EP2234205A1 - Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne - Google Patents

Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne Download PDF

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Publication number
EP2234205A1
EP2234205A1 EP09156032A EP09156032A EP2234205A1 EP 2234205 A1 EP2234205 A1 EP 2234205A1 EP 09156032 A EP09156032 A EP 09156032A EP 09156032 A EP09156032 A EP 09156032A EP 2234205 A1 EP2234205 A1 EP 2234205A1
Authority
EP
European Patent Office
Prior art keywords
filtering means
antenna device
radiating element
frequency band
elongated radiating
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.)
Withdrawn
Application number
EP09156032A
Other languages
German (de)
English (en)
Inventor
Andrei Kaikkonen
Christian Braun
Martin Trossing
Peter Lindberg
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.)
Laird Technologies AB
Original Assignee
Laird Technologies AB
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 Laird Technologies AB filed Critical Laird Technologies AB
Priority to EP09156032A priority Critical patent/EP2234205A1/fr
Priority to CN201010190397A priority patent/CN101867085A/zh
Publication of EP2234205A1 publication Critical patent/EP2234205A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—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
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/328—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors between a radiating element and ground
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching

Definitions

  • the present invention relates generally to antenna devices and more particularly to an antenna device for use in a portable radio communication device, such as a mobile phone.
  • Internal antennas have been used for some time in portable radio communication devices. There are a number of advantages connected with using internal antennas, of which can be mentioned that they are small and light, making them suitable for applications wherein size and weight are of importance, such as in mobile phones, PDA, portable computer or similar devices.
  • the FM radio application is defined as frequencies between 88-108 MHz in most of the world and frequencies between 76-90 MHz in Japan.
  • Prior art conventional antenna configurations, such as loop antennas or monopole antennas, fitted within the casing of a portable radio communication device will result in unsatisfactory operation in that the antenna either has too bad performance over a sufficiently wide frequency band or sufficient performance over a too narrow frequency band.
  • a conventional FM antenna for portable radio communication devices is usually provided in the headset wire connected to the communication device.
  • This configuration with a relatively long wire permits an antenna length that is sufficient also for low frequency applications.
  • this solution is obviously not feasible.
  • a portable radio communication device is today many times provided with frequency operational coverage for other frequency bands then FM, such as GSM900, GSM1800, GPS, Bluetooth, WLAN, WCDMA and GPS.
  • FM such as GSM900, GSM1800, GPS, Bluetooth, WLAN, WCDMA and GPS.
  • a portable radio communication device has limited space and it is thus desirable to, if possible, add multiple functionality to an antenna device.
  • An object of the present invention is to provide an antenna device for a portable radio communication device, which efficiently utilizes available space of the portable radio communication device and provides for simultaneous operation for at least a first frequency band and a second frequency band.
  • an antenna device for a portable radio communication device adapted for simultaneous operation at a first frequency band and a second frequency band
  • the antenna device comprises a first elongated radiating element having a first end and a second end, a second elongated radiating element having a first end and a second end, and filtering means
  • the first end of the first elongated radiating element comprises a feeding point for feeding the antenna device simultaneously with the first frequency band and the second frequency band
  • the second end of the first elongated radiating element is connected to the filtering means
  • the first end of the second elongated radiating element is connected to the filtering means
  • the filtering means is configured to pass operating frequencies of the first frequency band and to stop operating frequencies of the second frequency band, which antenna device efficiently utilizes available space, since two operating frequencies are provided by a single feed point without significant increases of space.
  • the first frequency band is preferably FM and the second frequency band is preferably BT.
  • the antenna device is preferably open-ended for FM operation, in order to provide an antenna device less affected by EMI.
  • the second end of the second elongated radiating element is grounded, providing a loop structure for e.g. FM operation.
  • the first filtering means is an inductor, providing effective blocking of open-ended structure for BT operation at the same time passing FM operation.
  • the antenna device preferably utilizes the whole length of the first and second elongated radiating element for FM operation.
  • the first elongated radiating element preferably has a length configured for BT operation, efficiently providing simultaneous FM and BT operation through a single feeding point.
  • the antenna comprises second filtering means connecting a first transceiver to the feeding point, the second filtering means configured to pass operating frequencies for the first frequency band and to block operating frequencies for the second frequency band, for efficient implementation of simultaneous operation.
  • third filtering means connecting a second transceiver to the feeding point, the third filtering means configured to pass operating frequencies for the second frequency band and to block operating frequencies for the first frequency band, is preferably provided for efficient implementation of simultaneous operation.
  • the antenna device is adapted for simultaneous operation at a third frequency band and comprises a third elongated radiating element having a first end and a second end, and seventh filtering means connected between the second end of the second elongated radiating element and the first end of the third radiating element, and eighth filtering means connecting the second elongated radiating element to ground, whereby efficient implementation of simultaneous operation also for third operation is achieved.
  • an antenna device having a single feeding point for simultaneous operation of FM, BT and GPS is achieved.
  • the antenna device comprises ninth filtering means connecting the second end of the third elongated radiating element to ground, wherein the ninth filtering means is configured to pass operating frequencies for the first frequency band and to block operating frequencies for the third frequency band, for efficient implementation simultaneous operation is achieved.
  • a portable radio communication device preferably comprises an antenna device, wherein the first and second elongated radiating elements are arranged over a ground plane device.
  • the antenna device By preferably providing the antenna device with a dielectric carrier supporting the first and second elongated radiating element, a robust installation of the antenna device is provided.
  • the dielectric carrier is preferably part of the back cover of the portable radio communication device, which provides for a cost efficient and robust solution.
  • the BT antenna efficiently is an ILA antenna.
  • filtering means as a capacitor
  • BT operation can be configured without much interference for FM configuration.
  • radiating element is used. It is to be understood that this term is intended to cover electrically conductive elements arranged for receiving and/or transmitting radio signals.
  • the antenna device is configured to provide the portable radio communication device with simultaneous operation for a first and a second frequency band, FM and BT.
  • the antenna device comprises a first elongated radiating element 1, having a first end and a second end, and a second radiating element 2, having a first end and a second end.
  • the antenna device further comprises first filter means 3 connected between the second end of the first elongated radiating element 1 and the first end of the second elongated radiating element 2.
  • the first end of the first elongated radiating element 1 comprises a feeding point for feeding of FM and BT band frequencies.
  • the first end of the first elongated radiating element 1 is connected to second filtering means 6 and third filtering means 9.
  • the second filtering means 6 is in turn connected to fourth filtering means 7 and ground through fifth filtering means 8.
  • the fourth filtering means 7 is in turn connected to a first transceiver 4, a FM transceiver.
  • the third filtering means 9 is in turn connected to a second transceiver 5, a BT (Bluetooth) transceiver, and to ground through sixth filtering means 10.
  • the second end of the second elongated radiating element 2 is grounded.
  • the first and second elongated radiating elements 1 and 2 together have a length 11 configured for FM operation, about 90 mm.
  • the first elongated radiating element 1 have a length 12 configured for BT operation, about 30 mm.
  • the exemplary lengths given above are dependent on e.g. distance above a ground plane device 13, in this case based on the distance of about 5 mm.
  • the first and second radiating elements are preferably planar elements supported by a dielectric carrier.
  • the dielectric carrier is e.g. a portion of the back cover of the portable radio communication device.
  • the dielectric carrier is e.g. a portion of the middle deck the portable radio communication device.
  • the first and second radiating elements are alternatively e.g. self-supported.
  • the first filtering means 3 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the first filtering means 3 is in such a way configured to pass FM operation and to block BT operation.
  • the second filtering means 6 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the second filtering means 6 is in such a way configured to pass FM operation and to block BT operation.
  • the third filtering means 9 is preferably provided as a capacitor of about 1 pF.
  • the third filtering means 9 is in such a way configured to block FM operation and to match the BT transceiver 5.
