GB1528125A - Log periodic antennae - Google Patents
Log periodic antennaeInfo
- 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
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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
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.
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)
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 |
-
1975
- 1975-10-31 GB GB5411074A patent/GB1528125A/en not_active Expired
Cited By (3)
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 |