AU637633B2 - Antenna with curved dipole elements - Google Patents

Antenna with curved dipole elements

Info

Publication number
AU637633B2
AU637633B2 AU62239/90A AU6223990A AU637633B2 AU 637633 B2 AU637633 B2 AU 637633B2 AU 62239/90 A AU62239/90 A AU 62239/90A AU 6223990 A AU6223990 A AU 6223990A AU 637633 B2 AU637633 B2 AU 637633B2
Authority
AU
Australia
Prior art keywords
antenna
dipole elements
curved dipole
curved
elements
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
AU62239/90A
Other versions
AU6223990A (en
Inventor
Michael Charles Detro
David Robert Gildea
James Martin Janky
Eric Bernard Rodal
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
Priority claimed from US07/445,789 external-priority patent/US5047074A/en
Application filed by Trimble Navigation Ltd filed Critical Trimble Navigation Ltd
Publication of AU6223990A publication Critical patent/AU6223990A/en
Assigned to TRIMBLE NAVIGATION reassignment TRIMBLE NAVIGATION Alteration of Name(s) of Applicant(s) under S113 Assignors: DETRO, MICHAEL C., GILDEA, DAVID R., JANKY, JAMES M., RODAL, ERIC B.
Application granted granted Critical
Publication of AU637633B2 publication Critical patent/AU637633B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
AU62239/90A 1989-12-04 1990-09-06 Antenna with curved dipole elements Ceased AU637633B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/445,789 US5047074A (en) 1989-01-25 1989-12-04 Purging of nitrogen from natural gas
US445754 1989-12-04

Publications (2)

Publication Number Publication Date
AU6223990A AU6223990A (en) 1991-06-06
AU637633B2 true AU637633B2 (en) 1993-06-03

Family

ID=23770200

Family Applications (1)

Application Number Title Priority Date Filing Date
AU62239/90A Ceased AU637633B2 (en) 1989-12-04 1990-09-06 Antenna with curved dipole elements

Country Status (1)

Country Link
AU (1) AU637633B2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU411740B2 (en) * 1965-08-02 1968-01-18 Raytheon Company An antenna
AU618804B2 (en) * 1988-05-06 1992-01-09 Ball Corporation Monopole/l-shaped parasitic elements for circularly/ eliptically polarized wave transceiving

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU411740B2 (en) * 1965-08-02 1968-01-18 Raytheon Company An antenna
AU419600B2 (en) * 1967-07-27 1970-01-29 Monopole antenna
AU618804B2 (en) * 1988-05-06 1992-01-09 Ball Corporation Monopole/l-shaped parasitic elements for circularly/ eliptically polarized wave transceiving

Also Published As

Publication number Publication date
AU6223990A (en) 1991-06-06

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired