CA2021057A1 - Double skirt omnidirectional dipole antenna - Google Patents

Double skirt omnidirectional dipole antenna

Info

Publication number
CA2021057A1
CA2021057A1 CA2021057A CA2021057A CA2021057A1 CA 2021057 A1 CA2021057 A1 CA 2021057A1 CA 2021057 A CA2021057 A CA 2021057A CA 2021057 A CA2021057 A CA 2021057A CA 2021057 A1 CA2021057 A1 CA 2021057A1
Authority
CA
Canada
Prior art keywords
dipole
feed line
cylindrical
mast
radiating element
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
CA2021057A
Other languages
French (fr)
Other versions
CA2021057C (en
Inventor
Jonathan X. Lin
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.)
Allen Telecom LLC
Original Assignee
Alliance Telecommunications Corp
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 Alliance Telecommunications Corp filed Critical Alliance Telecommunications Corp
Publication of CA2021057A1 publication Critical patent/CA2021057A1/en
Application granted granted Critical
Publication of CA2021057C publication Critical patent/CA2021057C/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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
    • H01Q21/10—Collinear arrangements of substantially straight elongated conductive units

Abstract

An omnidirectional antenna includes one or more dipole radiators. Each dipole radiator comprises a first and second cylindrical radiating element. Each radiating element includes an end plate for mounting the radiating element coaxially on a tubular mast. The cylindrical radiating elements, end plates and tubular mast are all DC
connected. A feed line is provided which may extend through the center of the mast and exit at an opening for connection to a secondary feed line. The secondary feed line is connected to an end of one of the cylindrical radiating elements of each pair of elements for each dipole radiator.
The feed line is connected to the end of the cylindrical radiating element opposite the end plate. The configuration of the dipole radiators is such that the radiator functions as an RF choke for the adjacent radiators. An additional single cylindrical element can be provided at the end of a plurality of dipole radiators to provide RF choking for the immediately adjacent dipole radiator. A plurality of main feed lines may be included to extend through the center of the mast with corresponding openings for connection to secondary feed lines.
CA002021057A 1989-07-31 1990-07-12 Double skirt omnidirectional dipole antenna Expired - Fee Related CA2021057C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US387,007 1982-06-10
US07/387,007 US4963879A (en) 1989-07-31 1989-07-31 Double skirt omnidirectional dipole antenna

Publications (2)

Publication Number Publication Date
CA2021057A1 true CA2021057A1 (en) 1991-02-01
CA2021057C CA2021057C (en) 1995-01-17

Family

ID=23528043

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002021057A Expired - Fee Related CA2021057C (en) 1989-07-31 1990-07-12 Double skirt omnidirectional dipole antenna

Country Status (3)

Country Link
US (1) US4963879A (en)
EP (1) EP0411363A3 (en)
CA (1) CA2021057C (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2097122A1 (en) * 1992-06-08 1993-12-09 James Hadzoglou Adjustable beam tilt antenna
DE4225298A1 (en) * 1992-07-31 1994-02-03 Kolbe & Co Hans Linear array antenna with omnidirectional horizontal radiation pattern - incorporates parasitically excited outer tubular resonator radiating from scattering field at open ends of coaxial tubular sections
WO1994022180A1 (en) * 1993-03-18 1994-09-29 Gabriel Electronics Incorporated Stacked biconical omnidirectional antenna
US5541609A (en) * 1995-03-08 1996-07-30 Virginia Polytechnic Institute And State University Reduced operator emission exposure antennas for safer hand-held radios and cellular telephones
US5606332A (en) * 1995-08-21 1997-02-25 Motorola, Inc. Dual function antenna structure and a portable radio having same
US6177911B1 (en) * 1996-02-20 2001-01-23 Matsushita Electric Industrial Co., Ltd. Mobile radio antenna
US6421024B1 (en) * 1999-05-06 2002-07-16 Kathrein-Werke Kg Multi-frequency band antenna
US7577398B2 (en) 2000-01-14 2009-08-18 Andrew Llc Repeaters for wireless communication systems
US6864853B2 (en) * 1999-10-15 2005-03-08 Andrew Corporation Combination directional/omnidirectional antenna
US6483471B1 (en) * 2001-06-06 2002-11-19 Xm Satellite Radio, Inc. Combination linearly polarized and quadrifilar antenna
US6552692B1 (en) 2001-10-30 2003-04-22 Andrew Corporation Dual band sleeve dipole antenna
KR100442453B1 (en) * 2001-10-31 2004-07-30 김영준 nX Antenna for wireless communication
US6621458B1 (en) 2002-04-02 2003-09-16 Xm Satellite Radio, Inc. Combination linearly polarized and quadrifilar antenna sharing a common ground plane
US7068233B2 (en) * 2002-05-06 2006-06-27 Db Systems, Inc. Integrated multipath limiting ground based antenna
US6839038B2 (en) * 2002-06-17 2005-01-04 Lockheed Martin Corporation Dual-band directional/omnidirectional antenna
US6720935B2 (en) * 2002-07-12 2004-04-13 The Mitre Corporation Single and dual-band patch/helix antenna arrays
WO2004010527A2 (en) * 2002-07-17 2004-01-29 Massachusetts Institute Of Technology Wideband dipole array antenna element
FR2849289B1 (en) 2002-12-20 2005-03-18 Socapex Amphenol COLORED ANTENNA OF ALTERNATE COAXIAL TYPE
US8816925B2 (en) 2009-05-06 2014-08-26 Bae Systems Information And Electronic Systems Integration Inc. Multiband whip antenna
US8081130B2 (en) * 2009-05-06 2011-12-20 Bae Systems Information And Electronic Systems Integration Inc. Broadband whip antenna
US8593363B2 (en) 2011-01-27 2013-11-26 Tdk Corporation End-fed sleeve dipole antenna comprising a ¾-wave transformer
WO2012150924A1 (en) * 2011-05-02 2012-11-08 R.A. Miller Industries, Inc. Strengthening means for a dipole whip antenna
CN104810626B (en) * 2015-03-02 2017-12-15 同济大学 Double frequency ground exploring radar antenna in a kind of hole
RU2587529C1 (en) * 2015-05-28 2016-06-20 Открытое акционерное общество научно-внедренческое предприятие "ПРОТЕК" Nondirectional antenna in horizontal plane
RU2672503C1 (en) * 2018-02-01 2018-11-15 Открытое акционерное общество "Научно-производственное объединение Ангстрем" Ultra broadband antenna range dmv2
US10826179B2 (en) 2018-03-19 2020-11-03 Laurice J. West Short dual-driven groundless antennas
US11799212B2 (en) * 2021-10-04 2023-10-24 Mirach Sas Di Annamaria Saveri & C. Collinear antenna array

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2199375A (en) * 1938-10-15 1940-04-30 Rca Corp Antenna
US2821709A (en) * 1952-03-21 1958-01-28 Fucci Salvatore Antennas
DE1013723B (en) * 1954-11-24 1957-08-14 Siemens Ag Broadband omnidirectional antenna
US3000008A (en) * 1960-06-22 1961-09-12 Pickles Sidney Shielded antenna
US3750181A (en) * 1971-09-07 1973-07-31 Radionics Inc Ground independent antenna
US4369449A (en) * 1981-06-01 1983-01-18 Macdougall James B Linearly polarized omnidirectional antenna

Also Published As

Publication number Publication date
CA2021057C (en) 1995-01-17
EP0411363A3 (en) 1991-09-25
EP0411363A2 (en) 1991-02-06
US4963879A (en) 1990-10-16

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed