WO2000054366A3 - Dipole antenna - Google Patents

Dipole antenna Download PDF

Info

Publication number
WO2000054366A3
WO2000054366A3 PCT/GB2000/000878 GB0000878W WO0054366A3 WO 2000054366 A3 WO2000054366 A3 WO 2000054366A3 GB 0000878 W GB0000878 W GB 0000878W WO 0054366 A3 WO0054366 A3 WO 0054366A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
coaxial cable
vehicle windscreen
cable
boards
Prior art date
Application number
PCT/GB2000/000878
Other languages
French (fr)
Other versions
WO2000054366A2 (en
Inventor
Andrew Jesman
David Pansegrouw
Original Assignee
Jesman Christopher
Andrew Jesman
David Pansegrouw
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 Jesman Christopher, Andrew Jesman, David Pansegrouw filed Critical Jesman Christopher
Priority to AU31749/00A priority Critical patent/AU3174900A/en
Publication of WO2000054366A2 publication Critical patent/WO2000054366A2/en
Publication of WO2000054366A3 publication Critical patent/WO2000054366A3/en

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
    • H01Q9/285—Planar dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

An antenna element comprises a housing (2) having a base (4) adapted for attachment to a vehicle windscreen. Antenna elements are provided on printed circuit boards (7a, 7b) and form a dipole, the elements defining an included angle (A) of approximately 140°. When mounted on the inside surface of a vehicle windscreen, an improved radiation pattern is exhibited compared with a planar antenna. A coaxial cable (13) having inner and outer conductors coupled to the boards (7a, 7b) at their apex is routed in spaced relation to the element (7a) connected to the inner conductor, in such a manner that currents tending to be induced in the outer conductor of the coaxial cable are cancelled as a result of the proximity of the cable (13) to the element (7a). This enables the coaxial cable to be matched to the impedance of the antenna without the need for a balun.
PCT/GB2000/000878 1999-03-10 2000-03-10 Dipole antenna WO2000054366A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU31749/00A AU3174900A (en) 1999-03-10 2000-03-10 Antenna

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9905517A GB2347792B (en) 1999-03-10 1999-03-10 Antenna
GB9905517.0 1999-03-10

Publications (2)

Publication Number Publication Date
WO2000054366A2 WO2000054366A2 (en) 2000-09-14
WO2000054366A3 true WO2000054366A3 (en) 2000-12-14

Family

ID=10849359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2000/000878 WO2000054366A2 (en) 1999-03-10 2000-03-10 Dipole antenna

Country Status (3)

Country Link
AU (1) AU3174900A (en)
GB (1) GB2347792B (en)
WO (1) WO2000054366A2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
WO2004091039A2 (en) 2003-04-10 2004-10-21 Matsushita Electric Industrial Co. Ltd. Antenna element and antenna module, and electronic equipment using same
JP4745134B2 (en) 2006-05-30 2011-08-10 富士通株式会社 Cross dipole antenna, tag using this
TWI376840B (en) 2008-12-25 2012-11-11 Arcadyan Technology Corp Dipole antenna
ITTO20121097A1 (en) * 2012-12-18 2014-06-19 Moltosenso S R L MULTI-BAND ANTENNA
CN106716711B (en) * 2014-10-03 2020-03-06 Ａｇｃ株式会社 Antenna device
CN105680169A (en) * 2016-01-29 2016-06-15 深圳市共进电子股份有限公司 Double-frequency dipole antenna
CN105762516A (en) * 2016-03-07 2016-07-13 深圳市共进电子股份有限公司 Broadband antenna
WO2019024054A1 (en) * 2017-08-03 2019-02-07 深圳市大疆创新科技有限公司 Circularly-polarized dual-frequency antenna

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038662A (en) * 1975-10-07 1977-07-26 Ball Brothers Research Corporation Dielectric sheet mounted dipole antenna with reactive loading
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial
GB2176660A (en) * 1984-05-29 1986-12-31 Licentia Gmbh Aerial arrangement for electronic proximity fuses or spacing fuses
US4746925A (en) * 1985-07-31 1988-05-24 Toyota Jidosha Kabushiki Kaisha Shielded dipole glass antenna with coaxial feed
US5027128A (en) * 1990-01-18 1991-06-25 Blaese Herbert R Inside window antenna
DE19649215A1 (en) * 1995-11-30 1997-06-12 Advantest Corp antenna
DE29904943U1 (en) * 1999-03-18 1999-06-10 Jesman Andrew Dipole antenna

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3247389A1 (en) * 1982-12-22 1984-07-05 Richard Hirschmann Radiotechnisches Werk, 7300 Esslingen SHAFT SHAFT LOCK
GB2142190B (en) * 1983-06-17 1986-07-23 Nat Res Dev Antenna with unbalanced feed
JP3305487B2 (en) * 1994-03-31 2002-07-22 株式会社エヌ・ティ・ティ・ドコモ Communication equipment
JP3536453B2 (en) * 1995-07-27 2004-06-07 アイシン精機株式会社 Antenna device
JP3677559B2 (en) * 1996-07-26 2005-08-03 アイシン精機株式会社 Partially feeding dipole antenna
DE19646100A1 (en) * 1996-11-08 1998-05-14 Fuba Automotive Gmbh Flat antenna
KR100208946B1 (en) * 1997-01-13 1999-07-15 윤종용 Dual band antenna

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4038662A (en) * 1975-10-07 1977-07-26 Ball Brothers Research Corporation Dielectric sheet mounted dipole antenna with reactive loading
GB2029112A (en) * 1978-06-08 1980-03-12 Murphy A Television aerial
GB2176660A (en) * 1984-05-29 1986-12-31 Licentia Gmbh Aerial arrangement for electronic proximity fuses or spacing fuses
US4746925A (en) * 1985-07-31 1988-05-24 Toyota Jidosha Kabushiki Kaisha Shielded dipole glass antenna with coaxial feed
US5027128A (en) * 1990-01-18 1991-06-25 Blaese Herbert R Inside window antenna
DE19649215A1 (en) * 1995-11-30 1997-06-12 Advantest Corp antenna
DE29904943U1 (en) * 1999-03-18 1999-06-10 Jesman Andrew Dipole antenna

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
KRISCHKE A: "Rothammels Antennenbuch", 1995, FRANCKH-KOSMOS, STUTTGART, GERMANY, XP002139088, 225590 *

Also Published As

Publication number Publication date
GB2347792A (en) 2000-09-13
WO2000054366A2 (en) 2000-09-14
GB2347792B (en) 2001-06-06
GB9905517D0 (en) 1999-05-05
AU3174900A (en) 2000-09-28

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