WO2011113389A2 - Planar antenna of wireless terminal and wireless terminal - Google Patents

Planar antenna of wireless terminal and wireless terminal Download PDF

Info

Publication number
WO2011113389A2
WO2011113389A2 PCT/CN2011/073351 CN2011073351W WO2011113389A2 WO 2011113389 A2 WO2011113389 A2 WO 2011113389A2 CN 2011073351 W CN2011073351 W CN 2011073351W WO 2011113389 A2 WO2011113389 A2 WO 2011113389A2
Authority
WO
WIPO (PCT)
Prior art keywords
radiator
planar antenna
wireless terminal
antenna
antenna according
Prior art date
Application number
PCT/CN2011/073351
Other languages
French (fr)
Chinese (zh)
Other versions
WO2011113389A3 (en
Inventor
李正浩
范毅
兰尧
孙树辉
帅培华
雷平
Original Assignee
华为终端有限公司
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 华为终端有限公司 filed Critical 华为终端有限公司
Priority to PCT/CN2011/073351 priority Critical patent/WO2011113389A2/en
Priority to CN201180000347.0A priority patent/CN102171888B/en
Publication of WO2011113389A2 publication Critical patent/WO2011113389A2/en
Publication of WO2011113389A3 publication Critical patent/WO2011113389A3/en

Links

Classifications

    • 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
    • H01Q1/12—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

Definitions

  • the present invention relates to the field of communications, and in particular, to a planar antenna and a wireless terminal of a wireless terminal.
  • the prior art provides the following two types of antennas, including:
  • the first type of antenna is a PIFA (Planar Inverted F Antenna), wherein the PIFA antenna includes a bracket and a metal wire, and the metal wire is disposed on the bracket. If you want to increase the bandwidth of your PIFA antenna, you need to raise or lengthen the bracket to place a longer metal wire on the bracket.
  • PIFA Planar Inverted F Antenna
  • the second antenna is a monopole planar antenna, wherein the monopole planar antenna includes a monopole and a PCB
  • monopole is a rectangular piece of metal, and monopole printed on the PCB to reduce the size of the monopole antenna.
  • the PIFA antenna since the antenna is disposed on the bracket, if the bandwidth of the PIFA antenna is large, the PIFA antenna will occupy a large volume;
  • the existing monopole planar antenna has a lower bandwidth.
  • the present invention provides a planar antenna and a wireless terminal of a wireless terminal.
  • the technical solution is as follows:
  • a planar antenna of a wireless terminal comprising:
  • a first radiator, a second radiator, the first radiator includes a feeding point, the second radiator includes a grounding point; the first radiator and the second radiator are located in a same plane and the first a coupling gap is formed between the radiator and the second radiator, and a feeding point of the first radiator is electrically connected to a signal end of the printed circuit board of the terminal, a grounding point of the second radiator and the The ground terminal of the printed circuit board is electrically connected.
  • a wireless terminal comprising: the planar antenna.
  • the planar antenna includes a first radiator and a second radiator, the first radiator and the second radiation are located on the same plane, thereby reducing the volume of the antenna; the feeding point of the first radiator is directly connected to the PCB of the terminal
  • the signal terminals of the board are electrically connected, so that the first radiator can generate high frequency electromagnetic waves, the grounding point of the second radiator is directly connected to the ground end of the PCB board, and the first radiator and the second radiator have coupling therebetween.
  • the gap is such that when the first radiator radiates electromagnetic waves, the second radiation body generates and radiates low-frequency electromagnetic waves, thereby increasing the range of frequencies at which the antenna generates electromagnetic waves and increasing the bandwidth of the antenna.
  • FIG. 1 is a schematic diagram of a first planar antenna according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic diagram of a second planar antenna according to Embodiment 1 of the present invention.
  • FIG. 3 is a schematic diagram of a third planar antenna according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram of a fourth planar antenna according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic diagram of a wireless terminal according to Embodiment 2 of the present invention. detailed description
  • an embodiment of the present invention provides a planar antenna of a wireless terminal, including:
  • the first radiator 1 includes a feeding point 11, and the second radiator 2 includes a grounding point 21;
  • the first radiator 1 and the second radiator 2 are located on the same plane and have a coupling gap 4 between the first radiator 1 and the second radiator 2, the feeding point 11 of the first radiator 1 and the PCB board 3 of the terminal
  • the signal terminals are electrically connected, and the grounding point 21 of the second radiator 2 is electrically connected to the grounding end of the PCB board 3.
  • the first radiator 1 and the second radiator 2 may both be printed on the PCB 3.
  • the first radiator 1 and the second radiator 2 are both metal sheets.
  • the PCB board 3 outputs the alternating RF current signal from the signal end to the first radiator 1, the RF current signal flows in the first radiator 1, and when the RF current signal flows to the edge of the first radiator 1,
  • the first radiator 1 converts the radio frequency current signal into an electromagnetic wave and radiates it outward. Since the first radiator 1 is directly electrically connected to the signal end of the PCB board 3, the electromagnetic wave radiated by the first radiator 1 is a high-frequency electromagnetic wave.
  • the first radiator 1 and the second radiator 2 have a coupling gap therebetween, and the grounding point 21 of the second radiator 2 is electrically connected to the ground end of the PCB board 3, so when the first radiator 1 radiates electromagnetic waves, Coupling between the first radiator 1 and the second radiator 2 causes the second radiator 2 to generate an alternating current signal, and the generated current signal flows in the second radiator 2, and the generated current signal flows to the first At the edge of the second radiator 2, the second radiator 2 converts the generated current signal into an electromagnetic wave and radiates it outward. Since the second radiation body 2 generates a current signal by coupling, and then converts the generated current signal into electromagnetic wave radiation, the electromagnetic wave radiated by the second radiator 2 is a low-frequency electromagnetic wave.
  • the first radiator 1 generates a high-frequency electromagnetic wave
  • the second radiator 2 generates a low-frequency electromagnetic wave. Therefore, the planar antenna provided in this embodiment has a wide bandwidth.
  • the first radiator 1 and the second radiator 2 are both metal sheets, and therefore, the first radiator 1 and the second radiator 2 can be directly printed on the PCB board. 3, this can reduce the volume occupied by the planar antenna.
  • the first radiator 1 may have a rectangular structure, and the feeding point may be located at an intermediate position on one long side of the first radiator 1, so that the current signal outputted by the PCB 3 can be uniformly distributed on the first radiator 1. distributed.
  • the second radiator 2 is also a rectangular structure, the contact 21 is located on one short side of the second radiator 2, and the second radiator 2 has a coupling gap between the first radiator 1 and the first radiator 1. 4.
  • the second radiator 2 includes a first portion 22 and a second portion 23, both of which have a rectangular structure, and the grounding point 21 is located at the first end 221 of the first portion 22.
  • a long side of the first portion 22 and a short side of the first radiator 1 have a coupling slit 41, and the second end 222 of the first portion 22 is connected to the first end 231 of the second portion 23, the first portion
  • the second portion 23 is perpendicular to the second portion 23, and the second portion 23 has a weigh gap 42 between the long sides of the first radiator 1 which are not connected to the feed point 11.
  • the second radiator 2 when the first radiator 1 radiates electromagnetic waves outward, the second radiator 2 generates an alternating current signal, and when the generated current signal flows to the edge of the second radiator 2, the second radiator 2 generates electromagnetic waves and Radiation outside.
  • the second radiator 2 has a turning portion at the junction of the first portion 22 and the second portion 23. When the current signal in the second radiator 2 flows to the turning portion, the current signal generates a 90 degree turn, so that the turning portion A relatively high frequency electromagnetic wave is generated and radiated outward.
  • the second radiator 2 further includes a third portion 24 and a fourth portion 25;
  • the third portion 24 is a triangular structure
  • the fourth portion 25 is a rectangular structure
  • the second end 232 of the second portion 23 is The first end 251 of the fourth portion 25 is connected to the same side of the third portion 24, the second portion 23 and the fourth portion 25 are parallel to each other and have a gap 43 between the second portion 23 and the fourth portion 25.
  • the third portion 24 may be a right triangle, and the second end 232 of the second portion 23 and the first end 251 of the fourth portion 25 are both at the same right angle as the third portion 24. Connected. Further, the second end 232 of the second portion 23 and the first end 251 of the fourth portion 25 may both be perpendicular to the right angle side.
  • a top corner of the third portion 24 is adjacent to the second end 232 of the second portion 23 such that the oblique side of the third portion 24 is inclined downward; or, as shown in FIG. 4, the third portion A top corner of 24 is adjacent the first end 251 of the fourth portion 25 such that the hypotenuse of the third portion 24 slopes upward.
  • the second radiator 2 when the first radiator 1 radiates electromagnetic waves outward, the second radiator 2 generates an alternating current signal, and when the generated current signal flows to the edge of the second radiator 2, the second emitter 2 generates a low frequency.
  • the electromagnetic waves are shot out.
  • the second radiator 2 has a turning portion at the junction of the first portion 22 and the second portion 23.
  • the current signal When the current signal in the second radiator 2 flows to the turning portion, the current signal generates a 90 degree turn, so that the turning portion generates the frequency.
  • the larger electromagnetic wave radiates outward; in addition, when the current signal flows to the third portion 24, the current signal produces a 180 degree turn in the third portion 24, thereby causing the third portion 24 to generate a relatively high frequency electromagnetic wave and outward Radiation, and causing current flow in the second portion 23 to flow in opposite directions to the current in the fourth portion 25, causes the second portion 23 and the fourth portion 25 to generate energy radiation, increasing the bandwidth of the planar antenna.
  • a gap between the second portion 23 and the fourth portion 25 increases the length of the second radiator 2, so that the second radiator 2 can generate electromagnetic waves having a wide frequency range, thereby further increasing the bandwidth of the planar antenna.
  • the energy utilization efficiency is a parameter for measuring the electromagnetic wave of each frequency, as shown in Table 1, the energy use efficiency of each low-frequency electromagnetic wave is measured when the electromagnetic wave of each low frequency is generated by the planar antenna of the embodiment, and As shown in FIG. 2, when the electromagnetic wave of each high frequency is generated by the planar antenna of the embodiment, the energy use efficiency corresponding to each high frequency electromagnetic wave is measured; in Table 1, the energy use efficiency of each low frequency electromagnetic wave generated by the planar antenna exceeds The preset threshold value is 30%, and the energy efficiency of each high-frequency electromagnetic wave generated by the planar antenna in Table 2 exceeds the preset threshold value, so that the electromagnetic wave generated by the planar antenna can cover LTE (Long Term Evolution, long-term Evolution) The electromagnetic waves required for the entire frequency band of the network.
  • Table 1 the energy use efficiency of each low-frequency electromagnetic wave is measured when the electromagnetic wave of each low frequency is generated by the planar antenna of the embodiment, and As shown in FIG. 2, when the electromagnetic wave of each high frequency is generated by the planar antenna of the embodiment,
  • the planar antenna includes a first radiator and a second radiator, and both the first radiator and the second radiator are metal sheets, and the first radiator and the second radiation can be printed on the wireless terminal.
  • the feeding point of the first radiator is directly connected to the signal end of the PCB board, so that the first radiator can generate high frequency electromagnetic waves, and the ground point of the second radiator directly corresponds to the PCB
  • the grounding end of the board is electrically connected, and the first radiator and the second radiator have a coupling gap, so that when the first radiator radiates electromagnetic waves, the second radiator generates low-frequency electromagnetic waves, thereby increasing the frequency of the electromagnetic waves generated by the antenna.
  • the range increases the bandwidth of the antenna.
  • an embodiment of the present invention provides a wireless terminal, including:
  • Embodiment 1 provides a planar antenna 1.
  • the wireless terminal includes a planar antenna
  • the planar antenna includes a first radiator and a second radiator
  • the first radiation body and the second radiation are located on the same plane, thereby reducing the volume of the antenna
  • the first radiator The feeding point is directly connected to the signal end of the PCB of the wireless terminal, so that the first radiator can generate high frequency electromagnetic waves, and the grounding point of the second radiator is directly connected to the ground end of the PCB board, and the first radiation
  • the coupling body has a coupling gap between the body and the second radiator, so that when the first radiator radiates electromagnetic waves, the second radiator generates and radiates low-frequency electromagnetic waves, thereby increasing the range of frequencies at which the antenna generates electromagnetic waves and increasing the bandwidth of the antenna.

Abstract

The present invention provides a planar antenna of a wireless terminal and a wireless terminal, and relates to the field of communications. Said planar antenna of the wireless terminal comprises a first radiator (1) and a second radiator (2). Said first radiator comprises a feed point (11) and said second radiator comprises a ground point (21); said first radiator (1) and second radiator (2) are located in the same plane and a coupling slot (4) is formed between said first radiator (1) and second radiator (2), the feed point (11) of said first radiator (1) is electrically connected to the signal end of the printed circuit board (PCB) (3) of said terminal, and the ground point (21) of said second radiator (2) is electrically connected to the ground end of said PCB (3). Said wireless terminal comprises said planar antenna. The present invention can reduce the antenna volume and improve the antenna bandwidth.

Description

一种无线终端的平面天线及无线终端 技术领域  Planar antenna and wireless terminal of wireless terminal
本发明涉及通信领域， 特别涉及一种无线终端的平面天线及无线终端。 背景技术 说  The present invention relates to the field of communications, and in particular, to a planar antenna and a wireless terminal of a wireless terminal. Background art
随着移动通讯技术的迅猛发展， 无线终端产品的功能越来越多样而且复杂， 对无线终 端天线的带宽和体积要求也越来越苛刻和严格。  With the rapid development of mobile communication technologies, the functions of wireless terminal products are more and more diverse and complex, and the bandwidth and volume requirements of wireless terminal antennas are becoming more and more demanding and strict.
目前现有技术提供如下两种天线， 包括：  At present, the prior art provides the following two types of antennas, including:
第一种天线为 PIFA (Planar Inverted F Antenna, 平书面倒 F型天线） ， 其中， PIFA天线包 括一个支架和金属导线， 且金属导线布置在支架上。 如果想提升 PIFA天线的带宽， 则需要 加高或加长支架， 以在支架上布置更长的金属导线。  The first type of antenna is a PIFA (Planar Inverted F Antenna), wherein the PIFA antenna includes a bracket and a metal wire, and the metal wire is disposed on the bracket. If you want to increase the bandwidth of your PIFA antenna, you need to raise or lengthen the bracket to place a longer metal wire on the bracket.
第二种天线为单极子平面天线， 其中， 单极子平面天线包括一个单极子和 PCB  The second antenna is a monopole planar antenna, wherein the monopole planar antenna includes a monopole and a PCB
(PrintedCircuitBoard, 印制电路板） 板， 单极子为长方形的金属片， 且单极子印制在 PCB 板上以减少单极子天线的体积。  (PrintedCircuitBoard, printed circuit board) board, monopole is a rectangular piece of metal, and monopole printed on the PCB to reduce the size of the monopole antenna.
在实现本发明的过程中， 发明人发现现有技术至少存在以下问题：  In the process of implementing the present invention, the inventors have found that the prior art has at least the following problems:
在上述第一种天线中， 由于在支架上的布置天线， 所以如果 PIFA天线的带宽较大， 则 PIFA天线将占用较大的体积；  In the first type of antenna described above, since the antenna is disposed on the bracket, if the bandwidth of the PIFA antenna is large, the PIFA antenna will occupy a large volume;
在上述第二种天线中， 现有的单极子平面天线的带宽较低。 发明内容  In the second antenna described above, the existing monopole planar antenna has a lower bandwidth. Summary of the invention
为了减少天线的体积以及提高天线的带宽， 本发明提供了一种无线终端的平面天线及 无线终端。 所述技术方案如下：  In order to reduce the size of the antenna and increase the bandwidth of the antenna, the present invention provides a planar antenna and a wireless terminal of a wireless terminal. The technical solution is as follows:
一种无线终端的平面天线， 所述平面天线包括：  A planar antenna of a wireless terminal, the planar antenna comprising:
第一辐射体、 第二辐射体， 所述第一辐射体包括馈电点， 所述第二辐射体包括接地点； 所述第一辐射体和第二辐射体位于同一平面且所述第一辐射体与第二辐射体之间具有 耦合缝隙， 所述第一辐射体的馈电点与所述终端的印制电路板的信号端电连接， 所述第二 辐射体的接地点与所述印制电路板的接地端电连接。  a first radiator, a second radiator, the first radiator includes a feeding point, the second radiator includes a grounding point; the first radiator and the second radiator are located in a same plane and the first a coupling gap is formed between the radiator and the second radiator, and a feeding point of the first radiator is electrically connected to a signal end of the printed circuit board of the terminal, a grounding point of the second radiator and the The ground terminal of the printed circuit board is electrically connected.
一种无线终端， 所述无线终端包括： 所述平面天线。 在本发明中， 平面天线包括第一辐射体和第二辐射体， 第一辐射体和第二辐射位于同 一平面上， 从而减少天线的体积； 第一辐射体的馈电点直接与终端的 PCB板的信号端电连 接， 使得第一辐射体可以产生高频的电磁波， 第二辐射体的接地点直接与 PCB板的接地端 电连接， 且第一辐射体和第二辐射体之间具有耦合缝隙， 使得当第一辐射体辐射电磁波时， 第二福射体产生并辐射低频电磁波， 从而提高了天线产生电磁波的频率的范围， 提高了天 线的带宽。 附图说明 A wireless terminal, the wireless terminal comprising: the planar antenna. In the present invention, the planar antenna includes a first radiator and a second radiator, the first radiator and the second radiation are located on the same plane, thereby reducing the volume of the antenna; the feeding point of the first radiator is directly connected to the PCB of the terminal The signal terminals of the board are electrically connected, so that the first radiator can generate high frequency electromagnetic waves, the grounding point of the second radiator is directly connected to the ground end of the PCB board, and the first radiator and the second radiator have coupling therebetween. The gap is such that when the first radiator radiates electromagnetic waves, the second radiation body generates and radiates low-frequency electromagnetic waves, thereby increasing the range of frequencies at which the antenna generates electromagnetic waves and increasing the bandwidth of the antenna. DRAWINGS
图 1是本发明实施例 1提供的第一种平面天线示意图；  1 is a schematic diagram of a first planar antenna according to Embodiment 1 of the present invention;
图 2是本发明实施例 1提供的第二种平面天线示意图；  2 is a schematic diagram of a second planar antenna according to Embodiment 1 of the present invention;
图 3是本发明实施例 1提供的第三种平面天线示意图；  3 is a schematic diagram of a third planar antenna according to Embodiment 1 of the present invention;
图 4是本发明实施例 1提供的第四种平面天线示意图；  4 is a schematic diagram of a fourth planar antenna according to Embodiment 1 of the present invention;
图 5是本发明实施例 2提供的一种无线终端示意图。 具体实施方式  FIG. 5 is a schematic diagram of a wireless terminal according to Embodiment 2 of the present invention. detailed description
为使本发明的目的、 技术方案和优点更加清楚， 下面将结合附图对本发明实施方式作 进一步地详细描述。 实施例 1  The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Example 1
如图 1-4所示， 本发明实施例提供了一种无线终端的平面天线， 包括：  As shown in Figure 1-4, an embodiment of the present invention provides a planar antenna of a wireless terminal, including:
第一辐射体 1和第二辐射体 2， 第一辐射体 1包括馈电点 11， 第二辐射体 2包括接地 点 21 ;  a first radiator 1 and a second radiator 2, the first radiator 1 includes a feeding point 11, and the second radiator 2 includes a grounding point 21;
第一辐射体 1和第二辐射体 2位于同一平面且第一辐射体 1与第二辐射体 2之间具有 耦合缝隙 4， 第一辐射体 1的馈电点 11与终端的 PCB板 3的信号端电连接， 第二辐射体 2 的接地点 21与 PCB板 3的接地端电连接。  The first radiator 1 and the second radiator 2 are located on the same plane and have a coupling gap 4 between the first radiator 1 and the second radiator 2, the feeding point 11 of the first radiator 1 and the PCB board 3 of the terminal The signal terminals are electrically connected, and the grounding point 21 of the second radiator 2 is electrically connected to the grounding end of the PCB board 3.
其中， 第一辐射体 1和第二辐射体 2可以都印制在 PCB板 3上， 第一辐射体 1和第二 辐射体 2都为金属片。  The first radiator 1 and the second radiator 2 may both be printed on the PCB 3. The first radiator 1 and the second radiator 2 are both metal sheets.
其中， PCB板 3将交变的射频电流信号从信号端输出给第一辐射体 1，射频电流信号在 第一辐射体 1内流动， 且当射频电流信号流向第一辐射体 1的边缘时， 第一辐射体 1将射 频电流信号转换为电磁波并向外辐射出去。 由于第一辐射体 1直接与 PCB板 3的信号端电 连接， 因此第一辐射体 1辐射的电磁波为高频的电磁波。 其中， 第一辐射体 1和第二辐射体 2之间具有耦合缝隙， 且第二辐射体 2的接地点 21 与 PCB板 3的接地端电连接， 所以当第一辐射体 1辐射电磁波时， 第一辐射体 1与第二辐 射体 2之间会产生耦合作用使得第二辐射体 2产生交变的电流信号， 产生的电流信号在第 二辐射体 2内流动， 当产生的电流信号流向第二辐射体 2的边缘时， 第二辐射体 2再将产 生的电流信号转换为电磁波并向外辐射出去。 由于第二福射体 2通过耦合作用产生电流信 号， 再将产生的电流信号转换为电磁波辐射出去， 因此第二辐射体 2辐射的电磁波为低频 的电磁波。 Wherein, the PCB board 3 outputs the alternating RF current signal from the signal end to the first radiator 1, the RF current signal flows in the first radiator 1, and when the RF current signal flows to the edge of the first radiator 1, The first radiator 1 converts the radio frequency current signal into an electromagnetic wave and radiates it outward. Since the first radiator 1 is directly electrically connected to the signal end of the PCB board 3, the electromagnetic wave radiated by the first radiator 1 is a high-frequency electromagnetic wave. Wherein, the first radiator 1 and the second radiator 2 have a coupling gap therebetween, and the grounding point 21 of the second radiator 2 is electrically connected to the ground end of the PCB board 3, so when the first radiator 1 radiates electromagnetic waves, Coupling between the first radiator 1 and the second radiator 2 causes the second radiator 2 to generate an alternating current signal, and the generated current signal flows in the second radiator 2, and the generated current signal flows to the first At the edge of the second radiator 2, the second radiator 2 converts the generated current signal into an electromagnetic wave and radiates it outward. Since the second radiation body 2 generates a current signal by coupling, and then converts the generated current signal into electromagnetic wave radiation, the electromagnetic wave radiated by the second radiator 2 is a low-frequency electromagnetic wave.
其中， 在本实施例中， 第一辐射体 1产生高频的电磁波， 第二辐射体 2产生低频的电 磁波， 所以本实施例提供的平面天线的带宽较宽。  In this embodiment, the first radiator 1 generates a high-frequency electromagnetic wave, and the second radiator 2 generates a low-frequency electromagnetic wave. Therefore, the planar antenna provided in this embodiment has a wide bandwidth.
在本发明的一个实施例提供的平面天线中， 第一辐射体 1和第二辐射体 2都为金属片， 因此， 可以直接将第一辐射体 1和第二辐射体 2印制在 PCB板 3上， 如此可以减少该平面 天线占用的体积。  In the planar antenna provided by an embodiment of the present invention, the first radiator 1 and the second radiator 2 are both metal sheets, and therefore, the first radiator 1 and the second radiator 2 can be directly printed on the PCB board. 3, this can reduce the volume occupied by the planar antenna.
其中， 第一辐射体 1可以为长方形结构， 馈电点可以位于第一辐射体 1的一条长边上 的中间位置， 从而使得 PCB板 3输出的电流信号可以在第一辐射体 1上均匀地分布。  The first radiator 1 may have a rectangular structure, and the feeding point may be located at an intermediate position on one long side of the first radiator 1, so that the current signal outputted by the PCB 3 can be uniformly distributed on the first radiator 1. distributed.
进一歩地， 如图 1所示， 第二辐射体 2也为长方形结构， 接点 21位于第二辐射体 2的 一条短边上， 第二辐射体 2与第一辐射体 1之间具有耦合缝隙 4。  Further, as shown in FIG. 1, the second radiator 2 is also a rectangular structure, the contact 21 is located on one short side of the second radiator 2, and the second radiator 2 has a coupling gap between the first radiator 1 and the first radiator 1. 4.
其中， 第二辐射体 2的一条长边与第一辐射体 1的一条短边之间具有耦合缝隙 4。 其中， 当第一辐射体 1 向外辐射电磁波时， 第二辐射体 2产生交变的电流信号， 当产 生的电流信号流向第二辐射体 2的边缘时， 第二辐射体产生低频的电磁波并向外辐射出去。  There is a coupling gap 4 between one long side of the second radiator 2 and one short side of the first radiator 1. Wherein, when the first radiator 1 radiates electromagnetic waves outward, the second radiator 2 generates an alternating current signal, and when the generated current signal flows to the edge of the second radiator 2, the second radiator generates low-frequency electromagnetic waves and Radiate outward.
进一步地， 如图 2所示， 第二辐射体 2包括第一部分 22和第二部分 23， 第一部分 22 和第二部分 23都为长方形结构， 接地点 21位于第一部分 22的第一端 221的短边上， 第一 部分 22的一条长边与第一辐射体 1的一条短边之间具有耦合缝隙 41， 第一部分 22的第二 端 222与第二部分 23的第一端 231相连， 第一部分 22与第二部分 23相互垂直， 且第二部 分 23与第一辐射体 1的不与馈点 11相连的长边之间存在稱合缝隙 42。  Further, as shown in FIG. 2, the second radiator 2 includes a first portion 22 and a second portion 23, both of which have a rectangular structure, and the grounding point 21 is located at the first end 221 of the first portion 22. On the short side, a long side of the first portion 22 and a short side of the first radiator 1 have a coupling slit 41, and the second end 222 of the first portion 22 is connected to the first end 231 of the second portion 23, the first portion The second portion 23 is perpendicular to the second portion 23, and the second portion 23 has a weigh gap 42 between the long sides of the first radiator 1 which are not connected to the feed point 11.
其中， 当第一辐射体 1 向外辐射电磁波时， 第二辐射体 2产生交变的电流信号， 当产 生的电流信号流向第二辐射体 2的边缘时， 第二辐射体 2产生电磁波并向外辐射出去。 另 夕卜， 第二辐射体 2在第一部分 22和第二部分 23相连处存在转折部分， 当第二辐射体 2内 的电流信号流到转折部分时， 电流信号产生 90度转向， 使得转折部分产生频率较大的电磁 波并向外辐射出去。  Wherein, when the first radiator 1 radiates electromagnetic waves outward, the second radiator 2 generates an alternating current signal, and when the generated current signal flows to the edge of the second radiator 2, the second radiator 2 generates electromagnetic waves and Radiation outside. In addition, the second radiator 2 has a turning portion at the junction of the first portion 22 and the second portion 23. When the current signal in the second radiator 2 flows to the turning portion, the current signal generates a 90 degree turn, so that the turning portion A relatively high frequency electromagnetic wave is generated and radiated outward.
进一步地， 如图 3和 4所示， 第二辐射体 2还包括第三部分 24和第四部分 25;  Further, as shown in Figures 3 and 4, the second radiator 2 further includes a third portion 24 and a fourth portion 25;
第三部分 24为三角形结构， 第四部分 25为长方形结构， 第二部分 23的第二端 232和 第四部分 25的第一端 251都与第三部分 24的同一条边相连， 第二部分 23和第四部分 25 相互平行且第二部分 23和第四部分 25之间具有缝隙 43。 The third portion 24 is a triangular structure, the fourth portion 25 is a rectangular structure, and the second end 232 of the second portion 23 is The first end 251 of the fourth portion 25 is connected to the same side of the third portion 24, the second portion 23 and the fourth portion 25 are parallel to each other and have a gap 43 between the second portion 23 and the fourth portion 25.
其中， 如图 3和 4所示， 第三部分 24可以为直角三角形， 且第二部分 23的第二端 232 和第四部分 25的第一端 251都与第三部分 24的同一条直角边相连。 进一步地， 第二部分 23的第二端 232和第四部分 25的第一端 251可都与该条直角边垂直。  Wherein, as shown in FIGS. 3 and 4, the third portion 24 may be a right triangle, and the second end 232 of the second portion 23 and the first end 251 of the fourth portion 25 are both at the same right angle as the third portion 24. Connected. Further, the second end 232 of the second portion 23 and the first end 251 of the fourth portion 25 may both be perpendicular to the right angle side.
其中， 如图 3所示， 第三部分 24的一个顶角靠近第二部分 23的第二端 232， 使得第三 部分 24的斜边向下倾斜； 或者， 如图 4所示， 第三部分 24的一个顶角靠近第四部分 25的 第一端 251， 使得第三部分 24的斜边向上倾斜。  Wherein, as shown in FIG. 3, a top corner of the third portion 24 is adjacent to the second end 232 of the second portion 23 such that the oblique side of the third portion 24 is inclined downward; or, as shown in FIG. 4, the third portion A top corner of 24 is adjacent the first end 251 of the fourth portion 25 such that the hypotenuse of the third portion 24 slopes upward.
其中， 当第一辐射体 1 向外辐射电磁波时， 第二辐射体 2产生交变的电流信号， 当产 生的电流信号流向第二辐射体 2的边缘时， 第二福射体 2产生低频的电磁波并向外福射出 去。  Wherein, when the first radiator 1 radiates electromagnetic waves outward, the second radiator 2 generates an alternating current signal, and when the generated current signal flows to the edge of the second radiator 2, the second emitter 2 generates a low frequency. The electromagnetic waves are shot out.
其中， 第二辐射体 2在第一部分 22和第二部分 23相连处存在转折部分， 当第二辐射 体 2内的电流信号流到转折部分时， 电流信号产生 90度转向， 使得转折部分产生频率较大 的电磁波并向外辐射出去； 另外， 当电流信号流到第三部分 24时， 电流信号在第三部分 24 产生 180度转向， 从而使得第三部分 24产生频率较大的电磁波并向外辐射， 以及使得第二 部分 23内的电流流向和第四部分 25内的电流流向相反， 促使第二部分 23和第四部分 25 产生能量辐射， 提高平面天线的带宽。  Wherein, the second radiator 2 has a turning portion at the junction of the first portion 22 and the second portion 23. When the current signal in the second radiator 2 flows to the turning portion, the current signal generates a 90 degree turn, so that the turning portion generates the frequency. The larger electromagnetic wave radiates outward; in addition, when the current signal flows to the third portion 24, the current signal produces a 180 degree turn in the third portion 24, thereby causing the third portion 24 to generate a relatively high frequency electromagnetic wave and outward Radiation, and causing current flow in the second portion 23 to flow in opposite directions to the current in the fourth portion 25, causes the second portion 23 and the fourth portion 25 to generate energy radiation, increasing the bandwidth of the planar antenna.
