WO2017117944A1 - 双频wi-fi天线以及移动终端 - Google Patents

双频wi-fi天线以及移动终端 Download PDF

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Publication number
WO2017117944A1
WO2017117944A1 PCT/CN2016/088672 CN2016088672W WO2017117944A1 WO 2017117944 A1 WO2017117944 A1 WO 2017117944A1 CN 2016088672 W CN2016088672 W CN 2016088672W WO 2017117944 A1 WO2017117944 A1 WO 2017117944A1
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WIPO (PCT)
Prior art keywords
antenna
frequency
dual
mobile terminal
microstrip line
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PCT/CN2016/088672
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English (en)
French (fr)
Inventor
李彪
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Le Holdings Beijing Co Ltd
Lemobile Information Technology (Beijing) Co Ltd
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Priority to US15/242,047 priority Critical patent/US20170194694A1/en
Publication of WO2017117944A1 publication Critical patent/WO2017117944A1/zh
Anticipated expiration legal-status Critical
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    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines

Definitions

  • the present application relates to the field of antenna technologies, and in particular, to a dual-band WI-FI antenna and a mobile terminal.
  • WI-FI Wireless Fidelity
  • WI-FI mobile phones are one of them.
  • WI-FI has greater coverage and higher transmission rates, so WI-FI mobile terminals have become the fashion trend of the mobile communication industry.
  • WLAN Wireless Local Area Networks
  • WLAN-based broadband data applications such as streaming media or online games, are worthy of user expectations.
  • users can make long-distance calls (including international long distance calls), browse the web, send and receive emails, download music, and transfer digital photos without worrying about slow speed and high cost.
  • WI-FI antenna In the related existing WI-FI antenna design, it is a conventional PIFA (Planar Inverted-F Antenna), monopole (unipole) or IFA (Inverted-F antenna) antenna.
  • the type implements dual-band (ie, 2.4 GHz and 5 GHz) full-band coverage to achieve better bandwidth and radiation efficiency to meet customer needs.
  • this dual-frequency WI-FI antenna design also has shortcomings, and its disadvantage is: this dual-frequency WI-FI
  • the antenna requires a relatively large space area and a clearance area, which brings an unbreakable bottleneck to the overall architecture consistency and PCB (Printed Circuit Board) layout.
  • the present application provides a dual-frequency WI-FI antenna and a mobile terminal, which is coupled to generate resonant radiation of another single-frequency antenna by laying a microstrip line around a WI-FI single-frequency antenna existing inside the mobile terminal. Solve the above problem.
  • a dual-frequency WI-FI antenna includes: a first single-frequency antenna disposed on a main board of a mobile terminal, the first single-frequency antenna including a ground portion and a power feeding portion, the grounding The portion is electrically connected to a grounding wire on the mainboard of the mobile terminal, the feeding portion is electrically connected to a radio frequency chip on the mainboard of the mobile terminal; and a microstrip line laid around the feeding portion, the micro The strip line is electrically connected to a ground line on the mobile terminal motherboard, and the microstrip line is coupled to the feed portion to generate resonant radiation of the WI-FI second single frequency antenna.
  • the first single frequency antenna is a WI-FI 2.4G single frequency antenna
  • the second single frequency antenna is a WI-FI 5G single frequency antenna.
  • the interval between the feeding portion and the microstrip line is 1.5 mm to 2 mm.
  • the length of the microstrip line is a quarter wavelength of the operating frequency of the first single frequency antenna.
  • the 2.4G single frequency antenna is a PIFA antenna.
  • the back shell of the mobile terminal serves as a radiator of the dual-frequency WI-FI antenna.
  • a mobile terminal includes a main board and a dual frequency WI-FI antenna, wherein the dual frequency WI-FI antenna includes a first single frequency antenna disposed on the main board,
  • the first single-frequency antenna includes a grounding portion and a power feeding portion, the grounding portion is electrically connected to a grounding wire on the main board, and the feeding portion is electrically connected to a radio frequency chip on the main board,
  • the FI antenna further includes a microstrip line laid around the power feeding portion, the microstrip line is electrically connected to a ground line on the mobile terminal main board, and the microstrip line is coupled with the power feeding portion to generate a second Resonant radiation of a single-frequency antenna.
  • the first single frequency antenna is a WI-FI 2.4G single frequency antenna
  • the second single frequency antenna is a WI-FI 5G single frequency antenna.
  • the interval between the feeding portion and the microstrip line is 1.5 mm to 2 mm.
  • the length of the microstrip line is a quarter wavelength of the operating frequency of the first single frequency antenna.
  • the dual-frequency WI-FI antenna provided by the embodiment of the present application includes: a first single-frequency antenna disposed on a mainboard of the mobile terminal, where the first single-frequency antenna includes a grounding portion and a feeding portion, and the grounding portion is The grounding wire on the mobile terminal main board is electrically connected, and the feeding part is electrically connected to the radio frequency chip on the mobile terminal main board, wherein the dual-frequency WI-FI antenna further includes a micro-laying layer around the feeding part a strip line, the microstrip line being electrically connected to a ground line on the mobile terminal main board, the micro strip line being coupled with the feed portion to generate resonant radiation of a WI-FI second single frequency antenna.
  • the space required by the single-frequency WI-FI achieves the dual-frequency antenna design, which greatly saves the space requirement of the dual-frequency WI-FI antenna and reduces the clearance area, and at the same time, because of the parasitic resonance generated by the coupling, around the antenna.
  • the sensitivity of the environmental impact is reduced, the consistency of the assembly environment of the whole machine is also reduced, and the production time of the whole machine is effectively shortened.
  • FIG. 1 is a schematic view of an outer surface of a back cover of a mobile phone according to an embodiment of the present application
  • FIG. 2 is a schematic diagram of a printed circuit board disposed in a mobile phone according to another embodiment of the present application.
  • Microstrip line A microwave transmission line consisting of a single conductor strip supported on a dielectric substrate.
  • Parasitic capacitance In addition to the inter-plate capacitance, the sensor also has a capacitive connection with the surrounding body (various components and even the human body). This capacitance is called parasitic capacitance. It not only changes the capacitance of the capacitive sensor, but also because the sensor itself has a small capacitance and the parasitic capacitance is extremely unstable, which also causes the sensor characteristics to be unstable and cause serious interference to the sensor. Distributed between the wires, between the coil and the case, and between the components, these capacitors are called parasitic capacitors. Their values are small, but they are an important cause of interference.
  • Parasitic inductance Due to the continuous increase of frequency, the influence of lead parasitic inductance and parasitic capacitance is more serious, causing greater electrical stress on the device (expressed as overvoltage and overcurrent glitch).
  • Parasitic resonance A resonance phenomenon occurs at more frequencies in the resonant circuit by element parasitic action, called parasitic resonance.
  • the mobile terminal in this application is not limited to a mobile phone, and may be other devices, such as a tablet computer or other devices that are used for wireless communication in a WI-FI antenna.
  • 100 and 101 are radiators corresponding to the mobile phone WI-FI antenna in this embodiment.
  • 100 or 101 can be made into the radiator of the mobile phone antenna.
  • the radiator can be located above, below, or in the middle of the back cover of the mobile phone, and there is no restriction here.
  • FIG. 2 is a schematic diagram of a printed circuit board disposed in a mobile phone according to another embodiment of the present application.
  • 20 is the PCB board
  • 200 is the RF chip of the PCB
  • the RF chip is used together with the mobile phone antenna to transmit and receive electromagnetic wave signals.
  • 201 and 202 are the grounding portion and the feeding portion of the 2.4G single-frequency antenna
  • the grounding portion 201 is electrically connected to the grounding wire (not shown) of the mobile phone main board
  • the feeding portion 202 is electrically connected to the radio frequency chip 200 of the mobile phone main board
  • 203 is micro The line is connected, and the microstrip line is electrically connected to the grounding portion 201 of the mobile phone main board.
  • the WI-FI 2.4G single frequency antenna is a PIFA antenna.
  • PIFA antenna Currently in hand Monopole, LOOP and PIFA antennas are often used in the machine as WI-FI antennas.
  • the PIFA antenna is smaller in size than the LOOP, larger than the monopole antenna, relatively stable in performance, and relatively high in transmission efficiency, so it is widely used in different types of mobile phones.
  • the antenna key parameters such as the antenna resonance bandwidth, the radiation efficiency, and the matching impedance can be effectively controlled, thereby achieving good antenna radiation efficiency and improving transmission efficiency. It has been found through practice that an interval is provided between the feeding portion 202 and the microstrip line 203 to facilitate the coupling effect.
  • the coupling effect is better when the spacing width is from 1.5 mm to 2 mm (including 1.5 mm and 2 mm).
  • the coupling area between the microstrip line and the feeding portion 202 and the magnitude of the electromagnetic induction can be adjusted to achieve the purpose of moving the bandwidth, so that the generated resonance frequency falls within the 5G WI-FI frequency range.
  • Internal ie, 5.15 GHz - 5.875 GHz
  • broaden the resonant frequency interval ie, antenna bandwidth
  • the length of the microstrip line 203 is set to be a quarter wavelength of the operating frequency of the first single frequency antenna.
  • the WI-FI dual frequency (2.4G+) is realized by the method of generating the parasitic resonance by the microstrip line coupling.
  • 5G) Performance of the antenna Moreover, by adjusting the length L of the microstrip line to achieve the purpose of moving the bandwidth, the antenna bandwidth is optimized and the matching is achieved by adjusting the pitch W of the microstrip line and the feeding portion to improve the transmission efficiency.
  • the embodiment of the present application realizes spatial separation of the resonator and the radiator of the dual-frequency antenna.
  • the resonance of the WI-FI5G single-frequency antenna is generated by the microstrip line, and the radiation performance is completed by the shared mobile phone casing, so that the radiation is performed.
  • the WI-FI5G single-frequency antenna can also guarantee good radiation performance.
  • a mobile terminal including a main board, wherein the mobile terminal further includes a dual-frequency WI-FI antenna, and the dual-frequency WI-FI antenna includes a main-frequency WI-FI antenna disposed on the main board.
  • the first single-frequency antenna includes a grounding portion and a power feeding portion, the grounding portion is electrically connected to a grounding wire on the main board, and the feeding portion and the radio frequency chip on the main board are electrically connected Even
  • the dual-band WI-FI antenna further includes a microstrip line disposed around the power feeding portion, the microstrip line being electrically connected to a ground line on the mobile terminal main board, the microstrip line Coupling with the feed portion produces resonant radiation of the second single frequency antenna.
  • the first single frequency antenna is a WI-FI 2.4G single frequency antenna
  • the second single frequency antenna is a WI-FI 5G single frequency antenna
  • the spacing between the feed portion and the microstrip line is between 1.5 mm and 2 mm.
  • the length of the microstrip line is a quarter of a wavelength of the operating frequency of the first single frequency antenna.
  • the space required by the single-frequency WI-FI is used to achieve the dual-frequency antenna design, which greatly saves the space requirement of the dual-frequency WI-FI antenna, reduces the clearance area, and achieves the antenna and the PA by optimizing the slot distance.
