EP2113965A1 - Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne - Google Patents

Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne Download PDF

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Publication number
EP2113965A1
EP2113965A1 EP08155275A EP08155275A EP2113965A1 EP 2113965 A1 EP2113965 A1 EP 2113965A1 EP 08155275 A EP08155275 A EP 08155275A EP 08155275 A EP08155275 A EP 08155275A EP 2113965 A1 EP2113965 A1 EP 2113965A1
Authority
EP
European Patent Office
Prior art keywords
frequency band
radiating element
antenna device
filter
antenna
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Withdrawn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
EP08155275A
Other languages
German (de)
English (en)
Inventor
Axel Von Arbin
Christian Braun
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 EP08155275A priority Critical patent/EP2113965A1/fr
Priority to CN2009801151523A priority patent/CN102017291B/zh
Priority to PCT/SE2009/050431 priority patent/WO2009134198A1/fr
Publication of EP2113965A1 publication Critical patent/EP2113965A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant 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
    • 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
    • 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
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially 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

Definitions

  • the present invention relates generally to antennas, and particularly to antenna devices for portable radio communication devices.
  • An object of the present invention is thus to provide an antenna device which can have reduced size or improved performance compared to known solutions, for a portable radio communication device.
  • an antenna device for a portable radio communication device, comprising a first radiating element having a first feed portion, a second radiating element having a second feed portion, a first filter and a second filter, wherein the first and second radiating elements are interconnected through the first filter, the first radiating element is configured to be tuned to a first frequency band, and the second radiating element is configured to be tuned to a second frequency band, wherein the first radiating element is configured to be fed by at least the first frequency band and a third frequency band lower than the first frequency band and the second frequency band through the first feed portion, the second radiating element is configured to be fed by the second frequency band through the second filter, the first filter is configured to block the first and second frequency bands and pass the third frequency band, and the second filter is configured to block the third frequency band and pass the second frequency band, reduced size can be achieved compared to known antenna devices since the highest frequency band utilizes the antenna volume more efficiently.
  • the first or second radiating element advantageously has a ground portion for grounding the antenna device.
  • the first feed portion is preferably arranged at the first radiating element facing away from the second radiating element and/or the second feed portion is preferably arranged at the second radiating element facing away from the first radiating element.
  • the antenna device for a portable radio communication device such as a mobile phone, a PDA, a portable computer and similar devices, comprises a first radiating element 1 having a first feed portion 5, a second radiating element 2 having a second feed portion 6, a first filter 3, which preferably is a low pass filter 3, and a second filter 4, which preferably is a high pass filter 4.
  • the first radiating element 1 and the second radiating element 2 are connected through the low pass filter 3.
  • the first radiating element 1 is configured to be tuned to a first frequency band and the second radiating element 2 is configured to be tuned to a second frequency band, preferably in the same range or higher than the first frequency band.
  • the low pass filter 3 connects the first radiating element 1 and the second radiating element 2, wherein the position of the low pass filter 3 between the radiating elements 1 and 2 is a part of the specific antenna design and may thus vary.
  • the first radiating element 1 is configured to be fed by the first frequency band and a third frequency band lower than the first frequency band and the second frequency band. Preferably both the first and third frequency bands are fed through the first feed portion 5. Alternatively, the first radiating element 1 is provided with a third feed portion, and the first and third frequency bands are fed through the first and third feed portions, respectively. The first radiating element 1, the second radiating element 2 and the low pass filter 3 together are configured to be tuned to the third frequency band.
  • the second radiating element 2 is configured to be fed by the second frequency band.
  • the second frequency band is fed through the high pass filter 4, which is configured to block at least the third frequency band and pass the second frequency band.
  • the high pass filter 4 could further be configured to also block the first frequency band, although is should be sufficiently blocked by the low pass filter 3 as described below.
  • the low pass filter 3 is configured to block the first and second frequency bands and to pass the third frequency band.
  • the high pass filter 4 and the low pass filter 3 are preferably provided by lumped components, since it provides a high degree of design freedom.
  • the filters 3 and 4 are provided by e.g. distributed components that are implemented in the pattern of the antenna elements 1 and/or 2.
  • a filter component e.g. ceramic or LTCC
  • the antenna device is preferably provided with a grounding portion 8 for the first radiating element 1, when the antenna device is arranged over ground or near ground, in order to ground the antenna device.
  • the radiating elements 1 and 2 are depicted as patches. However, the radiating elements 1 and 2 can also be made like e.g. off-ground antennas (monopole or IFA).
  • the antenna device can also be provided with parasitic radiators to boost performance in one band, having no galvanic connection to the radiating elements 1 and 2 themselves.
  • filters have been described above as low pass filter and high pass filter, respectively, they could alternatively be e.g. bandpass or bandstop filters.
  • At least the third frequency band is preferably distinct apart from the first and second frequency bands, for relevant separation of the two radiating elements, to allow use of simple filters. Also the first and second frequency bands are preferably distinct apart.
  • Tri-band GSM comprises GSM900, 1800 and 1900, which would be fed through the first feed portion 5 to the first radiating element 1.
  • WCDMA2100 would be fed through the high pass filter 4 and the second feed portion 6 to the second radiating element 2.
  • the first filter 3 is configured to pass frequencies below 1400 MHz and block frequencies there above.
  • the second filter 4 is configured to pass signals over 1900 MHz and block frequencies there below.
  • the first radiating element 1 is configured for passing S 11 requirements for GSM1800 and 1900.
  • the second radiating element 2 is configured for passing S 11 requirements for
  • the first and second radiating elements 1 and 2 are together configured to pass S 11 requirements for GSM900.
  • GSM comprises Rx and TX frequency bands.
  • GSM 900 Rx and Tx, GSM1800 RX and Tx, as well as GSM1900 Rx and Tx would be fed through the first feed portion 5 to the first radiating element 1.
  • GSM1800 Rx and GSM1900 Rx would be fed through the high pass filter 4 and the second feed portion 6 to the second radiating element 2.
  • the first filter 3 is configured to pass frequencies below 1400 MHz and block frequencies there above.
  • the second filter 4 is configured to pass frequencies above 1400 MHz and block frequencies there below.
  • the first radiating element 1 is configured for passing S 11 requirements for GSM1800 and GSM1900.
  • the second radiating element 2 is configured for passing S 11 requirements for GSM1800 Rx and GSM1900 Rx.
  • the first and second radiating elements 1 and 2 are together configured to pass S 11 requirements for GSM900.
  • FIG. 2 An antenna device according to a second embodiment of the present invention will now be described with reference to Fig. 2 .
  • This second embodiment is identical to the first embodiment described above apart from the following.
  • a grounding portion 9 is arranged on the second radiating element 2 instead of on the first radiating element 1, which provides for a different functionality of the antennas according to the first and second embodiments, especially in the third frequency band.
  • the grounding portion 9 is preferably positioned less than 10 mm from the high pass filter 4, more preferably less than 5 mm, and most preferably less than 2 mm.
  • the grounding portion 9 can alternatively be arranged on the first radiating element 1, or not used at all, as in the first embodiment described above.
  • a third filter 10 is provided between the first and second radiating elements 1 and 2.
  • the use of a third filter 10 allows greater flexibility in design of the desired filter functions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
EP08155275A 2008-04-28 2008-04-28 Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne Withdrawn EP2113965A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08155275A EP2113965A1 (fr) 2008-04-28 2008-04-28 Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne
CN2009801151523A CN102017291B (zh) 2008-04-28 2009-04-24 天线装置和包括天线装置的便携无线电通信装置
PCT/SE2009/050431 WO2009134198A1 (fr) 2008-04-28 2009-04-24 Dispositif d’antenne et dispositif de communication radio portable comprenant le dispositif d’antenne

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08155275A EP2113965A1 (fr) 2008-04-28 2008-04-28 Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne

Publications (1)

Publication Number Publication Date
EP2113965A1 true EP2113965A1 (fr) 2009-11-04

Family

ID=39832632

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08155275A Withdrawn EP2113965A1 (fr) 2008-04-28 2008-04-28 Antenne multibande à double alimentation et dispositif de communication radio portable comportant une telle antenne

Country Status (3)

Country Link
EP (1) EP2113965A1 (fr)
CN (1) CN102017291B (fr)
WO (1) WO2009134198A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022046028A1 (fr) * 2020-08-25 2022-03-03 Hewlett-Packard Development Company, L.P. Antennes multibande

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102215658B1 (ko) * 2019-10-11 2021-02-15 (주)휴맥스 통합형 안테나 모듈 및 이를 포함하는 차량용 스마트 안테나 디바이스
KR102215657B1 (ko) * 2019-10-11 2021-02-15 (주)휴맥스 멀티 밴드 안테나 및 이를 포함하는 차량용 안테나 어셈블리
CN111106452A (zh) * 2019-12-13 2020-05-05 惠州Tcl移动通信有限公司 天线阵列、fpc及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61265905A (ja) 1985-05-20 1986-11-25 Toyo Commun Equip Co Ltd 二周波共用アンテナ
JPH10247814A (ja) 1997-03-05 1998-09-14 Mitsubishi Electric Corp ３周波共用アンテナ装置
JPH11251825A (ja) 1998-03-03 1999-09-17 Kenwood Corp 多周波共振型逆ｆ型アンテナ
US20060262028A1 (en) 2002-10-15 2006-11-23 Ken Takei Small multi-mode antenna and rf module using the same
EP1764866A1 (fr) * 2005-09-15 2007-03-21 Infineon Tehnologies AG Antenne monopole integrée miniaturisée
US20080174508A1 (en) * 2007-01-19 2008-07-24 Hiroshi Iwai Array antenna apparatus having at least two feeding elements and operable in multiple frequency bands

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6078295A (en) * 1999-02-24 2000-06-20 Ericsson Inc. Tri-band antenna
JP2002246942A (ja) * 2001-02-19 2002-08-30 Sony Corp スイッチ装置および携帯通信端末装置
SE528017C2 (sv) * 2004-02-02 2006-08-08 Amc Centurion Ab Antennanordning och bärbar radiokommunikationsanordning innefattande sådan antennanordning
CN1728449A (zh) * 2004-07-29 2006-02-01 智邦科技股份有限公司 天线
SE528569C2 (sv) * 2004-09-13 2006-12-19 Amc Centurion Ab Antennanordning och bärbar radiokommunikationsanordning innefattande sådan antennanordning
US7277056B1 (en) * 2006-09-15 2007-10-02 Laird Technologies, Inc. Stacked patch antennas

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61265905A (ja) 1985-05-20 1986-11-25 Toyo Commun Equip Co Ltd 二周波共用アンテナ
JPH10247814A (ja) 1997-03-05 1998-09-14 Mitsubishi Electric Corp ３周波共用アンテナ装置
JPH11251825A (ja) 1998-03-03 1999-09-17 Kenwood Corp 多周波共振型逆ｆ型アンテナ
US20060262028A1 (en) 2002-10-15 2006-11-23 Ken Takei Small multi-mode antenna and rf module using the same
EP1764866A1 (fr) * 2005-09-15 2007-03-21 Infineon Tehnologies AG Antenne monopole integrée miniaturisée
US20080174508A1 (en) * 2007-01-19 2008-07-24 Hiroshi Iwai Array antenna apparatus having at least two feeding elements and operable in multiple frequency bands

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022046028A1 (fr) * 2020-08-25 2022-03-03 Hewlett-Packard Development Company, L.P. Antennes multibande

Also Published As

Publication number Publication date
WO2009134198A1 (fr) 2009-11-05
CN102017291B (zh) 2013-10-09
CN102017291A (zh) 2011-04-13

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