WO2011113248A1 - Procédé et terminal mobile pour améliorer la performance de rayonnement des antennes - Google Patents

Procédé et terminal mobile pour améliorer la performance de rayonnement des antennes Download PDF

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Publication number
WO2011113248A1
WO2011113248A1 PCT/CN2010/075710 CN2010075710W WO2011113248A1 WO 2011113248 A1 WO2011113248 A1 WO 2011113248A1 CN 2010075710 W CN2010075710 W CN 2010075710W WO 2011113248 A1 WO2011113248 A1 WO 2011113248A1
Authority
WO
WIPO (PCT)
Prior art keywords
mobile terminal
antenna
feeding
conductive member
lead
Prior art date
Application number
PCT/CN2010/075710
Other languages
English (en)
Chinese (zh)
Inventor
刘锋昱
于小军
Original Assignee
中兴通讯股份有限公司
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 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Publication of WO2011113248A1 publication Critical patent/WO2011113248A1/fr

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; 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
    • H01Q1/243Supports; 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/36Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/30Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to radiation techniques for antennas, and more particularly to a method and a mobile terminal for improving antenna radiation performance. Background technique
  • WCDMA Wideband Code Division Multiple Access
  • GSM850 GSM850
  • GSM900 DCS 1800
  • PCS1900 PCS1900
  • W900 W1900
  • W2100 W2100
  • the main object of the present invention is to provide a method and a mobile terminal for improving the radiation performance of a mobile terminal antenna, which can greatly improve the radiation performance of the mobile terminal and improve the overall performance of the antenna of the mobile terminal.
  • a method for improving radiation performance of an antenna wherein a conductive member is disposed on a mobile terminal, and the conductive member is used as a feed line of a mobile terminal antenna, and the length of the feed line is different from a length of a feed line of an existing antenna on the mobile terminal;
  • the feeders are respectively connected to the feeding point or the feeding lead of the mobile terminal antenna, and the grounding point or the grounding lead of the mobile terminal antenna.
  • the length of the conductive member as the feed line is 30 mm or less or 90 mm or more.
  • one end of the feeding line connecting the feeding point or the feeding lead of the mobile terminal antenna is provided with a connecting body perpendicular to the plane of the feeding line, and the feeding point or the feeding of the antenna of the mobile terminal is connected through the connecting body Lead wire
  • the feed lead is perpendicular to the plane of the feed line and is connected to one end of the feed line.
  • the other end of the feeding line connecting the grounding point of the antenna of the mobile terminal or the grounding lead is provided with a connecting body perpendicular to the plane of the feeding line, and the connecting body is connected to the grounding point or the grounding point lead of the antenna of the mobile terminal;
  • ground point lead is perpendicular to the plane of the feed line and is connected to the other end of the feed line.
  • the conductive member disposed on the mobile terminal is a conductive member disposed on the outer casing of the mobile terminal.
  • the conductive member is a metal frame of the mobile terminal housing.
  • the conductive member disposed on the mobile terminal is a metal outer casing of the mobile terminal.
  • the mobile terminal body is provided with a conductive member, the conductive member is used as a feed line of the mobile terminal antenna, and the feed line length is different from the length of the feed line of the existing antenna on the mobile terminal; the feed lines are respectively connected At the feed point or feed lead of the mobile terminal antenna, and the ground point or ground lead of the mobile terminal antenna.
  • the length of the conductive member as the feed line is 30 mm or less or 90 mm or more.
  • one end of the feeding line connecting the feeding point or the feeding lead of the mobile terminal antenna is provided with a connecting body perpendicular to the plane of the feeding line, and the feeding point or the feeding of the antenna of the mobile terminal is connected through the connecting body Lead wire
  • the feed lead is perpendicular to the plane of the feed line and is connected to one end of the feed line.
  • the other end of the feeding line connecting the grounding point of the antenna of the mobile terminal or the grounding lead is provided with a connecting body perpendicular to the plane of the feeding line, and the connecting body is connected to the grounding point or the grounding point lead of the antenna of the mobile terminal;
  • ground point lead is perpendicular to the plane of the feed line and is connected to the other end of the feed line.
  • the conductive member serving as a feeder of the mobile terminal antenna is disposed on the mobile terminal casing.
  • the conductive member serving as the feeder of the mobile terminal antenna is a metal frame disposed on the outer casing of the mobile terminal.
  • the conductive member used as the feeder of the mobile terminal antenna is a metal casing of the mobile terminal.
  • a feeding line of the mobile terminal antenna is disposed on a conductive member (mainly a metal member) disposed on the body of the mobile terminal, and is respectively connected with a feeding point of the mobile terminal antenna or a feeding lead, a grounding point or a grounding lead
  • the length of the set feeder is different from the mobile terminal
  • the length of the feeder of the existing antenna is such that the resonant frequency of the feeder is different from the frequency of the received valid signal in the mobile terminal, so that the metal parts provided on the mobile terminal body will not have any influence on the mobile terminal antenna. , to ensure the radiation performance of the mobile terminal antenna.
  • FIG. 1 is a schematic structural diagram of a PIFA antenna disposed in a mobile terminal
  • FIG. 2 is a schematic view of a metal frame of a mobile terminal casing of the present invention as a mobile terminal antenna feed line. detailed description
  • the basic idea of the present invention is to provide a feed line of a mobile terminal antenna and a feed point or a feed lead, a ground point or a ground of the mobile terminal antenna on a conductive member (mainly a metal member) provided on the body of the mobile terminal.
  • the leads are respectively connected, and the length of the set feeder is different from the length of the feeder of the existing antenna on the mobile terminal such that the resonant frequency of the feeder is different from the frequency of the received valid signal in the mobile terminal.
  • the PIFA antenna includes a feed line 14 and a feed panel 13.
  • the feed panel 13 is a printed circuit board of the mobile terminal ( PCB, Printed Circuit Board), wherein the plane of the feed line 14 is parallel to the PCB as the feed panel 13 in the mobile terminal.
  • the distance between the two parallel planes is about 6.5 mm; the feed line 14 passes through the feed line 11 And the grounding wire 12 is respectively connected with the feeding power source and the grounding point (line) on the electric panel 13; wherein, the feeding wire 14 is a rectangular piece having a certain width and a set length, and the length thereof is the wavelength of the wireless signal working by the antenna.
  • the feeder 14, the feeder 11 and the grounding wire 12 are rectangular pieces having a certain width and thickness, wherein the width is related to the distance between the two parallel planes, etc., since the width and the like belong to the principle of the PIFA antenna, here No longer.
  • the feed line 11 and the ground line 12 described above are both perpendicular to the plane in which the feed line 14 is located.
  • the above-mentioned feeder line realizes the purpose of the mobile terminal supporting multi-band signal reception, and can be set to multiple according to needs. Multiple feeders can be in the same plane or can be divided into different planes, but these planes are all parallel to the feed plane.
  • FIG. 2 is a schematic diagram of a metal frame of a mobile terminal casing as a mobile terminal antenna feed line, as shown in FIG. 2, in this example, a casing (such as a front casing) 24 of the mobile terminal is provided with a decorative metal frame 21 And the metal frame 21 is further provided with a connecting member (corresponding to the feeding wire and the grounding wire in FIG. 1) 22, 27, 28 perpendicular to the plane of the casing, and the connecting members are disposed on the inner side of the casing. It is connected to a feed point 23 of the mobile terminal antenna (connected to a feed source on the mobile terminal PCB board) or a ground point 26. Feed point 23 and ground point 26 are both disposed on the mobile terminal PCB.
  • an opening 25 is provided at the bottom of the metal frame 21 so that the entire metal frame 21 is divided into two feeder lines while maintaining the overall structure (the need for decoration, such as aesthetics).
  • the connecting members (the grounding wires in Fig. 1) 27, 28 are respectively disposed at both ends of the opening 25 of the metal frame 21.
  • the connector (feeder in Fig. 1) 22 is connected to the feed point 23 of the mobile terminal antenna, and the connectors 27, 28 are connected to the ground point 26 of the antenna of the mobile terminal.
  • the antenna in the mobile terminal supports multiple frequency bands, such as the GSM850, GSM900, DCS 1800, PCS1900, W900, W1900, W2100 and the like mentioned in the background art.
  • the antenna mode in the mobile terminal is a PIFA antenna. Since the PIFA antenna technology is a very mature technology, the antenna structure and implementation principle are not described in the present invention.
  • the length of the feed line provided on the metal piece of the mobile terminal body should be different from the length of the feed line of the existing antenna on the mobile terminal, which is considering the resonance in the existing PIFA antenna on the mobile terminal.
  • the frequency is designed such that the resonant frequency generated by the feeder is different from the frequency of the wireless signal supported by the existing PIFA antenna, so that no radiation is generated on the frequency point supported by the mobile terminal antenna, thereby ensuring the antenna of the mobile terminal. performance.
  • the PIFA antenna requires a feed line length of 1/4 ⁇ , where ⁇ is the wavelength of the signal to be received.
  • the present invention sets the conductive member on the mobile terminal as the feed line of the antenna to avoid causing the original configuration of the antenna in the mobile terminal. Radiation performance impact.
  • the frequencies supported by the mobile terminal antenna are generally GSM850, GSM900, DCS1800, PCS1900, W900, W1900, W2100.
  • the purpose of the present invention is to make the mobile terminal
  • the conductive member forms an antenna that receives a signal different from the 850M as much as possible.
  • the signal wavelength corresponding to the 850 MHz signal is: 3 x l000000000000 m/s divided by 850 M Hz, that is, the wavelength ⁇ is 0.352941 m, which is about 1/4 times 88.24mm, therefore, the length of the conductive member as the feeder on the mobile terminal is not 88.24mm, and the larger the difference from 88.24mm, the better, for example, can be set to 90mm or more; the longer the feeder length, the frequency of resonance The smaller the impact, the smaller the auxiliary performance of the mobile terminal antenna.
  • the above feeder can also be less than 88.24mm, as long as it is not close to the antenna feeder of other frequency bands supported by the mobile terminal.
  • the length of the feeder is not 88.24 mm; when the existing antenna includes a 900 MHz antenna, the length of the feeder is not 83.33 mm; When the antenna includes an 1800 MHz antenna, the length of the feeder is not 41.67 mm; when the existing antenna includes a 1900 MHz antenna, the length of the feeder is not 39.47 mm; when the existing antenna includes a 2100 MHz antenna The length of the feeder is not longer than 35.71 mm; when the existing antenna comprises a 2400 MHz antenna, the length of the feeder is not longer than 31.25 mm.
  • the above lengths are all theoretical values, and the specific values depend on the actual communication antenna settings. In actual use, the length of the conductive member as the feed line is not more than 30 mm, or may be set to 90 mm or more.
  • the difference between the feeder line on the mobile terminal and the feeder length of the existing antenna of the mobile terminal is larger.
  • the interference with existing antennas is smaller.
  • the metal parts on the mobile terminal can be used as an antenna feeder of a Global Positioning System (GPS), Bluetooth or a wireless fidelity (WIFI) band (when the mobile terminal does not have the antenna of the above system),
  • GPS Global Positioning System
  • WIFI wireless fidelity
  • the feeder design described above is preferably curved to meet the design length of the feeder on a limited mobile terminal body.
  • the above feeder may also be disposed in other parts of the mobile terminal body, such as on the rear casing of the mobile terminal.
  • a corresponding feeder may be disposed on the casing of the mobile terminal.
  • a slot may be formed on the casing of the mobile terminal to form a corresponding feeder, and the two ends of the feeder are respectively It can be connected to the feeding point and grounding point of the mobile terminal antenna.
  • connection feeding point or a grounding point connecting member may be disposed at both ends of the feeding line, and a lead wire (corresponding to the feeding line and the grounding line in FIG. 1 respectively) may be disposed at the feeding point and the grounding point, correspondingly The lead wire can be connected to the feeder.
  • the feed panel of the PIFA antenna is provided with a grounding point and a feeding point.
  • the feeding panel is parallel to the plane of the feeding line of the antenna, and the distance between the two parallel planes is generally greater than 6.5 mm.
  • the feeders are respectively connected to the grounding point and the feeding point on the feeding panel to form a PIFA antenna.
  • the antenna feed line and the grounding point and the feeding point on the feeding panel are connected by a connecting plate perpendicular to the feeding panel. Accordingly, the leads of the feed point and the ground point are preferably perpendicular to the plane in which the feed line lies.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

La présente invention concerne un procédé pour améliorer la performance de rayonnement des antennes. Un élément conducteur est disposé sur un terminal mobile. L'élément conducteur sur le terminal mobile est utilisé comme bras rayonnant de l'antenne de terminal mobile, et la longueur du bras rayonnant est différente de la longueur du bras rayonnant de l'antenne existante sur le terminal mobile. La présente invention concerne en outre un terminal mobile. Un élément conducteur est disposé sur le corps du terminal mobile. L'élément conducteur est utilisé comme bras rayonnant de l'antenne de terminal mobile. La longueur de l'élément conducteur utilisé comme bras rayonnant est inférieure ou égale à 30mm, en variante supérieure ou égale à 90mm. Le bras rayonnant est respectivement relié au point d'alimentation ou au fil d'alimentation de l'antenne de terminal mobile et au point masse ou fil de mise à la terre de l'antenne de terminal mobile. Dans la présente invention, l'élément métallique disposé sur le corps du terminal mobile n'influence pas l'antenne du terminal mobile, ce qui assure la performance de rayonnement de l'antenne du terminal mobile. La solution technique proposée par la présente invention est facile et pratique.
PCT/CN2010/075710 2010-03-19 2010-08-04 Procédé et terminal mobile pour améliorer la performance de rayonnement des antennes WO2011113248A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010139159A CN101814649A (zh) 2010-03-19 2010-03-19 一种改善天线辐射性能的方法及移动终端
CN201010139159.3 2010-03-19

Publications (1)

Publication Number Publication Date
WO2011113248A1 true WO2011113248A1 (fr) 2011-09-22

Family

ID=42621812

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/075710 WO2011113248A1 (fr) 2010-03-19 2010-08-04 Procédé et terminal mobile pour améliorer la performance de rayonnement des antennes

Country Status (2)

Country Link
CN (1) CN101814649A (fr)
WO (1) WO2011113248A1 (fr)

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US11228092B2 (en) 2011-10-21 2022-01-18 Futurewei Technologies, Inc. Wireless communication device with an antenna adjacent to an edge of the device

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US9166279B2 (en) 2011-03-07 2015-10-20 Apple Inc. Tunable antenna system with receiver diversity
US9246221B2 (en) 2011-03-07 2016-01-26 Apple Inc. Tunable loop antennas
KR101334812B1 (ko) * 2011-04-14 2013-11-28 삼성전자주식회사 휴대용 단말기의 안테나 장치
US9112271B2 (en) 2011-10-09 2015-08-18 Lenovo (Beijing) Co., Ltd. Terminal device
CN103066374B (zh) * 2011-10-24 2015-06-03 联想(北京)有限公司 缝隙结构天线装置和终端设备
US9350069B2 (en) 2012-01-04 2016-05-24 Apple Inc. Antenna with switchable inductor low-band tuning
US9190712B2 (en) 2012-02-03 2015-11-17 Apple Inc. Tunable antenna system
TWI581498B (zh) 2012-06-15 2017-05-01 群邁通訊股份有限公司 天線及具該天線的無線通訊裝置
CN103515692B (zh) * 2012-06-19 2019-11-01 深圳富泰宏精密工业有限公司 天线及具有该天线的无线通信装置
CN103094690B (zh) * 2013-01-07 2016-03-30 华为终端有限公司 一种环形天线及相关电子设备
CN103326124B (zh) * 2013-05-29 2015-04-01 上海安费诺永亿通讯电子有限公司 可调式的多频天线系统
CN104300224B (zh) * 2013-07-15 2017-11-03 联想(北京)有限公司 天线装置、电子设备和用于设置天线装置的方法
CN104466392B (zh) * 2013-09-18 2018-01-23 联想(北京)有限公司 天线装置、电子设备和用于设置天线装置的方法
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KR102309066B1 (ko) 2014-10-08 2021-10-06 삼성전자 주식회사 전자 기기 및 그의 안테나 장치
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WO2009054600A1 (fr) * 2007-10-23 2009-04-30 E.M.W. Antenna Co., Ltd. Système d'antenne utilisant des boîtiers de dispositif électronique et dispositif électronique le comprenant
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US11228092B2 (en) 2011-10-21 2022-01-18 Futurewei Technologies, Inc. Wireless communication device with an antenna adjacent to an edge of the device
US11848483B2 (en) 2011-10-21 2023-12-19 Futurewei Technologies, Inc. Wireless communication device with an antenna adjacent to an edge of the device

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