  • the good matching state saves the BOM cost; at the same time, because the parasitic resonance is generated by the coupling, the sensitivity to the environmental impact of the antenna is reduced, the consistency requirement for the assembly environment of the whole machine is also reduced, and the production time of the whole machine is effectively shortened.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Waveguide Aerials (AREA)
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Abstract

双频WI-FI天线以及移动终端，双频WI-FI天线包括：设置于移动终端主板上的第一单频天线，第一单频天线包括接地部和馈电部，接地部与移动终端主板上的接地线电连接，馈电部与移动终端主板上的射频芯片电连接，所述双频WI-FI天线还包括在馈电部周围铺设的微带线，微带线与移动终端主板上的接地线电连接，微带线与馈电部耦合产生WI-FI第二单频天线的谐振辐射。

Description

双频WI-FI天线以及移动终端
相关申请的交叉参考
本申请要求于2016年1月6日提交中国专利局、申请号为201610009056.2、发明名称为“双频WI-FI天线以及移动终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及天线技术领域，具体涉及双频WI-FI天线以及移动终端。
背景技术
WI-FI(Wireless Fidelity，无线局域网)在移动终端上的应用越来越广泛，例如，WI-FI手机就是其中一份子。与早前应用于移动终端上的蓝牙技术不同，WI-FI具有更大的覆盖范围和更高的传输速率，因此WI-FI移动终端成为了目前移动通信业界的时尚潮流。
由于WI-FI频段在世界范围内是无需任何电信运营执照的免费频段，因此，WLAN(Wireless Local Area Networks，无线局域网络)无线设备提供了一个世界范围内可以使用的、费用极其低廉且数据带宽极高的无线空中接口。用户可以在WI-FI覆盖区域内快速浏览网页，随时随地接听拨打电话。而其它一些基于WLAN的宽带数据应用，如，流媒体或网络游戏等功能更是值得用户期待。有了WI-FI功能，用户在打长途电话(包括国际长途)、浏览网页、收发电子邮件、音乐下载以及数码照片传递等，再无需担心速度慢和花费高的问题。
在相关的现有WI-FI天线设计中，是通过传统的PIFA(Planar Inverted-F Antenna，平面倒F天线)、monopole(单极子)或IFA(Inverted-F antenna，倒F天线)等天线类型实现双频(即，2.4GHz和5GHz)全频段覆盖，从而达到比较好的带宽和辐射效率，满足客户的使用需求。
但是，这种双频WI-FI天线设计也存在缺点，其缺点是：这种双频WI-FI 天线需要比较大的空间面积以及净空区域，这给整机架构一致性以及PCB(Printed Circuit Board，印制电路板)布局都带来了不可突破的瓶颈。
发明内容
有鉴于此，本申请提供双频WI-FI天线以及移动终端，通过在移动终端内部原有的一个WI-FI单频天线周围铺设微带线，耦合产生另一个单频天线的谐振辐射，从而解决上述问题。
根据本申请的一个方面，提供一种双频WI-FI天线，包括：设置于移动终端主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述移动终端主板上的接地线电连接，所述馈电部与所述移动终端主板上的射频芯片电连接；以及，在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生WI-FI第二单频天线的谐振辐射。
可选地，所述第一单频天线为WI-FI2.4G单频天线，所述第二单频天线为WI-FI 5G单频天线。
可选地，所述馈电部与所述微带线之间的间隔为1.5mm-2mm。
可选地，所述微带线的长度为第一单频天线工作频率的四分之一波长。
可选地，所述2.4G单频天线为PIFA天线。
可选地，所述移动终端的后壳作为所述双频WI-FI天线的辐射体。
