EP2493010A1 - Agencement d'antenne et dispositif de communication radio portable comportant un tel agencement d'antenne - Google Patents

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

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Publication number
EP2493010A1
EP2493010A1 EP11156253A EP11156253A EP2493010A1 EP 2493010 A1 EP2493010 A1 EP 2493010A1 EP 11156253 A EP11156253 A EP 11156253A EP 11156253 A EP11156253 A EP 11156253A EP 2493010 A1 EP2493010 A1 EP 2493010A1
Authority
EP
European Patent Office
Prior art keywords
antenna element
antenna
turn loop
radio communication
communication device
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Withdrawn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
EP11156253A
Other languages
German (de)
English (en)
Inventor
Andrei Kaikkonen
Marek Chacinski
Lukasz Grynczel
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 EP11156253A priority Critical patent/EP2493010A1/fr
Priority to CN2012100498253A priority patent/CN102655263A/zh
Publication of EP2493010A1 publication Critical patent/EP2493010A1/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Withdrawn legal-status Critical Current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
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • 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

Definitions

  • the present invention relates generally to antenna arrangements and more particularly to an antenna arrangement, comprising a multiple-turn loop NFC antenna element, for a portable radio communication device.
  • Internal antennas have been used for some time in portable radio communication devices. There are a number of advantages connected with using internal antennas compared to protruding 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 computers or similar devices.
  • NFC Near Field Communication
  • NFC operating band is about 13 MHz.
  • a portable radio communication device is today many times provided with frequency operational coverage for other frequency bands than NFC, such as FM, GSM900, GSM1800, GPS, BT, WLAN, WCDMA and GPS.
  • a portable radio communication device has limited space and it is thus desirable, if possible, to add multiple functionalities to an antenna arrangement.
  • all complementary antennas i.e. non-cellular antennas such as NFC and FM, are typically allocated to a limited region of a mobile phone. Due to the close proximity of the antennas isolation between the antennas will generally be a problem.
  • An object of the present invention is to provide an antenna arrangement for a portable radio communication device providing at least FM and NFC functionality for the portable radio communication device with high FM and NFC antenna efficiency.
  • both FM and NFC functionality can be provided with high FM and NFC antenna efficiency.
  • both antenna elements may e.g. be positioned on the same flex-film, which e.g. facilitates manufacturing and fixing relative positioning between the FM antenna element and the multiple-turn loop NFC antenna element.
  • the antenna element may be positioned close to each other without to high coupling to each other.
  • the FM antenna element is preferably narrower across the multiple-turn loop NFC antenna element than within the multiple-turn loop NFC antenna element.
  • each other the FM antenna element and the multiple-turn loop NFC antenna element are preferably positioned on opposite sides of a flexible carrier such as a flex-film.
  • a part of the multiple-turn loop NFC antenna element is preferably folded relative the rest of the multiple-turn loop NFC antenna element.
  • the antenna arrangement preferably comprises a first and a second FM antenna element positioned parallel relative each other.
  • the first FM antenna element is preferably an elongated monopole antenna configured for FM Rx.
  • the elongation of the monopole is along the whole top edge of the ground plane device of the portable radio communication device.
  • the second FM antenna element is preferably a half-loop antenna configured for FM Tx.
  • a portable radio communication device is also provided.
  • 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.
  • FIG. 1 An antenna arrangement for a portable radio communication device, such as a mobile phone or similar device, according to a first embodiment of the present invention will now be described with reference to Fig. 1 .
  • the antenna arrangement comprises a multiple-turn loop NFC antenna element 2 arranged in a first layer and a first elongated FM antenna element 3 and a second elongated FM antenna element 4 arranged in a second layer.
  • the first and second layers are arranged substantially in parallel and the second layer is preferably arranged on top of the second layer.
  • the multiple-turn loop NFC antenna element 2 is arranged on a flexible carrier such as a flex-film, which advantageously is arranged on a dielectric carrier, which in turn is mounted to a PCB 1 of the portable radio communication device.
  • the first elongated FM antenna element 3 and the second elongated FM antenna element 4 are preferably arranged on a flex-film, which is e.g. arranged on the dielectric carrier, which the multiple-turn loop NFC antenna element 2 is arranged on, or arranged in a top cap of a cover of the portable radio communication device.
  • the flex-film for all three antenna elements are preferably a common double-sided flex-film, wherein the multiple-turn loop NFC antenna element 2 is arranged on a first side of the double-sided flex-film facing the dielectric carrier and the first and second FM antenna elements 3 and 4 are arranged on a second side of the double-sided flex-film facing away from the dielectric carrier.
  • the first and second FM antenna elements 3 and 4 are arranged on the top cap of the portable radio communication device they are preferably provided by LDS directly on the top cap instead of arranging a flex-film on the top cap.
  • the multiple-turn loop NFC antenna element 2 is generally planar, but is preferably partly folded over the top edge of the PCB 1 and a possible dielectric carrier of the portable radio communication device to comply with NFC operation requirements regarding directivity.
  • the PCB 1 generally acts as a ground plane device for the multiple-turn loop NFC antenna element 2 and the FM antenna elements 3 and 4.
  • the first elongated FM antenna element 3 is preferably configured for receiving FM signals (FM Rx), and the second elongated FM antenna element 4 is preferably configured for transmitting FM signals (FM Tx).
  • the FM antenna element 3 is preferably an elongate monopole antenna over a ground plane device 1 (the PCB) arranged along the whole top edge of the PCB 1 of the portable radio communication device, providing maximum FM performance.
  • the FM antenna element 4 is preferably a half-loop antenna over the ground plane device 1 (the PCB).
  • the second elongated FM antenna element 4 is preferably arranged parallel with the first elongated FM antenna element 3.
  • the first and second layers are preferably arranged substantially in parallel and the FM antenna elements 3 and 4 are routed perpendicularly across the multiple-turn loop NFC antenna element 2 and over the empty inner portion of the multiple-turn loop NFC antenna element 2, as illustrated in Fig. 1 .
  • FIG. 2 An antenna arrangement according to a second embodiment of the present invention will now be described with reference to Fig. 2 .
  • This second embodiment of the present invention is identical to the first embodiment describe above apart from the following.
  • the FM antenna elements 3 and 4 are wider within the multiple-turn loop NFC antenna element 2 than across the multiple-turn loop NFC antenna element 2.
  • the FM antenna elements 3 and 4 are preferably configured with a width of at least 1 mm within the multiple-turn loop NFC antenna element 2.
  • This third embodiment of the present invention is identical to the first embodiment describe above apart from the following.
  • the FM antenna elements 5 and 6 are arranged completely within the multiple-turn loop NFC antenna element 2.
  • the FM antenna elements 5 and 6 are advantageously also arranged in the same plane as the multiple-turn loop NFC antenna element 2, preferable on a common single-sided flex-film.
  • the multiple-turn loop NFC antenna element 2 is arranged with three sides of the loop above the PCB 1 of the portable radio communication device and the fourth side folded over the top edge of the PCB 1 or a dielectric carrier mounted between the multiple-turn loop NFC antenna element 2 and the PCB 1, and the FM Rx antenna element 5 is thus not arranged along the whole edge of the PCB 1.
  • the minimum distance between the multiple-turn loop NFC antenna element 2 and the FM antenna elements 5 and 6 is preferably 1 mm, to ensure isolation there between.
  • FIG. 4 An antenna arrangement according to a fourth embodiment of the present invention will now be described with reference to Fig. 4 .
  • This fourth embodiment of the present invention is identical to the third embodiment describe above apart from the following.
  • the antenna arrangement comprises an FM Rx antenna element only.
  • the multiple-turn loop NFC antenna element 2 is arranged with one side of the loop above the PCB 1 of the portable radio communication device and the three other sides outside the PCB 1, and at least the Rx FM antenna elements 7 is arranged along the whole edge of the PCB 1.
  • the three other sides of the multiple loop antenna element 2 are folded over the top edge and two adjacent side edges of the PCB 1 or a dielectric carrier mounted between the PCB 1 and the multiple loop antenna element 2.
  • a further Tx FM antenna element may however be added to the antenna device similarly to the first to third embodiments described above.
  • the routing of the multiple-turn loop NFC antenna element 2 is in this embodiment partly outside the side edges of the PCB 1 and partly above the side edges of the PCB 1.
  • the antenna arrangement comprises a dielectric carrier 8 arranged between the PCB 1 and the antenna elements 2 and 7.
  • the dielectric carrier 8 illustrated in this embodiment may also be utilized in the first to fourth embodiments described above.
  • the routing of the multiple-turn loop NFC antenna element 2 on the top side of the portable radio communication device is along a top side of the dielectric carrier 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
EP11156253A 2011-02-28 2011-02-28 Agencement d'antenne et dispositif de communication radio portable comportant un tel agencement d'antenne Withdrawn EP2493010A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP11156253A EP2493010A1 (fr) 2011-02-28 2011-02-28 Agencement d'antenne et dispositif de communication radio portable comportant un tel agencement d'antenne
CN2012100498253A CN102655263A (zh) 2011-02-28 2012-02-28 天线布置及包含这种天线布置的便携式无线电通信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11156253A EP2493010A1 (fr) 2011-02-28 2011-02-28 Agencement d'antenne et dispositif de communication radio portable comportant un tel agencement d'antenne

Publications (1)

Publication Number Publication Date
EP2493010A1 true EP2493010A1 (fr) 2012-08-29

Family

ID=44063204

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11156253A Withdrawn EP2493010A1 (fr) 2011-02-28 2011-02-28 Agencement d'antenne et dispositif de communication radio portable comportant un tel agencement d'antenne

Country Status (2)

Country Link
EP (1) EP2493010A1 (fr)
CN (1) CN102655263A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105305081A (zh) * 2015-12-10 2016-02-03 歌尔声学股份有限公司 天线装置和移动终端
CN205921090U (zh) * 2016-07-04 2017-02-01 中兴通讯股份有限公司 Fm天线组件和终端

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760747A (en) * 1996-03-04 1998-06-02 Motorola, Inc. Energy diversity antenna
US20080081631A1 (en) * 2006-09-29 2008-04-03 Ahmadreza Rofougaran Method And System For Integrating An NFC Antenna And A BT/WLAN Antenna
EP2221914A1 (fr) * 2009-02-10 2010-08-25 Laird Technologies AB Antenne, système d'antenne et dispositif de communication radio portable comportant un tel système d'antenne

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760747A (en) * 1996-03-04 1998-06-02 Motorola, Inc. Energy diversity antenna
US20080081631A1 (en) * 2006-09-29 2008-04-03 Ahmadreza Rofougaran Method And System For Integrating An NFC Antenna And A BT/WLAN Antenna
EP2221914A1 (fr) * 2009-02-10 2010-08-25 Laird Technologies AB Antenne, système d'antenne et dispositif de communication radio portable comportant un tel système d'antenne

Also Published As

Publication number Publication date
CN102655263A (zh) 2012-09-05

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