其中， 第二部分 23和第四部分 25之间有缝隙可以增加第二辐射体 2的长度， 从而使 得第二辐射体 2能够产生频率范围较宽的电磁波， 从而进一步地提高平面天线的带宽。  Wherein, a gap between the second portion 23 and the fourth portion 25 increases the length of the second radiator 2, so that the second radiator 2 can generate electromagnetic waves having a wide frequency range, thereby further increasing the bandwidth of the planar antenna.
其中， 能量利用效率是衡量每种频率的电磁波的参数， 如表 1 所示， 利用本实施例的 平面天线产生每种低频的电磁波时测量得到每种低频电磁波对应的能量使用效率， 以及如 表 2所示， 利用本实施例的平面天线产生每种高频的电磁波时测量得到每种高频电磁波对 应的能量使用效率； 在表 1 中， 平面天线产生每种低频电磁波的能量使用效率都超过预设 的门限值 30%， 以及在表 2中平面天线产生每种高频电磁波的能量使用效率都超过预设的 门限值， 使得平面天线产生的电磁波能够覆盖 LTE ( Long Term Evolution, 长期演进） 网络 所需整个频段的电磁波。 表 1 Wherein, the energy utilization efficiency is a parameter for measuring the electromagnetic wave of each frequency, as shown in Table 1, the energy use efficiency of each low-frequency electromagnetic wave is measured when the electromagnetic wave of each low frequency is generated by the planar antenna of the embodiment, and As shown in FIG. 2, when the electromagnetic wave of each high frequency is generated by the planar antenna of the embodiment, the energy use efficiency corresponding to each high frequency electromagnetic wave is measured; in Table 1, the energy use efficiency of each low frequency electromagnetic wave generated by the planar antenna exceeds The preset threshold value is 30%, and the energy efficiency of each high-frequency electromagnetic wave generated by the planar antenna in Table 2 exceeds the preset threshold value, so that the electromagnetic wave generated by the planar antenna can cover LTE (Long Term Evolution, long-term Evolution) The electromagnetic waves required for the entire frequency band of the network. Table 1
电磁波的频率 能量使用效率Frequency of electromagnetic waves energy use efficiency
698兆 HZ 34%698 megabytes HZ 34%
724兆 HZ 49%724 trillion HZ 49%
749兆 HZ 64%749 trillion HZ 64%
774兆 HZ 73%774 trillion HZ 73%
799兆 HZ 58%799 trillion HZ 58%
824兆 HZ 68%824 trillion HZ 68%
849兆 HZ 57%849 trillion HZ 57%
869兆 HZ 52%869 trillion HZ 52%
880兆 HZ 52%880 trillion HZ 52%
894兆 HZ 53%894 trillion HZ 53%
915兆 HZ 47%915 trillion HZ 47%
935兆 HZ 47%935 trillion HZ 47%
960兆 HZ 46% 960 trillion HZ 46%
表 2 Table 2
Figure imgf000008_0001
在本发明实施例中， 平面天线包括第一辐射体和第二辐射体， 第一辐射体和第二辐射 体都为金属片， 可以将第一辐射体和第二辐射印制在无线终端的 PCB板上， 从而减少天线 的体积； 第一辐射体的馈电点直接与 PCB板的信号端电连接， 使得第一辐射体可以产生高 频的电磁波， 第二辐射体的接地点直接与 PCB板的接地端电连接， 且第一辐射体和第二辐 射体之间具有耦合缝隙， 使得当第一辐射体辐射电磁波时， 第二辐射体产生低频电磁波， 从而提高了天线产生电磁波的频率的范围， 提高了天线的带宽。 实施例 2
Figure imgf000008_0001
In the embodiment of the present invention, the planar antenna includes a first radiator and a second radiator, and both the first radiator and the second radiator are metal sheets, and the first radiator and the second radiation can be printed on the wireless terminal. On the PCB board, thereby reducing the volume of the antenna; the feeding point of the first radiator is directly connected to the signal end of the PCB board, so that the first radiator can generate high frequency electromagnetic waves, and the ground point of the second radiator directly corresponds to the PCB The grounding end of the board is electrically connected, and the first radiator and the second radiator have a coupling gap, so that when the first radiator radiates electromagnetic waves, the second radiator generates low-frequency electromagnetic waves, thereby increasing the frequency of the electromagnetic waves generated by the antenna. The range increases the bandwidth of the antenna. Example 2
如图 5所示， 本发明实施例提供了一种无线终端， 包括：  As shown in FIG. 5, an embodiment of the present invention provides a wireless terminal, including:
实施例 1提供的平面天线 1。  Embodiment 1 provides a planar antenna 1.
在本发明实施例中， 无线终端包括平面天线， 平面天线包括第一辐射体和第二辐射体， 第一福射体和第二辐射位于同一平面上， 从而减少天线的体积； 第一辐射体的馈电点直接 与无线终端的 PCB板的信号端电连接， 使得第一辐射体可以产生高频的电磁波， 第二辐射 体的接地点直接与 PCB板的接地端电连接，且第一辐射体和第二辐射体之间具有耦合缝隙， 使得当第一辐射体辐射电磁波时， 第二辐射体产生并辐射低频电磁波， 从而提高了天线产 生电磁波的频率的范围， 提高了天线的带宽。  In an embodiment of the present invention, the wireless terminal includes a planar antenna, the planar antenna includes a first radiator and a second radiator, and the first radiation body and the second radiation are located on the same plane, thereby reducing the volume of the antenna; the first radiator The feeding point is directly connected to the signal end of the PCB of the wireless terminal, so that the first radiator can generate high frequency electromagnetic waves, and the grounding point of the second radiator is directly connected to the ground end of the PCB board, and the first radiation The coupling body has a coupling gap between the body and the second radiator, so that when the first radiator radiates electromagnetic waves, the second radiator generates and radiates low-frequency electromagnetic waves, thereby increasing the range of frequencies at which the antenna generates electromagnetic waves and increasing the bandwidth of the antenna.
以上所述仅为本发明的较佳实施例， 并不用以限制本发明， 凡在本发明的精神和原则 之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。 The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., which are within the spirit and scope of the present invention, should be included in the protection of the present invention. Within the scope.

Claims

权 利 要 求 书 Claim
1、 一种无线终端的平面天线， 其特征在于， 所述平面天线包括：  A planar antenna for a wireless terminal, wherein the planar antenna comprises:
第一辐射体、 第二辐射体， 所述第一辐射体包括馈电点， 所述第二辐射体包括接地点； 所述第一辐射体和第二辐射体位于同一平面且所述第一辐射体与第二辐射体之间具有耦 合缝隙， 所述第一辐射体的馈电点与所述终端的印制电路板的信号端电连接， 所述第二辐射 体的接地点与所述印制电路板的接地端电连接。  a first radiator, a second radiator, the first radiator includes a feeding point, the second radiator includes a grounding point; the first radiator and the second radiator are located in a same plane and the first a coupling gap is formed between the radiator and the second radiator, and a feeding point of the first radiator is electrically connected to a signal end of the printed circuit board of the terminal, a grounding point of the second radiator and the The ground terminal of the printed circuit board is electrically connected.
2、 如权利要求 1所述的平面天线， 其特征在于， 所述第一辐射体为长方形结构。 The planar antenna according to claim 1, wherein the first radiator has a rectangular structure.
3、如权利要求 2所述的平面天线， 其特征在于， 所述第二辐射体为长方形， 所述接地点 位于所述第二辐射体的一条短边上， 所述第二辐射体与所述第一辐射体之间具有耦合缝隙。 The planar antenna according to claim 2, wherein the second radiator is rectangular, the grounding point is located on a short side of the second radiator, and the second radiator and the ground There is a coupling gap between the first radiators.
4、如权利要求 3所述的平面天线， 其特征在于， 所述第二辐射体的一条长边与所述第一 辐射体的一条短边之间具有耦合缝隙。 The planar antenna according to claim 3, wherein a long side of the second radiator has a coupling gap with a short side of the first radiator.
5、如权利要求 2所述的平面天线， 其特征在于， 所述第二辐射体包括第一部分和第二部 分， 所述第一部分和第二部分都为长方形； The planar antenna according to claim 2, wherein the second radiator comprises a first portion and a second portion, and the first portion and the second portion are both rectangular;
所述接地点位于所述第一部分第一端的短边上， 所述第一部分的一条长边与所述第一辐 射体的一条短边之间具有耦合缝隙， 所述第一部分的第二端与所述第二部分的第一端相连， 所述第一部分与第二部分相互垂直， 所述第二部分与第一辐射体的不与所述馈电点相连的长 边之间具有耦合缝隙。  The grounding point is located on a short side of the first end of the first portion, a long side of the first portion has a coupling gap with a short side of the first radiator, and a second end of the first portion Connected to the first end of the second portion, the first portion and the second portion are perpendicular to each other, and the second portion has a coupling gap with a long side of the first radiator that is not connected to the feed point .
6、如权利要求 5所述的平面天线， 其特征在于， 所述第二辐射体还包括第三部分和第四 部分， 所述第三部分为三角形， 所述第四部分为长方形； The planar antenna according to claim 5, wherein the second radiator further comprises a third portion and a fourth portion, the third portion is a triangle, and the fourth portion is a rectangle;
所述第二部分的第二端和第四部分的第一端都与所述第三部分的同一条边相连， 所述第 二部分和第四部相互平行且所述第二部分和第四部分之间具有缝隙。  The second end of the second portion and the first end of the fourth portion are both connected to the same side of the third portion, the second portion and the fourth portion are parallel to each other and the second portion and the fourth portion There is a gap between the parts.
7、如权利要求 6所述的平面天线， 其特征在于， 所述第三部分为直角三角形； 且所述第 二部分的第二端和第四部分的第一端都与所述第三部分的同一条直角边相连。 The planar antenna according to claim 6, wherein the third portion is a right triangle; and the second end of the second portion and the first end of the fourth portion are both the third portion The same right angle side is connected.
8、如权利 7所述的平面天线， 其特征在于， 所述第三部分的一个顶角靠近所述第二部分 的第二端或所述第三部分的一个顶角靠近所述第四部分的第一端。 The planar antenna according to claim 7, wherein a apex angle of the third portion is adjacent to a second end of the second portion or a apex angle of the third portion is adjacent to the fourth portion The first end.
9、 如权利要求 1-8任一项所述的平面天线， 其特征在于， 所述第一辐射体和第二辐射体 均为金属。 The planar antenna according to any one of claims 1 to 8, wherein the first radiator and the second radiator are both metal.
10、 如权利要求 9所述的平面天线， 其特征在于， 所述第一辐射体和第二辐射体都印制 在所述印制电路板上。 10. The planar antenna of claim 9, wherein the first radiator and the second radiator are both printed on the printed circuit board.
11、 如权利要求 1-8任一项权利要求所述的平面天线， 其特征在于， 所述馈电点位于所 述第一辐射体的一条长边的中间位置。 The planar antenna according to any one of claims 1 to 8, wherein the feeding point is located at an intermediate position of one long side of the first radiator.
12、 一种无线终端， 其特征在于， 所述无线终端包括： 12. A wireless terminal, the wireless terminal comprising:
如权利要求 1-11任一项权利要求所述的平面天线。  A planar antenna according to any of claims 1-11.
PCT/CN2011/073351 2011-04-27 2011-04-27 Planar antenna of wireless terminal and wireless terminal WO2011113389A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2011/073351 WO2011113389A2 (en) 2011-04-27 2011-04-27 Planar antenna of wireless terminal and wireless terminal
CN201180000347.0A CN102171888B (en) 2011-04-27 2011-04-27 Planar antenna of wireless terminal and wireless terminal thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/073351 WO2011113389A2 (en) 2011-04-27 2011-04-27 Planar antenna of wireless terminal and wireless terminal

