DK0509339T3 - Antenna with top capacity for mobile phones - Google Patents

Antenna with top capacity for mobile phones

Info

Publication number
DK0509339T3
DK0509339T3 DK92105739.4T DK92105739T DK0509339T3 DK 0509339 T3 DK0509339 T3 DK 0509339T3 DK 92105739 T DK92105739 T DK 92105739T DK 0509339 T3 DK0509339 T3 DK 0509339T3
Authority
DK
Denmark
Prior art keywords
antenna
loading capacity
capacity
mobile phones
autotransformer
Prior art date
Application number
DK92105739.4T
Other languages
Danish (da)
Inventor
Heinrich Fluegel
Christoph Petermann
Original Assignee
Hagenuk Telecom Gmbh
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 Hagenuk Telecom Gmbh filed Critical Hagenuk Telecom Gmbh
Application granted granted Critical
Publication of DK0509339T3 publication Critical patent/DK0509339T3/en

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
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/36—Vertical arrangement of element with top loading

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Telephone Set Structure (AREA)

Abstract

The invention relates to an antenna with top-loading capacity (2), especially for a short linear antenna, for radio telephones, especially handsets, conforming to the GSM Standard. At the base point (4), the antenna has an elongation coil (3) and, for matching, an autotransformer. The top-loading capacity is formed by a metallised film which is bent approximately in a U-shape in order to increase the capacity. The complete circuit, consisting of the top-loading capacity, the elongation coil and autotransformer, is advantageously configured on a film, as a printed circuit. The antenna counterweight (1) is configured as a wave trap, especially as a part of the housing of the transmitting/receiving apparatus. <IMAGE>
DK92105739.4T 1991-04-19 1992-04-03 Antenna with top capacity for mobile phones DK0509339T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4113277A DE4113277C2 (en) 1991-04-19 1991-04-19 Antenna for a mobile phone

Publications (1)

Publication Number Publication Date
DK0509339T3 true DK0509339T3 (en) 1995-07-10

Family

ID=6430199

Family Applications (1)

Application Number Title Priority Date Filing Date
DK92105739.4T DK0509339T3 (en) 1991-04-19 1992-04-03 Antenna with top capacity for mobile phones

Country Status (5)

Country Link
EP (1) EP0509339B1 (en)
AT (1) ATE119319T1 (en)
DE (2) DE4113277C2 (en)
DK (1) DK0509339T3 (en)
ES (1) ES2072042T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100193851B1 (en) * 1996-11-05 1999-06-15 윤종용 Small antenna of portable radio
DE19707535A1 (en) * 1997-02-25 1998-08-27 Rothe Lutz Dr Ing Habil Foil emitter
GB2323476B (en) * 1997-03-20 2002-01-16 David Ganeshmoorthy Communication antenna and equipment
SE9804498D0 (en) 1998-04-02 1998-12-22 Allgon Ab Wide band antenna means incorporating a radiating structure having a band shape
JP2000077923A (en) * 1998-09-01 2000-03-14 Nippon Antenna Co Ltd On-vehicle antenna
SE513469C2 (en) * 1998-11-13 2000-09-18 Allgon Ab An adapted antenna device and a portable radio communication device comprising an adapted antenna device
SE522492C2 (en) * 2000-10-27 2004-02-10 Ericsson Telefon Ab L M Antenna device for a mobile terminal
KR100442453B1 (en) * 2001-10-31 2004-07-30 김영준 nX Antenna for wireless communication

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1153870A (en) * 1966-06-09 1969-05-29 Walter Karl Volkers Improvements in or relating to Antennas
BE792553A (en) * 1971-12-22 1973-06-12 Lannionnais Electronique LOW DIMENSIONAL RADIOELECTRIC ANTENNA
GB2066580A (en) * 1979-12-22 1981-07-08 Polytechnic Marine Ltd Antenna
US4328501A (en) * 1980-04-23 1982-05-04 The United States Of America As Represented By The Secretary Of The Army Small broadband antennas using lossy matching networks
FR2498819B1 (en) * 1981-01-23 1985-05-31 Thomson Csf SMALL ANTENNA
JPH01321738A (en) * 1988-06-24 1989-12-27 Nec Corp Protection case for portable radio telephone equipment
US4876709A (en) * 1988-09-08 1989-10-24 Dynascan Corporation Antenna for cordless telephone system

Also Published As

Publication number Publication date
DE4113277A1 (en) 1992-10-22
ATE119319T1 (en) 1995-03-15
EP0509339A1 (en) 1992-10-21
DE4113277C2 (en) 1996-08-08
DE59201497D1 (en) 1995-04-06
ES2072042T3 (en) 1995-07-01
EP0509339B1 (en) 1995-03-01

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