GB467012A - Improvements relating to antenna systems - Google Patents

Improvements relating to antenna systems

Info

Publication number
GB467012A
GB467012A GB209/37A GB20937A GB467012A GB 467012 A GB467012 A GB 467012A GB 209/37 A GB209/37 A GB 209/37A GB 20937 A GB20937 A GB 20937A GB 467012 A GB467012 A GB 467012A
Authority
GB
United Kingdom
Prior art keywords
line
jan
aerial
impedance
wave
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
Application number
GB209/37A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB467012A publication Critical patent/GB467012A/en
Expired 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling

Landscapes

  • Details Of Aerials (AREA)
  • Transmitters (AREA)

Abstract

467,012. Wireless aerials. BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 4, 1937, No. 209. Convention date, Jan 3, 1936. [Class 40 (v)] In order to couple a half-wave aerial 1 to a high-frequency source 9, without creating standing waves on the transmission line 2, the oute: conductor 4 of the line is connected to the lower limb 8 of a quarter-wave impedance - matching section 5 whilst the inner conductor 37 is connected to a point some distance along the arm 7 of the balancing section. This equates the impedance of the line 2 to that of the aerial 1 and also balances the load. The same form of coupling can be usec in the case of an open two-wire trans mission line.
GB209/37A 1936-01-03 1937-01-04 Improvements relating to antenna systems Expired GB467012A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US57343A US2124424A (en) 1936-01-03 1936-01-03 Antenna system

Publications (1)

Publication Number Publication Date
GB467012A true GB467012A (en) 1937-06-09

Family

ID=22009998

Family Applications (1)

Application Number Title Priority Date Filing Date
GB209/37A Expired GB467012A (en) 1936-01-03 1937-01-04 Improvements relating to antenna systems

Country Status (4)

Country Link
US (1) US2124424A (en)
FR (1) FR815759A (en)
GB (1) GB467012A (en)
NL (1) NL46868C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176660A (en) * 1984-05-29 1986-12-31 Licentia Gmbh Aerial arrangement for electronic proximity fuses or spacing fuses

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702345A (en) * 1949-08-25 1955-02-15 Walter Ludwig Radiation and interception of electromagnetic waves
US2941204A (en) * 1955-06-16 1960-06-14 Arnold B Bailey Antenna mount
NL181388C (en) * 1978-03-22 1987-08-03 Philips Nv AERIAL DEVICE FOR A NUMBER OF SIMULTANEOUS TRANSMITTER RECEIVERS.
US4259673A (en) * 1979-06-05 1981-03-31 Harold Guretzky Stub matched antenna and method of feeding same
US4254420A (en) * 1980-01-07 1981-03-03 Peoples John C Whip antenna of reduced length for VHF radio communication
FR2539557B3 (en) * 1983-01-13 1985-12-20 Lerc Lab Etudes Rech Chim BROADBAND ANTENNA
US4644364A (en) * 1984-12-07 1987-02-17 Parks Malcolm G Method of and means for coupling a two conductor transmission line to an antenna
US5451971A (en) * 1993-07-13 1995-09-19 Motorola, Inc. Combined J-pole and transmission line antenna
US5600339A (en) * 1994-12-06 1997-02-04 Oros; Edward A. Antenna
US7859477B2 (en) * 2007-03-30 2010-12-28 Silver Spring Networks, Inc. J-pole antenna
CN101593870B (en) * 2008-05-27 2017-04-19 光宝电子(广州)有限公司 Metal wire antenna
US8947313B2 (en) * 2010-11-15 2015-02-03 Edison Fong Radial-free collinear omni-directional antenna with gain and virtual ground
US9608336B1 (en) * 2015-08-25 2017-03-28 Edison Fong Radial-free collinear omni-directional triband half wavelength antenna with virtual ground, single coaxial cable feedpoint, and with minimal interaction of adjustment between bands
USD798847S1 (en) 2016-01-07 2017-10-03 The United States of America as represented by the Federal Bureau of Investigation, Dept. of Justice Antenna
US10468743B2 (en) 2016-01-07 2019-11-05 United States of America as represented by the Federal Bureau of Investigation, Dept. of Justice Mast mountable antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2176660A (en) * 1984-05-29 1986-12-31 Licentia Gmbh Aerial arrangement for electronic proximity fuses or spacing fuses

Also Published As

Publication number Publication date
NL46868C (en)
US2124424A (en) 1938-07-19
FR815759A (en) 1937-07-22

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