根据本申请的另一方面，提供一种移动终端，包括主板和双频WI-FI天线；其中，所述双频WI-FI天线包括设置于所述主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述主板上的接地线电连接，所述馈电部与所述主板上的射频芯片电连接，所述双频WI-FI天线还包括在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生第二单频天线的谐振辐射。
可选地，所述第一单频天线为WI-FI2.4G单频天线，所述第二单频天线为WI-FI 5G单频天线。
可选地，所述馈电部与所述微带线之间的间隔为1.5mm-2mm。
可选地，所述微带线的长度为第一单频天线工作频率的四分之一波长。
本申请实施例提供的双频WI-FI天线，包括：设置于移动终端主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述移动终端主板上的接地线电连接，所述馈电部与所述移动终端主板上的射频芯片电连接，其中，所述双频WI-FI天线还包括在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生WI-FI第二单频天线的谐振辐射。利用单频WI-FI所需要的空间面积达到双频天线设计的目的，大大节省了双频WI-FI天线的空间面积需求，减小净空面积，同时因为是靠耦合产生寄生谐振，对天线周围环境影响的敏感性降低，对整机装配环境一致性要求也降低，有效缩短整机生产时间。
附图概述
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1是本申请实施例的手机后盖外表面的示意图；
图2是本申请另一实施例的手机内设置印刷电路板的的示意图。
本申请的较佳实施方式
下面将参照附图更详细地描述本公开的示例性实施例。虽然附图中显示了本公开的示例性实施例，然而应当理解，可以以各种形式实现本公开而不应被这里阐述的实施例所限制。相反，提供这些实施例是为了能够更透彻地理解本公开，并且能够将本公开的范围完整的传达给本领域的技术人员。
术语说明：
微带线：由支在介质基片上的单一导体带构成的微波传输线。
寄生电容：传感器除有极板间电容外，极板与周围体(各种元件甚至人体)也产生电容联系，这种电容称为寄生电容。它不但改变了电容传感器的电容量，而且由于传感器本身电容量很小，寄生电容极不稳定，这也导致传感器特性不稳定，对传感器产生严重干扰。分布在导线之间、线圈与机壳之间以及某些元件之间的分布电容等，这些电容称为寄生电容，他们的数值虽小，但是却是引起干扰的重要原因。
寄生电感：由于频率的不断提高，致使引线寄生电感、寄生电容的影响愈加严重，对器件造成更大的电应力(表现为过电压、过电流毛刺)。
寄生谐振：通过元件寄生作用，在谐振电路中的更多频率上产生谐振现象，称为寄生谐振。
本申请实施例中，在原有WI-FI的一个单频天线的空间基础上，不需要增加额外的天线空间和净空区域，利用微带线耦合产生寄生谐振的方法实现双频WI-FI(如，2.4G+5G)天线的性能。
下面以手机为例对本申请的技术方案进行解释说明。需要说明的是，本申请中的移动终端不限于手机，也可以为其它设备，如，平板电脑或其它应用于WI-FI天线实现无线通信的设备。
图1是本申请实施例的手机后盖外表面的示意图。100和101在本实施例中的手机WI-FI天线对应的辐射体。通过100和/或101对应手机金属后盖内表面相应位置设置馈电点，可以使100或101成为手机天线的辐射体。辐射体可以位于手机后盖上方，下方，或者中间位置，这里不做限制。
图2是本申请另一实施例的手机内设置印刷电路板的的示意图。其中，20为PCB板，200为PCB的射频芯片，射频芯片和手机天线一起，用于发送和接收电磁波信号。201和202是2.4G单频天线的接地部和馈电部，接地部201和手机主板的接地线(未示)电连接，馈电部202和手机主板的射频芯片200电连接，203是微带线，微带线和手机主板的接地部201电连接。通过微带线203和馈电部202耦合，能够拓展原来WI-FI2.4G单频天线的谐振频率，实现WI-FI5G单频天线的工作效果。
在一个可选的实施例中，WI-FI2.4G单频天线为PIFA天线。目前在手 机中常使用monopole、LOOP和PIFA天线作为WI-FI天线。PIFA天线由于需要的空间面积比LOOP小，比monopole天线大，性能相对较稳定，传输效率也比较高，所以在不同种类的手机中应用相对较广。
通过调整馈电部202和微带线203之间的间隔宽度可以有效控制天线谐振带宽、辐射效率以及匹配阻抗等天线关键参数，从而达到良好天线辐射效率，提高传输效率的目的。经过实践发现，馈电部202和微带线203之间设置有间隔有利于耦合效果。
在一个可选的实施例中，当上述间隔宽度为1.5mm-2mm(包含1.5mm和2mm)时，耦合效果较佳。
另外，通过调整微带线的长度，可以调整微带线和馈电部202之间的耦合面积和电磁感应大小，从而达到移动带宽的目的，使产生的谐振频率落在5G WI-FI频段范围内(即，5.15GHz-5.875GHz)，并尽可能拓宽谐振频率区间(即，天线带宽)。
在一个可选的实施例中，微带线203长度设定为第一单频天线的工作频率的四分之一波长。
根据本申请实施例，在原有WI-FI2.4G单频天线容积基础上，不需要额外增加天线容积和净空区域，利用微带线耦合产生寄生谐振的方法实现WI-FI双频(2.4G+5G)天线的性能。并且，通过调节微带线的长度L达到移动带宽的目的，通过调试微带线和馈电部的间距W来优化拓展天线带宽和达到良好匹配，提高传输效率。
另外，本申请实施例实现了双频天线的谐振体和辐射体空间分离，例如WI-FI5G单频天线的谐振是由微带线产生，而辐射性能通过共用的手机外壳来完成空间辐射，这样在外部环境比较恶劣的情况下，也能保证WI-FI5G单频天线的良好辐射性能。
根据上述的双频WI-FI天线，提供一种移动终端，包括主板，其中，所述移动终端还包括双频WI-FI天线，所述双频WI-FI天线包括设置于所述主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述主板上的接地线电连接，所述馈电部与所述主板上的射频芯片电连 接，其中，所述双频WI-FI天线还包括在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生第二单频天线的谐振辐射。
在一个可选实施例中，所述第一单频天线为WI-FI2.4G单频天线，所述第二单频天线为WI-FI 5G单频天线。
在另一个可选实施例中，所述馈电部与所述微带线之间的间隔为1.5mm-2mm。
在另一个可选实施例中，所述微带线的长度为第一单频天线的工作频率的四分之一波长。
本申请实施例利用单频WI-FI所需要的空间面积达到双频天线设计的目的，大大节省了双频WI-FI天线的空间面积需求，减小净空面积，通过优化缝隙距离达到天线和PA的良好匹配状态，节省BOM成本；同时因为是靠耦合产生寄生谐振，对天线周围环境影响的敏感性降低，对整机装配环境一致性要求也降低，有效缩短整机生产时间。
以上所述仅为本申请的优选实施例，并不用于限制本申请，对于本领域技术人员而言，本申请可以有各种改动和变化。凡在本申请的精神和原理之内所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (10)

  1. 一种双频WI-FI天线，其特征在于，包括：
    设置于移动终端主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述移动终端主板上的接地线电连接，所述馈电部与所述移动终端主板上的射频芯片电连接；以及，
    在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生WI-FI第二单频天线的谐振辐射。
  2. 根据权利要求1所述的双频WI-FI天线，其中，所述第一单频天线为WI-FI2.4G单频天线，所述第二单频天线为WI-FI5G单频天线。
  3. 根据权利要求1所述的双频WI-FI天线，其中，所述馈电部与所述微带线之间的间隔为1.5mm-2mm。
  4. 根据权利要求1所述的双频WI-FI天线，其中，所述微带线的长度为所述第一单频天线的工作频率的四分之一波长。
  5. 根据权利要求2所述的双频WI-FI天线，其中，所述2.4G单频天线为平面倒F天线PIFA天线。
  6. 根据权利要求1至5任一项所述的双频WI-FI天线，其中，所述移动终端的后盖作为所述双频WI-FI天线的辐射体。
  7. 一种移动终端，其特征在于，包括：
    主板；
    双频WI-FI天线，其中，所述双频WI-FI天线包括设置于所述主板上的第一单频天线，所述第一单频天线包括接地部和馈电部，所述接地部与所述主板上的接地线电连接，所述馈电部与所述主板上的射频芯片电连接，所述双频WI-FI天线还包括在所述馈电部周围铺设的微带线，所述微带线与所述移动终端主板上的接地线电连接，所述微带线与所述馈电部耦合产生第二单频天线的谐振辐射。
  8. 根据权利要求7所述的移动终端，其中，所述第一单频天线为WI-FI2.4G单频天线，所述第二单频天线为WI-FI5G单频天线。
  9. 根据权利要求7所述的移动终端，其中，所述馈电部与所述微带线之间的间隔为1.5mm-2mm。
  10. 根据权利要求7所述的移动终端，其中，所述微带线的长度为所述第一单频天线的工作频率的四分之一波长。
PCT/CN2016/088672 2016-01-06 2016-07-05 双频wi-fi天线以及移动终端 Ceased WO2017117944A1 (zh)

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