GB1532237A - Aerial arrays - Google Patents

Aerial arrays

Info

Publication number
GB1532237A
GB1532237A GB30626/75A GB3062675A GB1532237A GB 1532237 A GB1532237 A GB 1532237A GB 30626/75 A GB30626/75 A GB 30626/75A GB 3062675 A GB3062675 A GB 3062675A GB 1532237 A GB1532237 A GB 1532237A
Authority
GB
United Kingdom
Prior art keywords
boom
elements
log periodic
collinear
july
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
GB30626/75A
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.)
AERIALITE AERIALS Ltd
Original Assignee
AERIALITE AERIALS 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 AERIALITE AERIALS Ltd filed Critical AERIALITE AERIALS Ltd
Priority to GB30626/75A priority Critical patent/GB1532237A/en
Publication of GB1532237A publication Critical patent/GB1532237A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements
    • H01Q5/48—Combinations of two or more dipole type antennas
    • H01Q5/49—Combinations of two or more dipole type antennas with parasitic elements used for purposes other than for dual-band or multi-band, e.g. imbricated Yagi antennas

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Jib Cranes (AREA)

Abstract

1532237 Log periodic arrays AERIALITE AERIALS Ltd 16 July 1976 [22 July 1975] 30626/75 Heading H4A An aerial comprises a first log periodic end-fire set of dipoles for operatiion in one frequency band, and a second log periodic end fire set for operation in a second frequency band, at least some of the dipole elements of one set being collinear with those of the other set to produce a compact aerial. As shown, the first set includes dipole elements 20A-24A mounted on boom 12 and elements 20B-24B on boom 13; the second set includes elements 25A-33A on boom 12 and elements 25B-33B on boom 13. The parallel booms 12 and 13 constitute a transmission line impedancematched to a coaxial cable which is connected to them at their forward end and led through boom 13 to a rearward termination 35, thence to a downhead. Dipole elements which are collinear, e.g. 20A and 29A, may be made as a single rod. Booms 12 and 13 are connected electrically together at their rearward end.
GB30626/75A 1976-07-16 1976-07-16 Aerial arrays Expired GB1532237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB30626/75A GB1532237A (en) 1976-07-16 1976-07-16 Aerial arrays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB30626/75A GB1532237A (en) 1976-07-16 1976-07-16 Aerial arrays

Publications (1)

Publication Number Publication Date
GB1532237A true GB1532237A (en) 1978-11-15

Family

ID=10310592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30626/75A Expired GB1532237A (en) 1976-07-16 1976-07-16 Aerial arrays

Country Status (1)

Country Link
GB (1) GB1532237A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1517403A2 (en) * 2003-08-29 2005-03-23 Fujitsu Ten Limited Circular polarization antenna and composite antenna including this antenna
JP2006049946A (en) * 2004-07-30 2006-02-16 Maspro Denkoh Corp Terrestrial digital broadcast reception system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1517403A2 (en) * 2003-08-29 2005-03-23 Fujitsu Ten Limited Circular polarization antenna and composite antenna including this antenna
EP1517403A3 (en) * 2003-08-29 2006-04-12 Fujitsu Ten Limited Circular polarization antenna and composite antenna including this antenna
US7286098B2 (en) 2003-08-29 2007-10-23 Fujitsu Ten Limited Circular polarization antenna and composite antenna including this antenna
JP2006049946A (en) * 2004-07-30 2006-02-16 Maspro Denkoh Corp Terrestrial digital broadcast reception system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee