线。
     
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