EP0718909A3 - - Google Patents

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Publication number
EP0718909A3
EP0718909A3 EP95308453A EP95308453A EP0718909A3 EP 0718909 A3 EP0718909 A3 EP 0718909A3 EP 95308453 A EP95308453 A EP 95308453A EP 95308453 A EP95308453 A EP 95308453A EP 0718909 A3 EP0718909 A3 EP 0718909A3
Authority
EP
European Patent Office
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.)
Granted
Application number
EP95308453A
Other languages
English (en)
Other versions
EP0718909B1 (en
EP0718909A2 (en
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.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of EP0718909A2 publication Critical patent/EP0718909A2/en
Publication of EP0718909A3 publication Critical patent/EP0718909A3/en
Application granted granted Critical
Publication of EP0718909B1 publication Critical patent/EP0718909B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • 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
    • H01Q1/244—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 extendable from a housing along a given path
    • 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
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Details Of Aerials (AREA)
EP19950308453 1994-12-23 1995-11-24 Retractable top load antenna Expired - Lifetime EP0718909B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9426229A GB2296603B (en) 1994-12-23 1994-12-23 Retractable top load antenna
GB9426229 1994-12-23

Publications (3)

Publication Number Publication Date
EP0718909A2 EP0718909A2 (en) 1996-06-26
EP0718909A3 true EP0718909A3 (pt) 1996-08-07
EP0718909B1 EP0718909B1 (en) 2003-08-06

Family

ID=10766593

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950308453 Expired - Lifetime EP0718909B1 (en) 1994-12-23 1995-11-24 Retractable top load antenna

Country Status (4)

Country Link
EP (1) EP0718909B1 (pt)
JP (1) JPH08237013A (pt)
DE (1) DE69531442T2 (pt)
GB (1) GB2296603B (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5812093A (en) * 1995-09-29 1998-09-22 Motorola, Inc. Antenna assembly for a wireless-communication device
JP2692670B2 (ja) * 1995-12-28 1997-12-17 日本電気株式会社 携帯無線機用アンテナ
SE509641C2 (sv) * 1996-05-03 1999-02-15 Allgon Ab En antennanordning försedd med en matchningsanordning
US5706019A (en) * 1996-06-19 1998-01-06 Motorola, Inc. Integral antenna assembly for a radio and method of manufacturing
JPH1032410A (ja) * 1996-07-12 1998-02-03 Saitama Nippon Denki Kk 携帯無線機用アンテナ
FI113214B (fi) * 1997-01-24 2004-03-15 Filtronic Lk Oy Yksinkertainen kahden taajuuden antenni
DE19715726C2 (de) * 1997-04-15 2001-08-30 Siemens Ag Antennenvorrichtung für Mobilfunkgeräte
US5969683A (en) * 1997-05-20 1999-10-19 Ericsson Inc. Radiotelephones with antenna matching switching system configurations
US5856808A (en) * 1997-09-29 1999-01-05 Ericsson Inc. Single feed point matching systems
US6097934A (en) * 1997-12-31 2000-08-01 Ericsson Inc. Retractable radiotelephone antennas with extended feeds
US6204816B1 (en) 1998-03-20 2001-03-20 Ericsson, Inc. Radio frequency antenna
SE9900412D0 (sv) * 1998-04-01 1999-02-08 Allgon Ab Antenna means, a method for its manufacturing and a hand-held radio communication device
US6336036B1 (en) 1998-07-08 2002-01-01 Ericsson Inc. Retractable dual-band tapped helical radiotelephone antennas
GB2364176A (en) * 2000-06-30 2002-01-16 Nokia Mobile Phones Ltd Multi-mode antenna
EP1478046A1 (en) * 2003-05-12 2004-11-17 Sony International (Europe) GmbH Load structure for an antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516490A2 (en) * 1991-07-13 1992-12-02 Nokia Mobile Phones (U.K.) Limited Retractable antenna
GB2275369A (en) * 1993-02-19 1994-08-24 Matsushita Electric Ind Co Ltd Retractable antenna device
EP0613206A1 (en) * 1993-02-25 1994-08-31 Nec Corporation Antenna for a radio communication apparatus

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4868576A (en) 1988-11-02 1989-09-19 Motorola, Inc. Extendable antenna for portable cellular telephones with ground radiator
DK168346B1 (da) * 1991-03-19 1994-03-14 Dancall Telecom As Antennekonstruktion med udtrækkeligt antenneelement
JP2520557B2 (ja) * 1993-02-26 1996-07-31 日本電気株式会社 無線機用アンテナ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516490A2 (en) * 1991-07-13 1992-12-02 Nokia Mobile Phones (U.K.) Limited Retractable antenna
GB2275369A (en) * 1993-02-19 1994-08-24 Matsushita Electric Ind Co Ltd Retractable antenna device
EP0613206A1 (en) * 1993-02-25 1994-08-31 Nec Corporation Antenna for a radio communication apparatus

Also Published As

Publication number Publication date
GB2296603B (en) 1999-02-17
DE69531442D1 (de) 2003-09-11
GB9426229D0 (en) 1995-02-22
GB2296603A (en) 1996-07-03
EP0718909B1 (en) 2003-08-06
DE69531442T2 (de) 2004-06-24
JPH08237013A (ja) 1996-09-13
EP0718909A2 (en) 1996-06-26

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