GB2296603B - Retractable top load antenna - Google Patents

Retractable top load antenna

Info

Publication number
GB2296603B
GB2296603B GB9426229A GB9426229A GB2296603B GB 2296603 B GB2296603 B GB 2296603B GB 9426229 A GB9426229 A GB 9426229A GB 9426229 A GB9426229 A GB 9426229A GB 2296603 B GB2296603 B GB 2296603B
Authority
GB
United Kingdom
Prior art keywords
top load
retractable top
load antenna
antenna
retractable
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.)
Expired - Fee Related
Application number
GB9426229A
Other versions
GB2296603A (en
GB9426229D0 (en
Inventor
Brian James Davidson
Stephen Goodwin
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
Priority to GB9426229A priority Critical patent/GB2296603B/en
Publication of GB9426229D0 publication Critical patent/GB9426229D0/en
Priority to EP19950308453 priority patent/EP0718909B1/en
Priority to DE69531442T priority patent/DE69531442T2/en
Priority to JP33446095A priority patent/JPH08237013A/en
Publication of GB2296603A publication Critical patent/GB2296603A/en
Priority to US08/892,017 priority patent/US6008765A/en
Application granted granted Critical
Publication of GB2296603B publication Critical patent/GB2296603B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
GB9426229A 1994-12-23 1994-12-23 Retractable top load antenna Expired - Fee Related GB2296603B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB9426229A GB2296603B (en) 1994-12-23 1994-12-23 Retractable top load antenna
EP19950308453 EP0718909B1 (en) 1994-12-23 1995-11-24 Retractable top load antenna
DE69531442T DE69531442T2 (en) 1994-12-23 1995-11-24 Retractable antenna with a load at the top
JP33446095A JPH08237013A (en) 1994-12-23 1995-12-22 Lead-in type apex load antenna
US08/892,017 US6008765A (en) 1994-12-23 1997-07-14 Retractable top load antenna

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB9426229D0 GB9426229D0 (en) 1995-02-22
GB2296603A GB2296603A (en) 1996-07-03
GB2296603B true GB2296603B (en) 1999-02-17

Family

ID=10766593

Family Applications (1)

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

Country Status (4)

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

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 (en) * 1995-12-28 1997-12-17 日本電気株式会社 Antenna for portable radio
SE509641C2 (en) * 1996-05-03 1999-02-15 Allgon Ab An antenna device provided with a matching device
US5706019A (en) * 1996-06-19 1998-01-06 Motorola, Inc. Integral antenna assembly for a radio and method of manufacturing
JPH1032410A (en) * 1996-07-12 1998-02-03 Saitama Nippon Denki Kk Antenna for portable radio equipment
FI113214B (en) * 1997-01-24 2004-03-15 Filtronic Lk Oy Simple dual frequency antenna
DE19715726C2 (en) * 1997-04-15 2001-08-30 Siemens Ag Antenna device for mobile radio devices
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 (en) * 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
WO1992016980A1 (en) * 1991-03-19 1992-10-01 Dancall Radio A/S An antenna construction with an extensible antenna element
GB2275369A (en) * 1993-02-19 1994-08-24 Matsushita Electric Ind Co Ltd Retractable antenna device
EP0613207A1 (en) * 1993-02-26 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
GB2257835B (en) * 1991-07-13 1995-10-11 Technophone Ltd Retractable antenna
AU673037B2 (en) * 1993-02-25 1996-10-24 Anten Corporation Antenna for a radio communication apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992016980A1 (en) * 1991-03-19 1992-10-01 Dancall Radio A/S An antenna construction with an extensible antenna element
GB2275369A (en) * 1993-02-19 1994-08-24 Matsushita Electric Ind Co Ltd Retractable antenna device
EP0613207A1 (en) * 1993-02-26 1994-08-31 Nec Corporation Antenna for a radio communication apparatus

Also Published As

Publication number Publication date
DE69531442T2 (en) 2004-06-24
EP0718909B1 (en) 2003-08-06
GB2296603A (en) 1996-07-03
DE69531442D1 (en) 2003-09-11
JPH08237013A (en) 1996-09-13
EP0718909A2 (en) 1996-06-26
EP0718909A3 (en) 1996-08-07
GB9426229D0 (en) 1995-02-22

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20111223