WO2010033071A1 - Dispositif d’antenne et dispositif de radiocommunication portable comprenant un tel dispositif d’antenne - Google Patents

Dispositif d’antenne et dispositif de radiocommunication portable comprenant un tel dispositif d’antenne Download PDF

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Publication number
WO2010033071A1
WO2010033071A1 PCT/SE2009/051031 SE2009051031W WO2010033071A1 WO 2010033071 A1 WO2010033071 A1 WO 2010033071A1 SE 2009051031 W SE2009051031 W SE 2009051031W WO 2010033071 A1 WO2010033071 A1 WO 2010033071A1
Authority
WO
WIPO (PCT)
Prior art keywords
radiating element
filtering means
antenna device
elongated radiating
elongated
Prior art date
Application number
PCT/SE2009/051031
Other languages
English (en)
Inventor
Andrei Kaikkonen
Peter Lindberg
Mattias Südow
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 CN2009801359856A priority Critical patent/CN102160234A/zh
Publication of WO2010033071A1 publication Critical patent/WO2010033071A1/fr

Links

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
    • H01Q9/0407—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
    • 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
    • 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
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
    • 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

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 application of internal antennas in a mobile phone puts some constraints on the configuration of the antenna element.
  • the space for an internal antenna device is limited. These constraints may make it difficult to find a configuration of the antenna device that provides for desired use. This is especially true for antennas intended for use with radio signals of relatively low frequencies as the desired physical length of such antennas are large compared to antennas operating with relatively high frequencies.
  • One specific application operating in a relatively low frequency band is the FM radio application.
  • the FM operating band 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 at least FM frequency band operation.
  • 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, wherein the first end of the first elongated radiating element is configured for connection to a GPS receiver and to a BT transceiver, 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 second end of the second elongated radiating element is configured for grounding, and the first radiating element is configured for connection to a FM transceiver close to the first end of the first elongated radiating element, and the filtering means is configured to pass FM and GPS operating frequencies and to stop BT operating frequencies, an antenna device enabling simultaneous FM, GPS and BT operation is provided, which antenna device efficiently utilizes available space, since GPS and
  • 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 IFA antenna.
  • the second filtering means By preferably providing the second filtering means as a capacitor, a simple, low cost and efficient filtering means is achieved.
  • the third filtering means as a capacitor, a simple, low cost and efficient FM tuning is achieved, at the same time efficiently working as a BT and GPS grounding.
  • the antenna device is based on the operation requiring most space.
  • BT operation can be configured without much interference for FM and GPS configuration.
  • GPS operation can be configured without much interference for BT and FM configuration.
  • the length between the first end of the first radiating element and the connection to the FM transceiver is preferably also for configuration for GPS receiver and BT transceiver matching.
  • a portable radio communication device comprising an antenna device as described above is also provided.
  • FIG. 1 is a schematic diagram showing a first embodiment of an antenna device according to the present invention.
  • FIG. 2 is a perspective partially cut-away view of an antenna device according to the present invention mounted in a portable radio communication device.
  • FIG. 3 is a schematic diagram showing a second embodiment of an antenna device of the present invention.
  • 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 comprises a first elongated radiating element 1, having a first end 2 and a second end 3, and a second radiating element 4, having a first end 5 and a second end 6.
  • the antenna device further comprises first filter means 7 connected between the second end 3 of the first elongated radiating element 1 and the first end 5 of the second elongated radiating element 4.
  • the first end 2 of the first elongated radiating element 1 is connected to second filtering means 12, which in turn is connected to a GPS (Global Positioning System) receiver 9 and a BT (Bluetooth) transceiver 10.
  • the second end 6 of the second elongated radiating element 4 is connected to ground.
  • a FM transceiver 11 is connected to a point 8 of the first elongated radiating element 1 close to the first end 2 thereof.
  • the connection point 8 is further connected to ground through third filtering means 13.
  • the first and second elongated radiating elements 1 and 4 together have a length 14 configured for FM operation and GPS tuning, about 90 mm.
  • the first elongated radiating element 1 have a length 15 configured for BT operation, about 40 mm.
  • the length 16 between the connection point 8 and the first end 2 of the first elongated radiating element 1 is configured for matching of the GPS receiver 9 and the BT transceiver 10, about 10 mm.
  • the exemplary lengths given above are dependent on e.g. distance above a ground plane device 17, in this case based on the distance of about 7 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 20.
  • the dielectric carrier is e.g. a portion of the middle deck the portable radio communication device 20.
  • the first and second radiating elements are alternatively e.g. self-supported.
  • the first filtering means 7 is preferably provided as an RF choke of about 20 nH, but cold alternatively be provided as parallel resonant circuit.
  • the first filtering means 7 is in such a way configured to pass FM and GPS operation and to stop BT operation.
  • the second filtering means 12 is preferably provided as a capacitor of about 1 pF.
  • the second filtering means 12 is in such a way configured to pass BT and GPS operation and to stop FM operation.
  • the third filtering means 13 is preferably provided as a capacitor of about 30 pF.
  • the third filtering means 13 is in such a way configured to tune the FM transceiver 11 and to ground BT and GPS operation.
  • the antenna device is in such a way configured to simultaneously with FM frequencies operate at BT and GPS frequencies.
  • the antenna device preferably 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 17.
  • the antenna device effectively forms an IFA antenna for BT operation, and effectively utilizes the first and second elongated radiating elements for GPS 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 antenna device comprises a BT/GPS duplex filter

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Position Fixing By Use Of Radio Waves (AREA)

Abstract

Cette invention concerne un dispositif d’antenne destiné à un dispositif de radiocommunication portable conçu pour fonctionner simultanément en mode FM, BT (Blue Tooth)et GPS. Le dispositif d’antenne comprend un premier élément radiant de forme allongée (1) présentant une première extrémité (2) et une seconde extrémité (3), un second élément radiant de forme allongée (4) présentant une première extrémité (5) et une seconde extrémité (6), et un moyen de filtrage (7. La première extrémité (2) du premier élément radiant de forme allongée (1) est conçue pour être connectée à un récepteur (9) et à un émetteur-récepteur BT (10) ; la seconde extrémité dudit élément(1) est connectée au moyen de filtrage (7); la première extrémité (5) du second élément radiant de forme allongée (4) est connectée au moyen de filtrage (7) ; la seconde extrémité (6) dudit élément radiant (4) est prévue pour la mise à la terre ; le premier élément radiant de forme allongée (1) est conçu pour être connecté à un émetteur-récepteur FM (11) à proximité de la première extrémité (2) du premier élément ; et le moyen de filtrage (7) est conçu pour laisser passer les fréquences de fonctionnement FM et GPS et pour arrêter les fréquences de fonctionnement BT.
PCT/SE2009/051031 2008-09-17 2009-09-16 Dispositif d’antenne et dispositif de radiocommunication portable comprenant un tel dispositif d’antenne WO2010033071A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009801359856A CN102160234A (zh) 2008-09-17 2009-09-16 天线装置和包括该天线装置的便携式无线电通信装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08164510A EP2166614A1 (fr) 2008-09-17 2008-09-17 Dispositif d'antenne et dispositif de communication radio portable comportant un tel dispositif d'antenne
EP08164510.3 2008-09-17

Publications (1)

Publication Number Publication Date
WO2010033071A1 true WO2010033071A1 (fr) 2010-03-25

Family

ID=40478565

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2009/051031 WO2010033071A1 (fr) 2008-09-17 2009-09-16 Dispositif d’antenne et dispositif de radiocommunication portable comprenant un tel dispositif d’antenne

Country Status (3)

Country Link
EP (1) EP2166614A1 (fr)
CN (1) CN102160234A (fr)
WO (1) WO2010033071A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010005503T5 (de) * 2010-04-23 2013-01-31 Laird Technologies Ab Antennenvorrichtung und tragbare elektronische Vorrichtung, die solch eine Antennvorrichtung aufweist
WO2013099229A2 (fr) 2011-12-30 2013-07-04 Makita Corporation Système de piles pour outil électrique, ainsi que support de piles, chargeur, et système de charge
US9781496B2 (en) 2012-10-25 2017-10-03 Milwaukee Electric Tool Corporation Worksite audio device with wireless interface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060099993A1 (en) * 2004-11-05 2006-05-11 Nokia Corporation Multiple antenna portable hand-held electronic device
EP1906538A2 (fr) * 2006-09-29 2008-04-02 Broadcom Corporation Procédé et système de communication d'informations dans un système à antennes multiples

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6204819B1 (en) * 2000-05-22 2001-03-20 Telefonaktiebolaget L.M. Ericsson Convertible loop/inverted-f antennas and wireless communicators incorporating the same
KR100592209B1 (ko) * 2001-02-26 2006-06-23 닛폰안테나 가부시키가이샤 다주파용 안테나
JP3629448B2 (ja) * 2001-07-27 2005-03-16 Ｔｄｋ株式会社 アンテナ装置及びそれを備えた電子機器
JP2004040596A (ja) * 2002-07-05 2004-02-05 Matsushita Electric Ind Co Ltd 携帯無線機用多周波アンテナ
CN1714471A (zh) * 2002-11-18 2005-12-28 株式会社友华 多频段用天线
JP3889423B2 (ja) * 2004-12-16 2007-03-07 松下電器産業株式会社 偏波切り替えアンテナ装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060099993A1 (en) * 2004-11-05 2006-05-11 Nokia Corporation Multiple antenna portable hand-held electronic device
EP1906538A2 (fr) * 2006-09-29 2008-04-02 Broadcom Corporation Procédé et système de communication d'informations dans un système à antennes multiples

Also Published As

Publication number Publication date
CN102160234A (zh) 2011-08-17
EP2166614A1 (fr) 2010-03-24

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