GB1528125A - Log periodic antennae - Google Patents

Log periodic antennae

Info

Publication number
GB1528125A
GB1528125A GB5411074A GB5411074A GB1528125A GB 1528125 A GB1528125 A GB 1528125A GB 5411074 A GB5411074 A GB 5411074A GB 5411074 A GB5411074 A GB 5411074A GB 1528125 A GB1528125 A GB 1528125A
Authority
GB
United Kingdom
Prior art keywords
array
dipole
wires
stated
log periodic
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
GB5411074A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB5411074A priority Critical patent/GB1528125A/en
Publication of GB1528125A publication Critical patent/GB1528125A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/10—Logperiodic antennas

Abstract

1528125 AerialsMARCONI CO Ltd 31 Oct 1975 [13 Dec 1974] 54110/74 Heading H4A A log periodic array 10 of dipole elements, fed alternately from a common transmission line 20 are supported above ground on wires 11 between masts 16 and 18 and a point 14 on the ground. An auxiliary array 12 of shorter parasitic elements is supported in like fashion above array 10 on wires 13 each element thereof being situated vertically above a corresponding dipole of array 10 at a spacing of one eighth of the operating wavelength of the respective dipole element, thereby acting as a director but it is stated that the mutual positions of the arrays may be interchanged. It is stated that the elevational radiation pattern of the array is rotated upwards to improve the overall gain.
GB5411074A 1975-10-31 1975-10-31 Log periodic antennae Expired GB1528125A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5411074A GB1528125A (en) 1975-10-31 1975-10-31 Log periodic antennae

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5411074A GB1528125A (en) 1975-10-31 1975-10-31 Log periodic antennae

Publications (1)

Publication Number Publication Date
GB1528125A true GB1528125A (en) 1978-10-11

Family

ID=10469942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5411074A Expired GB1528125A (en) 1975-10-31 1975-10-31 Log periodic antennae

Country Status (1)

Country Link
GB (1) GB1528125A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545620A (en) * 2013-09-29 2014-01-29 深圳市顶一精密五金有限公司 H-face array shortwave logarithm three-dimensional array antenna
CN103515716B (en) * 2013-09-29 2015-11-25 深圳市顶一精密五金有限公司 A kind of short wave logarithm three-dimensional array antenna system
CN103515707B (en) * 2013-09-29 2016-01-20 深圳市顶一精密五金有限公司 A kind of rotation system of H-face array shortwave logarithm three-dimensional array antenna

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103545620A (en) * 2013-09-29 2014-01-29 深圳市顶一精密五金有限公司 H-face array shortwave logarithm three-dimensional array antenna
CN103515716B (en) * 2013-09-29 2015-11-25 深圳市顶一精密五金有限公司 A kind of short wave logarithm three-dimensional array antenna system
CN103515707B (en) * 2013-09-29 2016-01-20 深圳市顶一精密五金有限公司 A kind of rotation system of H-face array shortwave logarithm three-dimensional array antenna

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Legal Events

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