GB1532237A - Aerial arrays - Google Patents
Aerial arraysInfo
- 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
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.
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)
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 |
-
1976
- 1976-07-16 GB GB30626/75A patent/GB1532237A/en not_active Expired
Cited By (4)
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 |