CA2197725A1 - The strengthened double-delta antenna structure - Google Patents

The strengthened double-delta antenna structure

Info

Publication number
CA2197725A1
CA2197725A1 CA2197725A CA2197725A CA2197725A1 CA 2197725 A1 CA2197725 A1 CA 2197725A1 CA 2197725 A CA2197725 A CA 2197725A CA 2197725 A CA2197725 A CA 2197725A CA 2197725 A1 CA2197725 A1 CA 2197725A1
Authority
CA
Canada
Prior art keywords
improvement
antenna structure
centre
sides
triangle
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.)
Granted
Application number
CA2197725A
Other languages
French (fr)
Other versions
CA2197725C (en
Inventor
James Stanley Podger
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA002197725A priority Critical patent/CA2197725C/en
Priority to US08/806,453 priority patent/US5995060A/en
Publication of CA2197725A1 publication Critical patent/CA2197725A1/en
Application granted granted Critical
Publication of CA2197725C publication Critical patent/CA2197725C/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
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
    • H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
    • 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

Abstract

An improvement is disclosed to an antenna structure that is a pair of coplanar triangular loops with a corner of each triangle at the centre and the triangle sides opposite those corners placed parallel to each other to form the outer sides of the structure. The improvement is extra conductors placed between the central point and the centre of the outer parallel sides. This improvement not only strengthens the structure, which may be important in the high-frequency spectrum, but it also is convenient for turnstile and log-periodic arrays of such structures.
CA002197725A 1997-02-17 1997-02-17 The strengthened double-delta antenna structure Expired - Fee Related CA2197725C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002197725A CA2197725C (en) 1997-02-17 1997-02-17 The strengthened double-delta antenna structure
US08/806,453 US5995060A (en) 1997-02-17 1997-02-26 Strengthened double-delta antenna structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002197725A CA2197725C (en) 1997-02-17 1997-02-17 The strengthened double-delta antenna structure

Publications (2)

Publication Number Publication Date
CA2197725A1 true CA2197725A1 (en) 1998-08-17
CA2197725C CA2197725C (en) 2000-05-30

Family

ID=4159955

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002197725A Expired - Fee Related CA2197725C (en) 1997-02-17 1997-02-17 The strengthened double-delta antenna structure

Country Status (2)

Country Link
US (1) US5995060A (en)
CA (1) CA2197725C (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2260380C (en) * 1999-01-26 2000-12-26 James Stanley Podger The log-periodic staggered-folded-dipole antenna
US6542128B1 (en) * 2000-03-31 2003-04-01 Tyco Electronics Logistics Ag Wide beamwidth ultra-compact antenna with multiple polarization
CA2347596C (en) 2001-05-17 2004-01-27 James Stanley Podger The double-lemniscate antenna element
US6839038B2 (en) * 2002-06-17 2005-01-04 Lockheed Martin Corporation Dual-band directional/omnidirectional antenna
CA2389791C (en) 2002-06-20 2004-10-19 James Stanley Podger Multiloop antenna elements
US6759990B2 (en) 2002-11-08 2004-07-06 Tyco Electronics Logistics Ag Compact antenna with circular polarization
US8030926B2 (en) * 2006-03-15 2011-10-04 Albert Einstein College Of Medicine Of Yeshiva University Surface coil arrays for simultaneous reception and transmission with a volume coil and uses thereof
US7429960B2 (en) * 2006-04-27 2008-09-30 Agc Automotive Americas R & D, Inc. Log-periodic antenna
US7432872B1 (en) * 2007-04-27 2008-10-07 The United States Of America As Represented By The Secretary Compact aviation vertically polarized log periodic antenna
US20140139389A1 (en) * 2012-08-31 2014-05-22 Kresimir Odorcic Antenna
CN103928754B (en) * 2014-04-25 2016-06-29 中国科学院电子学研究所 A kind of broadband V-type resistor loaded amounts to a period of time antenna
USD863268S1 (en) 2018-05-04 2019-10-15 Scott R. Archer Yagi-uda antenna with triangle loop
CN111029734A (en) * 2019-11-19 2020-04-17 航天恒星科技有限公司 Ultra-wideband end-fire antenna

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2210491A (en) * 1938-10-31 1940-08-06 Rca Corp High frequency antenna
US3210767A (en) * 1960-05-03 1965-10-05 Univ Illinois Frequency independent unidirectional antennas
US3932874A (en) * 1974-09-11 1976-01-13 Rca Corporation Broadband turnstile antenna
GB1515164A (en) * 1975-09-16 1978-06-21 Plessey Co Ltd Guidance systems
US4593289A (en) * 1983-04-18 1986-06-03 Butternut Electronics Co. Multi-band dipole antenna with matching stubs
US4996535A (en) * 1988-09-08 1991-02-26 General Electric Company Shortened dual-mode horn antenna
CA2170918C (en) * 1996-03-04 2000-01-11 James Stanley Podger Double-delta turnstile antenna
CA2172742C (en) * 1996-03-27 1997-09-28 James Stanley Podger Double-delta log-periodic antenna

Also Published As

Publication number Publication date
US5995060A (en) 1999-11-30
CA2197725C (en) 2000-05-30

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed