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WO2011113389A2 - Antenne plane d'un terminal sans fil et terminal sans fil - Google Patents

Antenne plane d'un terminal sans fil et terminal sans fil Download PDF

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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
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2011/073351
Other languages
English (en)
Chinese (zh)
Other versions
WO2011113389A3 (fr
Inventor
李正浩
范毅
兰尧
孙树辉
帅培华
雷平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Device Co Ltd
Original Assignee
Huawei Device Co Ltd
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 Huawei Device Co Ltd filed Critical Huawei Device Co Ltd
Priority to PCT/CN2011/073351 priority Critical patent/WO2011113389A2/fr
Priority to CN201180000347.0A priority patent/CN102171888B/zh
Publication of WO2011113389A2 publication Critical patent/WO2011113389A2/fr
Publication of WO2011113389A3 publication Critical patent/WO2011113389A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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.

Landscapes

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

Abstract

La présente invention se rapporte à une antenne plane d'un terminal sans fil et à un terminal sans fil, et se rapporte au domaine des communications. Ladite antenne plane du terminal sans fil comprend un premier radiateur (1) et un second radiateur (2). Ledit premier radiateur comprend un point d'alimentation (11) et ledit second radiateur comprend un point de masse (21) ; ledit premier radiateur (1) et ledit second radiateur (2) sont situés dans le même plan et une encoche de couplage (4) est formée entre ledit premier radiateur (1) et ledit second radiateur (2), le point d'alimentation (11) dudit premier radiateur (1) est électriquement raccordé à l'extrémité de signal de la carte de circuit imprimé (PCB) (3) dudit terminal, et le point de masse (21) dudit second radiateur (2) est électriquement raccordé à l'extrémité de masse de ladite carte PCB (3). Ledit terminal sans fil comprend ladite antenne plane. La présente invention permet de réduire le volume de l'antenne et d'améliorer la largeur de bande de l'antenne.
PCT/CN2011/073351 2011-04-27 2011-04-27 Antenne plane d'un terminal sans fil et terminal sans fil Ceased WO2011113389A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2011/073351 WO2011113389A2 (fr) 2011-04-27 2011-04-27 Antenne plane d'un terminal sans fil et terminal sans fil
CN201180000347.0A CN102171888B (zh) 2011-04-27 2011-04-27 一种无线终端的平面天线及无线终端

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/073351 WO2011113389A2 (fr) 2011-04-27 2011-04-27 Antenne plane d'un terminal sans fil et terminal sans fil

Publications (2)

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

Family

ID=44491706

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/073351 Ceased WO2011113389A2 (fr) 2011-04-27 2011-04-27 Antenne plane d'un terminal sans fil et terminal sans fil

Country Status (2)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2894717B1 (fr) * 2013-11-22 2018-01-10 Huawei Device Co., Ltd. Antenne
WO2017107057A1 (fr) * 2015-12-22 2017-06-29 华为技术有限公司 Terminal mobile
CN110350295A (zh) * 2019-06-30 2019-10-18 RealMe重庆移动通信有限公司 穿戴式电子设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1306654C (zh) * 2001-12-07 2007-03-21 中兴通讯股份有限公司 移动通信终端内置天线
US6661380B1 (en) * 2002-04-05 2003-12-09 Centurion Wireless Technologies, Inc. Multi-band planar antenna
FI120606B (fi) * 2003-10-20 2009-12-15 Pulse Finland Oy Sisäinen monikaista-antenni
CN101442151A (zh) * 2007-11-22 2009-05-27 连展科技电子（昆山）有限公司 多频天线
CN101719590B (zh) * 2010-01-04 2012-12-12 深圳市信维通信股份有限公司 一种单极天线及具有该单极天线的移动通信装置
CN201682057U (zh) * 2010-03-31 2010-12-22 速码波科技股份有限公司 多频天线

Also Published As

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

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