  • the fourth filtering means 7 is preferably provided as an inductor of about 56 nH, but could alternatively be provided as parallel resonant circuit.
  • the fourth filtering means 7 is in such a way configured to low pass FM operation.
  • the fifth filtering means 8 is preferably provided as a capacitor of about 30 pF.
  • the fifth filtering means 8 is in such a way configured to tune the first and second elongated radiating elements for FM operation.
  • the sixth filtering means 10 is preferably provided as an inductor of about 3 nH, but could alternatively be provided as parallel resonant circuit.
  • the sixth filtering means 10 is in such a way configured to match the BT transceiver 5, together with the third filtering means 3.
  • the antenna device is in such a way configured to simultaneously with FM frequencies operate at BT frequencies.
  • the antenna device thus effectively forms a half-loop radiating element for FM operation.
  • a half-loop antenna is a virtual loop antenna, by being provided over a ground plane device 13.
  • the antenna device thus effectively forms an ILA antenna for BT operation.
  • FIG. 3 A second embodiment of an antenna device according to the present invention is illustrated in Fig. 3 .
  • the second embodiment of the antenna device is identical with the first embodiment of the antenna device described above apart from the following.
  • the second end of the second elongated radiating element 2 is open ended, i.e. without grounding.
  • the second filtering means 6 is short-circuited, and the fifth filtering means 8 is preferably an inductor of about 470 nH, but could alternatively be provided as parallel resonant circuit.
  • the fifth filtering means 8 is in such a way configured to tune the first and second elongated radiating elements for FM operation and to block BT operation.
  • the antenna device thus effectively forms an ILA antenna for FM operation and for BT operation, respectively.
  • monopole FM solutions can provide superior performance compared to the half-loop type.
  • the antenna device is configured to provide the portable radio communication device with simultaneous operation for a first, a second and a third frequency band, FM, BT and GPS.
  • the antenna device comprises a first elongated radiating element 1, having a first end and a second end, and a second radiating element 2, having a first end and a second end, and a third elongated radiating element 14 having a first end and a second end.
  • the antenna device further comprises first filter means 3 connected between the second end of the first elongated radiating element 1 and the first end of the second elongated radiating element 2, and seventh filtering means 15 connected between the second end of the second elongated radiating element 2 and the first end of the third elongated radiating element 14.
  • the first end of the first elongated radiating element 1 comprises a feeding point for feeding of FM and BT band frequencies.
  • the first end of the first elongated radiating element 1 is connected to second filtering means 6 and third filtering means 9.
  • the second filtering means 6 is in turn connected to fourth filtering means 7 and ground through fifth filtering means 8.
  • the fourth filtering means 7 is in turn connected to a first transceiver 4, a FM transceiver.
  • the third filtering means 9 is in turn connected to a second transceiver 5, a BT (Bluetooth) transceiver, and to ground through sixth filtering means 10.
  • the second elongated radiating element 2 is grounded through eighth filtering means 16.
  • the grounding is close to the first filtering means 3.
  • the second end of the third elongated radiating element 14 is grounded through ninth filtering means 17 and connected to tenth filtering means 18.
  • the tenth filtering means 18 is in turn grounded through eleventh filtering means 19 and connected to a third receiver 20, a GPS receiver.
  • the first, second and third elongated radiating elements 1, 2 and 14 together have a length 11 configured for FM operation, about 105 mm.
  • the first elongated radiating element 1 have a length 12 configured for BT operation, about 30 mm.
  • the connection point for the eighth filtering means 16 to the second radiating element 2 is about 5 mm from the first filtering means 3, for good GPS isolation.
  • the third elongated radiating element 14 has a length configured for possible WCDMA_Rx operation, about 40 mm.
  • the second and third elongated radiating elements 2 and 14 together have a length 21 configured for GPS operation, of about 70 mm.
  • the exemplary lengths given above are dependent on e.g. distance above a ground plane device 13, in this case based on the distance of about 5 mm.
  • the first, second and third radiating elements are preferably planar elements supported by a dielectric carrier.
  • the dielectric carrier is e.g. a portion of the back cover of the portable radio communication device.
  • the dielectric carrier is e.g. a portion of the middle deck the portable radio communication device.
  • the first, second and third radiating elements are alternatively e.g. self-supported.
  • the first filtering means 3 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the first filtering means 3 is in such a way configured to pass FM operation and to block BT operation.
  • the second filtering means 6 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the second filtering means 6 is in such a way configured to pass FM operation and to block BT operation.
  • the third filtering means 9 is preferably provided as a capacitor of about 1 pF.
  • the third filtering means 9 is in such a way configured to block FM operation and to match the BT transceiver 5.
  • the fourth filtering means 7 is preferably provided as an inductor of about 56 nH, but could alternatively be provided as parallel resonant circuit.
  • the fourth filtering means 7 is in such a way configured to low pass FM operation.
  • the fifth filtering means 8 is preferably provided as a capacitor of about 30 pF.
  • the fifth filtering means 8 is in such a way configured to tune the first, second and third elongated radiating elements for FM operation.
  • the sixth filtering means 10 is preferably provided as an inductor of about 3 nH, but could alternatively be provided as parallel resonant circuit.
  • the sixth filtering means 10 is in such a way configured to match the BT transceiver 5, together with the third filtering means 3.
  • the seventh filtering means 15 is preferably provided as an inductor of about 15 nH, but could alternatively be provided as parallel resonant circuit.
  • the seventh filtering means 15 is in such a way configured to pass and tune for FM and GPS operation and to block possible WCDMA_Rx operation.
  • the eighth filtering means 16 is preferably provided as a capacitor of about 5 pF.
  • the eighth filtering means 16 is in such a way configured to together with first filtering means 3 block GPS operation.
  • the ninth filtering means 17 is preferably provided as an inductor of about 10 nH, but could alternatively be provided as parallel resonant circuit.
  • the ninth filtering means 17 is in such a way configured to short-circuit FM frequencies and to block GPS frequencies.
  • the tenth filtering means 18 is preferably provided as a capacitor of about 1 pF.
  • the tenth filtering means 18 is in such a way configured to block FM operation and to match the GPS receiver 20.
  • the eleventh filtering means 19 is preferably provided as an inductor of about 3 nH, but could alternatively be provided as parallel resonant circuit.
  • the eleventh filtering means 19 is in such a way configured to match the GPS receiver 20.
  • the antenna device is in such a way configured to simultaneously with FM frequencies operate at BT and GPS frequencies.
  • the antenna device thus effectively forms a half-loop antenna for FM operation.
  • the antenna device thus effectively forms an ILA antenna for BT operation and a grounded ILA antenna for GPS operation.
  • FIG. 5 A fourth embodiment of an antenna device according to the present invention is illustrated in Fig. 5 .
  • the fourth embodiment of the antenna device is identical with the third embodiment of the antenna device described above apart from the following.
  • the second filtering means 6 and the ninth filtering means 17 are short-circuited.
  • the fifth filtering means 8 is preferably provided as an inductor of about 470 nH.
  • the fifth filtering means 8 is in such a way configured to block BT operation and to tune FM operation.
  • the antenna device thus effectively forms an ILA antenna for FM and BT operation and a grounded ILA for GPS operation.
  • the antenna device is configured to provide the portable radio communication device with simultaneous operation for a first, a second and a third frequency band, FM, BT and GPS.
  • the antenna device comprises a first elongated radiating element 1, having a first end and a second end, and a second radiating element 2, having a first end and a second end, and a third elongated radiating element 14 having a first end and a second end.
  • the antenna device further comprises first filter means 3 connected between the second end of the first elongated radiating element 1 and the first end of the second elongated radiating element 2, and seventh filtering means 15 connected between the second end of the second elongated radiating element 2 and the first end of the third elongated radiating element 14.
  • the first end of the first elongated radiating element 1 comprises a feeding point for feeding of FM, BT and GPS band frequencies.
  • the first end of the first elongated radiating element 1 is connected to second filtering means 6 and third filtering means 9.
  • the second filtering means 6 is in turn connected to fourth filtering means 7 and ground through fifth filtering means 8.
  • the fourth filtering means 7 is in turn connected to a first transceiver 4, a FM transceiver.
  • the third filtering means 9 is in turn grounded through sixth filtering means 10 and connected to a diplexer 22.
  • the diplexer is in turn connected to a second transceiver 5, a BT transceiver, and to a third receiver 20, a GPS receiver.
  • the second elongated radiating element 2 is grounded through eighth filtering means 16.
  • the grounding is close to the seventh filtering means 15.
  • the second end of the third elongated radiating element 14 is grounded.
  • the first, second and third elongated radiating elements 1, 2 and 14 together have a length 11 configured for FM operation, about 115 mm.
  • the first elongated radiating element 1 have a length 12 configured for BT operation, about 30 mm.
  • the connection point for the eighth filtering means 16 to the second radiating element 2 is about 5 mm from the seventh filtering means 15, for good GPS isolation.
  • the third elongated radiating element 14 has a length configured for possible WCDMA_Rx operation, about 40 mm.
  • the first and second elongated radiating elements 1 and 2 together have a length 23 configured for GPS operation, of about 70 mm.
  • the exemplary lengths given above are dependent on e.g. distance above a ground plane device 13, in this case based on the distance of about 5 mm.
  • the first, second and third radiating elements are preferably planar elements supported by a dielectric carrier.
  • the dielectric carrier is e.g. a portion of the back cover of the portable radio communication device.
  • the dielectric carrier is e.g. a portion of the middle deck the portable radio communication device.
  • the first, second and third radiating elements are alternatively e.g. self-supported.
  • the first filtering means 3 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the first filtering means 3 is in such a way configured to pass FM and GPS operation and to block BT operation.
  • the second filtering means 6 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the second filtering means 6 is in such a way configured to pass FM operation and to block BT and GPS operation.
  • the third filtering means 9 is preferably provided as a capacitor of about 1 pF.
  • the third filtering means 9 is in such a way configured to block FM operation and to match the BT transceiver 5.
  • the fourth filtering means 7 is preferably provided as an inductor of about 56 nH, but could alternatively be provided as parallel resonant circuit.
  • the fourth filtering means 7 is in such a way configured to low pass FM operation.
  • the fifth filtering means 8 is preferably provided as a capacitor of about 30 pF.
  • the fifth filtering means 8 is in such a way configured to tune the first, second and third elongated radiating elements for FM operation.
  • the sixth filtering means 10 is preferably provided as an inductor of about 3 nH, but could alternatively be provided as parallel resonant circuit.
  • the sixth filtering means 10 is in such a way configured for BT and GPS matching, together with the third filtering means 3.
  • the seventh filtering means 15 is preferably provided as an inductor of about 20 nH, but could alternatively be provided as parallel resonant circuit.
  • the seventh filtering means 15 is in such a way configured to pass FM operation and to block GPS operation together with eighth filtering means 16 and to block possible WCDMA_Rx operation.
  • the eighth filtering means 16 is preferably provided as a capacitor of about 5 pF.
  • the eighth filtering means 16 is in such a way configured to together with seventh filtering means 15 block GPS operation.
  • the ninth filtering means 17 is preferably provided as an inductor of about 10 nH, but could alternatively be provided as parallel resonant circuit.
  • the ninth filtering means 17 is in such a way configured to short FM operation.
  • the antenna device is in such a way configured to simultaneously with FM frequencies operate at BT and GPS frequencies.
  • the antenna device thus effectively forms a half-loop radiating element for FM operation.
  • the antenna device thus effectively forms an ILA antenna for BT operation and a grounded ILA antenna for GPS operation.
  • FIG. 7 A sixth embodiment of an antenna device according to the present invention is illustrated in Fig. 7 .
  • the sixth embodiment of the antenna device is identical with the fifth embodiment of the antenna device described above apart from the following.
  • the second end of the third elongated radiating element 14 is open ended, i.e. without grounding.
  • the second filtering means 6 is short-circuited, and the fifth filtering means 8 is preferably an inductor of about 470 nH, but could alternatively be provided as parallel resonant circuit.
  • the fifth filtering means 8 is in such a way configured to tune the first, second and third elongated radiating elements for FM operation and to block BT and GPS operation.
  • the antenna device thus effectively forms an ILA antenna for FM operation and for BT operation, respectively, and a grounded ILA for GPS operation.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)
EP09156032A 2009-03-24 2009-03-24 Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne Withdrawn EP2234205A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP09156032A EP2234205A1 (fr) 2009-03-24 2009-03-24 Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne
CN201010190397A CN101867085A (zh) 2009-03-24 2010-03-24 天线设备和包括该天线设备的便携式无线电通信设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09156032A EP2234205A1 (fr) 2009-03-24 2009-03-24 Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne

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Cited By (6)

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WO2011131247A1 (fr) * 2010-04-23 2011-10-27 Laird Technologies Ab Dispositif d'antenne et dispositif électronique portatif comprenant un tel dispositif d'antenne
EP2963736A1 (fr) * 2014-07-03 2016-01-06 Alcatel Lucent Élément d'antenne multibande et antenne
JP2018137811A (ja) * 2018-04-26 2018-08-30 華為終端（東莞）有限公司 アンテナおよび端末装置
US10283864B2 (en) 2013-12-20 2019-05-07 Huawei Device (Dongguan) Co., Ltd. Antenna and terminal
US10680331B2 (en) 2015-05-11 2020-06-09 Carrier Corporation Antenna with reversing current elements
EP2940787B1 (fr) * 2012-12-21 2020-06-17 Murata Manufacturing Co., Ltd. Dispositif d'antenne et appareil électronique

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JPH11251825A (ja) * 1998-03-03 1999-09-17 Kenwood Corp 多周波共振型逆ｆ型アンテナ
US6204819B1 (en) * 2000-05-22 2001-03-20 Telefonaktiebolaget L.M. Ericsson Convertible loop/inverted-f antennas and wireless communicators incorporating the same
US20060262028A1 (en) * 2002-10-15 2006-11-23 Ken Takei Small multi-mode antenna and rf module using the same
US20060097918A1 (en) * 2002-11-18 2006-05-11 Tadashi Oshiyama Antenna for a plurality of bands
WO2005074070A1 (fr) * 2004-02-02 2005-08-11 Amc Centurion Ab Dispositif d'antenne et dispositif de radiocommunications portatif equipe de ce dispositif
DE202004021138U1 (de) * 2004-08-19 2007-02-22 Hirschmann Electronics Gmbh & Co. Kg Klemmtechnik ohne Verschraubung bei Antennendosen
US7436365B1 (en) * 2007-05-02 2008-10-14 Motorola, Inc. Communications assembly and antenna radiator assembly

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011131247A1 (fr) * 2010-04-23 2011-10-27 Laird Technologies Ab Dispositif d'antenne et dispositif électronique portatif comprenant un tel dispositif d'antenne
EP2940787B1 (fr) * 2012-12-21 2020-06-17 Murata Manufacturing Co., Ltd. Dispositif d'antenne et appareil électronique
US10283864B2 (en) 2013-12-20 2019-05-07 Huawei Device (Dongguan) Co., Ltd. Antenna and terminal
EP2963736A1 (fr) * 2014-07-03 2016-01-06 Alcatel Lucent Élément d'antenne multibande et antenne
US10680331B2 (en) 2015-05-11 2020-06-09 Carrier Corporation Antenna with reversing current elements
JP2018137811A (ja) * 2018-04-26 2018-08-30 華為終端（東莞）有限公司 アンテナおよび端末装置

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