DE69030240D1 - Antenna with curved dipole elements - Google Patents

Antenna with curved dipole elements

Info

Publication number
DE69030240D1
DE69030240D1 DE69030240T DE69030240T DE69030240D1 DE 69030240 D1 DE69030240 D1 DE 69030240D1 DE 69030240 T DE69030240 T DE 69030240T DE 69030240 T DE69030240 T DE 69030240T DE 69030240 D1 DE69030240 D1 DE 69030240D1
Authority
DE
Germany
Prior art keywords
ground plane
mast
antenna
dipole elements
base plate
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 - Lifetime
Application number
DE69030240T
Other languages
German (de)
Inventor
Eric B Rodal
Michael C Detro
David R Gildea
James M Janky
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.)
Trimble Inc
Original Assignee
Trimble Navigation 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 Trimble Navigation Ltd filed Critical Trimble Navigation Ltd
Application granted granted Critical
Publication of DE69030240D1 publication Critical patent/DE69030240D1/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
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
    • H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

An antenna comprises a base plate (20) forming a ground plane, a coaxial feed serving as a mast (22) connected to the base plate (20) and extending along an axis that is normal to the ground plane, and two orthogonal dipoles (24, 26) each formed of two elements. Each dipole element has a first end connected to and supported by the mast at a first location spaced apart from the ground plane by a predetermined distance and a second end closer to the ground plane and exhibits a curvature in a plane containing the mast. <IMAGE>
DE69030240T 1989-12-04 1990-11-12 Antenna with curved dipole elements Expired - Lifetime DE69030240D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44575489A 1989-12-04 1989-12-04

Publications (1)

Publication Number Publication Date
DE69030240D1 true DE69030240D1 (en) 1997-04-24

Family

ID=23770079

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69030240T Expired - Lifetime DE69030240D1 (en) 1989-12-04 1990-11-12 Antenna with curved dipole elements

Country Status (6)

Country Link
EP (1) EP0431764B1 (en)
JP (1) JP3045767B2 (en)
KR (1) KR910013614A (en)
AT (1) ATE150588T1 (en)
CA (1) CA2026148C (en)
DE (1) DE69030240D1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2675973B2 (en) * 1994-03-14 1997-11-12 八木アンテナ株式会社 Indoor antenna
DE19823749C2 (en) * 1998-05-27 2002-07-11 Kathrein Werke Kg Dual polarized multi-range antenna
JP4108275B2 (en) * 1999-05-07 2008-06-25 古野電気株式会社 Circularly polarized antenna
ES2241378T3 (en) 1999-09-20 2005-10-16 Fractus, S.A. MULTI LEVEL ANTENNAS.
DE10012809A1 (en) 2000-03-16 2001-09-27 Kathrein Werke Kg Dual polarized dipole array antenna has supply cable fed to supply point on one of two opposing parallel dipoles, connecting cable to supply point on opposing dipole
NZ504042A (en) * 2000-04-14 2002-12-20 Gregory Daniel Hall A wide-band high-gain plate dipole antenna using a pair of plate elements arranged in the same plane
DE10064129B4 (en) 2000-12-21 2006-04-20 Kathrein-Werke Kg Antenna, in particular mobile radio antenna
DE10150150B4 (en) 2001-10-11 2006-10-05 Kathrein-Werke Kg Dual polarized antenna array
JP5024826B2 (en) * 2006-08-24 2012-09-12 株式会社日立国際電気 Antenna device
KR101129997B1 (en) 2006-08-24 2012-03-26 야기안테나 가부시기가이샤 Antenna device
ITBO20070100A1 (en) * 2007-02-21 2008-08-22 Clarbruno Vedruccio OMINIDIRECTIONAL ANTENNA WITH CIRCULAR POLARIZATION
US9099781B2 (en) 2012-12-05 2015-08-04 Qualcomm Incorporated Compact dual polarization antenna
US9548526B2 (en) * 2012-12-21 2017-01-17 Htc Corporation Small-size antenna system with adjustable polarization
US20200303820A1 (en) * 2019-03-19 2020-09-24 Wilson Electronics, Llc Antenna with parasitic elements
CN114256606B (en) * 2021-12-21 2024-03-29 上海海积信息科技股份有限公司 Antenna

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3811127A (en) * 1972-08-10 1974-05-14 Collins Radio Co Antenna for airborne satellite communications
US4878062A (en) * 1988-07-28 1989-10-31 Dayton-Granger, Inc. Global position satellite antenna

Also Published As

Publication number Publication date
JP3045767B2 (en) 2000-05-29
EP0431764A3 (en) 1991-11-13
EP0431764B1 (en) 1997-03-19
KR910013614A (en) 1991-08-08
CA2026148A1 (en) 1991-06-05
ATE150588T1 (en) 1997-04-15
EP0431764A2 (en) 1991-06-12
JPH03231503A (en) 1991-10-15
CA2026148C (en) 2001-01-16

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Legal Events

Date Code Title Description
8332 No legal effect for de