EP1154513A4 - Built-in antenna of wireless communication terminal - Google Patents

Built-in antenna of wireless communication terminal

Info

Publication number
EP1154513A4
EP1154513A4 EP00939108A EP00939108A EP1154513A4 EP 1154513 A4 EP1154513 A4 EP 1154513A4 EP 00939108 A EP00939108 A EP 00939108A EP 00939108 A EP00939108 A EP 00939108A EP 1154513 A4 EP1154513 A4 EP 1154513A4
Authority
EP
European Patent Office
Prior art keywords
antenna
wireless communication
communication terminal
built
balanced
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Withdrawn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
EP00939108A
Other languages
German (de)
French (fr)
Other versions
EP1154513A1 (en
Inventor
Hideo Ito
Kiyoshi Egawa
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.)
Panasonic Corp
Original Assignee
Panasonic Corp
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
Priority to JP36828499A priority Critical patent/JP2000244219A/en
Priority to JP36828499 priority
Priority to JP2000056476 priority
Priority to JP2000056476 priority
Priority to JP2000118692 priority
Priority to JP2000118692 priority
Application filed by Panasonic Corp filed Critical Panasonic Corp
Priority to PCT/JP2000/004044 priority patent/WO2001048860A1/en
Publication of EP1154513A1 publication Critical patent/EP1154513A1/en
Publication of EP1154513A4 publication Critical patent/EP1154513A4/en
Application status is Withdrawn legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01Q1/244Supports; 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 extendable from a housing along a given path
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00Antenna arrays or systems
    • H01Q21/28Combinations of substantially independent non-interacting antenna units or systems
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • HELECTRICITY
    • H01BASIC ELECTRIC 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
    • H01BASIC ELECTRIC 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
    • H01Q9/16Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • HELECTRICITY
    • H01BASIC ELECTRIC 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

Abstract

A dipole antenna (12) is composed of a meandering antenna element, which extends perpendicularly to the upper (horizontal) surface of a wireless communication terminal. The signal received at the dipole antenna (12) is sent to a transmitting and receiving circuit through a balanced-to-unbalanced transformer (13). The balanced-to-unbalanced transformer (13) minimizes the current flowing to a ground plane (11), thus preventing the ground plane (11) from acting as an antenna.
EP00939108A 1998-12-25 2000-06-21 Built-in antenna of wireless communication terminal Withdrawn EP1154513A4 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP36828499A JP2000244219A (en) 1998-12-25 1999-12-24 Incorporated antenna for radio communication terminal
JP36828499 1999-12-24
JP2000056476 2000-03-01
JP2000056476 2000-03-01
JP2000118692 2000-04-19
JP2000118692 2000-04-19
PCT/JP2000/004044 WO2001048860A1 (en) 1999-12-24 2000-06-21 Built-in antenna of wireless communication terminal

Publications (2)

Publication Number Publication Date
EP1154513A1 EP1154513A1 (en) 2001-11-14
EP1154513A4 true EP1154513A4 (en) 2002-07-24

Family

ID=27341772

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00939108A Withdrawn EP1154513A4 (en) 1998-12-25 2000-06-21 Built-in antenna of wireless communication terminal

Country Status (4)

Country Link
EP (1) EP1154513A4 (en)
CN (1) CN1345473A (en)
AU (1) AU5428200A (en)
WO (1) WO2001048860A1 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR0017065A (en) 2000-01-19 2003-11-04 Fractus Sa Space Filling Antenna and Antenna Set
WO2002019465A1 (en) 2000-08-31 2002-03-07 Matsushita Electric Industrial Co., Ltd. Built-in antenna for radio communication terminal
JP2003110329A (en) 2001-07-25 2003-04-11 Matsushita Electric Ind Co Ltd Built-in antenna device
JP3608735B2 (en) * 2002-02-15 2005-01-12 松下電器産業株式会社 Antenna device and portable radio device
JP2003258523A (en) 2002-02-27 2003-09-12 Matsushita Electric Ind Co Ltd Antenna system for wireless apparatus
JP2003332825A (en) * 2002-05-13 2003-11-21 Alps Electric Co Ltd Antenna module
EP1432068A3 (en) * 2002-12-19 2014-03-26 Kabushiki Kaisha Toshiba Wireless communication apparatus including antenna
ITRE20030073A1 (en) * 2003-07-18 2005-01-19 Ask Ind Spa single layer planar antenna.
GB0501938D0 (en) * 2005-02-01 2005-03-09 Antenova Ltd Balanced-unbalanced antennas for cellular radio handsets, PDAs etc
US7199760B2 (en) * 2005-02-03 2007-04-03 Via Telecom Co., Ltd. Mobile phone having a directed beam antenna
CN101051705B (en) 2006-04-04 2011-06-29 黄启芳 Crushed shape antenna
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
JP5149232B2 (en) 2009-03-31 2013-02-20 株式会社日本自動車部品総合研究所 Antenna device
CN101707281A (en) * 2009-11-17 2010-05-12 中兴通讯股份有限公司 Mobile terminal and diversity antenna thereof
GB2484542B (en) 2010-10-15 2015-04-29 Microsoft Technology Licensing Llc LTE antenna pair for mimo/diversity operation in the LTE/GSM bands
CN102544761A (en) * 2010-12-22 2012-07-04 和硕联合科技股份有限公司 Electronic device
US20140062812A1 (en) * 2012-08-30 2014-03-06 Cambridge Silicon Radio Limited Multi-antenna isolation
GB2529885B (en) * 2014-09-05 2017-10-04 Smart Antenna Tech Ltd Multiple antenna system arranged in the periphery of a device casing
JP6271480B2 (en) 2015-08-26 2018-01-31 株式会社東芝 Communication device, smart meter
CN205564972U (en) * 2016-02-25 2016-09-07 中磊电子(苏州)有限公司 Vertical type communication device
WO2019216672A1 (en) * 2018-05-11 2019-11-14 주식회사 아이뷰 Small dipole antenna

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60240201A (en) * 1984-05-15 1985-11-29 Matsushita Electric Works Ltd Portable radio equipment
EP0218843A2 (en) * 1985-10-16 1987-04-22 Robert Bosch Gmbh Diversity antenna for mobile radio devices
JPH07142921A (en) * 1993-11-15 1995-06-02 Matsushita Electric Ind Co Ltd Antenna with built-in wireless microphone
GB2320816A (en) * 1996-08-30 1998-07-01 Matsushita Electric Ind Co Ltd Antenna system
EP0933832A2 (en) * 1998-01-30 1999-08-04 Matsushita Electric Industrial Co., Ltd. Built-in antenna for radio communication terminals
WO2000035048A1 (en) * 1998-12-07 2000-06-15 Qualcomm Incorporated Balanced dipole antenna for mobile phones

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60240201A (en) * 1984-05-15 1985-11-29 Matsushita Electric Works Ltd Portable radio equipment
EP0218843A2 (en) * 1985-10-16 1987-04-22 Robert Bosch Gmbh Diversity antenna for mobile radio devices
JPH07142921A (en) * 1993-11-15 1995-06-02 Matsushita Electric Ind Co Ltd Antenna with built-in wireless microphone
GB2320816A (en) * 1996-08-30 1998-07-01 Matsushita Electric Ind Co Ltd Antenna system
EP0933832A2 (en) * 1998-01-30 1999-08-04 Matsushita Electric Industrial Co., Ltd. Built-in antenna for radio communication terminals
WO2000035048A1 (en) * 1998-12-07 2000-06-15 Qualcomm Incorporated Balanced dipole antenna for mobile phones

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 099 (E - 396) 16 April 1986 (1986-04-16) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 09 31 October 1995 (1995-10-31) *
See also references of WO0148860A1 *

Also Published As

Publication number Publication date
EP1154513A1 (en) 2001-11-14
WO2001048860A1 (en) 2001-07-05
CN1345473A (en) 2002-04-17
AU5428200A (en) 2001-07-09

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