Publications (2)

Publication Number Publication Date
WO2011113389A2 true WO2011113389A2 (en) 2011-09-22
WO2011113389A3 WO2011113389A3 (en) 2012-04-05

Family

ID=44491706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073351 WO2011113389A2 (en) 2011-04-27 2011-04-27 Planar antenna of wireless terminal and wireless terminal

Country Status (2)

Country Link
CN (1) CN102171888B (en)
WO (1) WO2011113389A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015074248A1 (en) * 2013-11-22 2015-05-28 华为终端有限公司 Antenna
CN107112633B (en) * 2015-12-22 2021-01-05 华为技术有限公司 Mobile terminal
CN110350295A (en) * 2019-06-30 2019-10-18 RealMe重庆移动通信有限公司 Wearable electronic equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1423365A (en) * 2001-12-07 2003-06-11 深圳市中兴通讯股份有限公司 Mobile communication terminal built-in antenna
CN101442151A (en) * 2007-11-22 2009-05-27 连展科技电子（昆山）有限公司 Multi-frequency antenna
CN101719590A (en) * 2010-01-04 2010-06-02 深圳市信维通信股份有限公司 Monopole antenna and mobile communication device with same
CN201682057U (en) * 2010-03-31 2010-12-22 速码波科技股份有限公司 Multifrequency antenna

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6661380B1 (en) * 2002-04-05 2003-12-09 Centurion Wireless Technologies, Inc. Multi-band planar antenna
FI120606B (en) * 2003-10-20 2009-12-15 Pulse Finland Oy Internal multi-band antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1423365A (en) * 2001-12-07 2003-06-11 深圳市中兴通讯股份有限公司 Mobile communication terminal built-in antenna
CN101442151A (en) * 2007-11-22 2009-05-27 连展科技电子（昆山）有限公司 Multi-frequency antenna
CN101719590A (en) * 2010-01-04 2010-06-02 深圳市信维通信股份有限公司 Monopole antenna and mobile communication device with same
CN201682057U (en) * 2010-03-31 2010-12-22 速码波科技股份有限公司 Multifrequency antenna

Also Published As

Publication number Publication date
CN102171888A (en) 2011-08-31
CN102171888B (en) 2013-06-12
WO2011113389A3 (en) 2012-04-05

Similar Documents

Publication Publication Date Title
TWI624999B (en) Atnenna structure and wireless communiation device employing same
TWI622230B (en) Antenna structure and wireless communication device using the same
US20150061952A1 (en) Broadband Antenna
US9466874B2 (en) Antenna and electronic device using same
TWI476989B (en) Multi-band antenna
EP2940794A1 (en) Dipole antenna and wireless terminal device
TWI487191B (en) Antenna system
JP2015106919A (en) Multifrequency antenna module
CN105449379A (en) Filtering antenna capable of restraining high frequency harmonic waves
TW201210136A (en) Three-dimensional slot multi-band antenna
TWI656687B (en) Antenna structure and wireless communication device having the same
WO2015014200A1 (en) Printed antenna and terminal device
WO2011113389A2 (en) Planar antenna of wireless terminal and wireless terminal
WO2015165007A1 (en) Antenna apparatus and terminal
TWI566473B (en) Broadband antenna and portable electronic deive having same
TWI581502B (en) Antennastructure and wireless communication device having same
CN205211954U (en) Filtering antenna that can restrain high frequency harmonic
TW201126812A (en) Dipole antenna
TWI581499B (en) Antenna assembly
CN104425886A (en) Antenna apparatus and wireless transceiver
WO2016202118A1 (en) Built-in wifi antenna and mobile terminal
CN103779650B (en) Wide frequency antenna and portable electronic device with the wide frequency antenna
TWI596831B (en) Wireless communication device
KR20150021679A (en) antenna module and portable terminal device using it
TW201517380A (en) Wireless communication device

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180000347.0

Country of ref document: CN

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

Ref document number: 11755706

Country of ref document: EP

Kind code of ref document: A2

NENP Non-entry into the national phase in:

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11755706

Country of ref document: EP

Kind code of ref document: A2