AU720873B2 - An antenna - Google Patents

An antenna Download PDF

Info

Publication number
AU720873B2
AU720873B2 AU13919/97A AU1391997A AU720873B2 AU 720873 B2 AU720873 B2 AU 720873B2 AU 13919/97 A AU13919/97 A AU 13919/97A AU 1391997 A AU1391997 A AU 1391997A AU 720873 B2 AU720873 B2 AU 720873B2
Authority
AU
Australia
Prior art keywords
antenna
core
central axis
elements
antenna according
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.)
Ceased
Application number
AU13919/97A
Other languages
English (en)
Other versions
AU1391997A (en
Inventor
Oliver Paul Leisten
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.)
Sarantel Ltd
Original Assignee
Symmetricom Inc
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 claimed from GBGB9601250.5A external-priority patent/GB9601250D0/en
Application filed by Symmetricom Inc filed Critical Symmetricom Inc
Publication of AU1391997A publication Critical patent/AU1391997A/en
Application granted granted Critical
Publication of AU720873B2 publication Critical patent/AU720873B2/en
Assigned to SARANTEL LIMITED reassignment SARANTEL LIMITED Alteration of Name(s) in Register under S187 Assignors: SYMMETRICOM, INC.
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Telephone Set Structure (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Burglar Alarm Systems (AREA)
  • Waveguide Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Aerials With Secondary Devices (AREA)
AU13919/97A 1996-01-23 1997-01-10 An antenna Ceased AU720873B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9601250.5A GB9601250D0 (en) 1996-01-23 1996-01-23 An antenna
GB9601250 1996-01-23
GB9610581A GB2309592B (en) 1996-01-23 1996-05-21 An Antenna
GB9610581 1996-05-21
PCT/GB1997/000085 WO1997027642A1 (en) 1996-01-23 1997-01-10 ANTENNA FOR FREQUENCIES IN EXCESS OF 200 MHz

Publications (2)

Publication Number Publication Date
AU1391997A AU1391997A (en) 1997-08-20
AU720873B2 true AU720873B2 (en) 2000-06-15

Family

ID=26308506

Family Applications (1)

Application Number Title Priority Date Filing Date
AU13919/97A Ceased AU720873B2 (en) 1996-01-23 1997-01-10 An antenna

Country Status (8)

Country Link
EP (1) EP0876688B1 (de)
JP (1) JP4467642B2 (de)
CN (1) CN1099721C (de)
AT (1) ATE242550T1 (de)
AU (1) AU720873B2 (de)
CA (1) CA2245882C (de)
DE (1) DE69722590T2 (de)
WO (1) WO1997027642A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9813002D0 (en) * 1998-06-16 1998-08-12 Symmetricom Inc An antenna
GB9828768D0 (en) * 1998-12-29 1999-02-17 Symmetricom Inc An antenna
GB9902765D0 (en) * 1999-02-08 1999-03-31 Symmetricom Inc An antenna
DE19923524C1 (de) * 1999-05-21 2001-04-19 Siemens Ag Verfahren zur Herstellung einer Antenne für Sende-/Empfangseinrichtungen
GB9912441D0 (en) * 1999-05-27 1999-07-28 Symmetricon Inc An antenna
GB2420230B (en) * 2004-11-11 2009-06-03 Sarantel Ltd A dielectrically-loaded antenna
GB2444749B (en) * 2006-12-14 2009-11-18 Sarantel Ltd A radio communication system
KR100821981B1 (ko) * 2007-02-02 2008-04-15 이성철 무지향성 안테나
DE102013201685B4 (de) 2013-02-01 2019-04-04 Siemens Healthcare Gmbh Leiteranordnung mit dielektrischer Mantelwellensperre
CN115693106A (zh) * 2022-11-10 2023-02-03 星启空间(南通)通信设备有限公司 一种卫星及星载天线

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442438A (en) * 1982-03-29 1984-04-10 Motorola, Inc. Helical antenna structure capable of resonating at two different frequencies
EP0521511A2 (de) * 1991-07-05 1993-01-07 Sharp Kabushiki Kaisha Wendelantenne mit Reflektor
WO1996006468A1 (en) * 1994-08-25 1996-02-29 SYMMETRICOM,Inc. An antenna

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708445A (en) * 1993-01-29 1998-01-13 Motorola, Inc. Antenna assembly for radio circuit and method therefor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442438A (en) * 1982-03-29 1984-04-10 Motorola, Inc. Helical antenna structure capable of resonating at two different frequencies
EP0521511A2 (de) * 1991-07-05 1993-01-07 Sharp Kabushiki Kaisha Wendelantenne mit Reflektor
WO1996006468A1 (en) * 1994-08-25 1996-02-29 SYMMETRICOM,Inc. An antenna

Also Published As

Publication number Publication date
WO1997027642A1 (en) 1997-07-31
EP0876688A1 (de) 1998-11-11
CA2245882C (en) 2004-11-09
CN1214151A (zh) 1999-04-14
CA2245882A1 (en) 1997-07-31
EP0876688B1 (de) 2003-06-04
ATE242550T1 (de) 2003-06-15
AU1391997A (en) 1997-08-20
JP2000506690A (ja) 2000-05-30
JP4467642B2 (ja) 2010-05-26
DE69722590D1 (de) 2003-07-10
CN1099721C (zh) 2003-01-22
DE69722590T2 (de) 2004-05-06

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Legal Events

Date Code Title Description
FGA Letters patent sealed or granted (standard patent)
PC Assignment registered

Owner name: SARANTEL LIMITED

Free format text: FORMER OWNER WAS: SYMMETRICOM, INC.