GB610360A - Improvements in directional wireless aerial systems - Google Patents
Improvements in directional wireless aerial systemsInfo
- Publication number
- GB610360A GB610360A GB994146A GB994146A GB610360A GB 610360 A GB610360 A GB 610360A GB 994146 A GB994146 A GB 994146A GB 994146 A GB994146 A GB 994146A GB 610360 A GB610360 A GB 610360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- horn
- guide
- wave
- axis
- asymmetrical
- 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
- H01Q19/10—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 reflecting surfaces
- H01Q19/12—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 reflecting surfaces wherein the surfaces are concave
Landscapes
- Aerials With Secondary Devices (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
610,360. Aerials. OWEN, A. R. G., KNAGGS, H., and BUCKINGHAM, J. March 30, 1946, No. 9941. [Class 40 (vii)] A directional aerial system, particularly for use in ship-borne radar systems and having an asymmetrical polar diagram in the vertical plane so as to minimize reflections from the'surface of the sea, comprises a wave-guide horn 1, having a rectangular aperture and fed from or feeding into a rectangular wave-guide 2, the horn being in this case, where the radiation is vertically polarized, symmetrical about the vertical plane intersecting the axis of the horn and asymmetrical about the horizontal plane. The point 0, the intersection of the axis of the wave-guide 2 with the plane of the aperture, is arranged at the focus of a parabolic reflector, and the radiation characteristic then decreases slowly in the upward direction and decreases rapidly downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB994146A GB610360A (en) | 1946-03-30 | 1946-03-30 | Improvements in directional wireless aerial systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB994146A GB610360A (en) | 1946-03-30 | 1946-03-30 | Improvements in directional wireless aerial systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB610360A true GB610360A (en) | 1948-10-14 |
Family
ID=9881592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB994146A Expired GB610360A (en) | 1946-03-30 | 1946-03-30 | Improvements in directional wireless aerial systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB610360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693614A (en) * | 1983-06-20 | 1987-09-15 | Sumitomo Metal Industries, Ltd. | Apparatus for detecting slag outflow |
| US5438340A (en) * | 1992-06-12 | 1995-08-01 | Sony Corporation | Elliptical feedhorn and parabolic reflector with perpendicular major axes |
-
1946
- 1946-03-30 GB GB994146A patent/GB610360A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693614A (en) * | 1983-06-20 | 1987-09-15 | Sumitomo Metal Industries, Ltd. | Apparatus for detecting slag outflow |
| US5438340A (en) * | 1992-06-12 | 1995-08-01 | Sony Corporation | Elliptical feedhorn and parabolic reflector with perpendicular major axes |
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