GB1264301A - - Google Patents
Info
- Publication number
- GB1264301A GB1264301A GB1264301DA GB1264301A GB 1264301 A GB1264301 A GB 1264301A GB 1264301D A GB1264301D A GB 1264301DA GB 1264301 A GB1264301 A GB 1264301A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflecting plate
- elevation
- lens
- polarized
- feeds
- 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
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/23—Combinations of reflecting surfaces with refracting or diffracting devices
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Abstract
1,264,301. Aerials. MINISTER OF TECHNOLOGY. 22 Dec., 1966 [24 Sept., 1965], No. 40871/65. Heading H4A. In a microwave aerial, a Luneberg lens, containing a reflecting plate, is rotatable above a vertical axis. The aerial is fed from external static R.F. feeds and azimuth scan is effected by rotation of the reflecting plate. Elevation cover is effected by a number of feeds in elevation, selected by R.F. switches. By tilting the reflecting plate about a horizontal axis, two elevation beam positions are available. Where the lens is supplied from polarized external sources and has a polarized reflector, a further movable feed having an opposite polarization may radiate through the reflector and may be moved independently of the polarized beam to provide continuous tracking in illumination. With the rotating system, the beam has a short period of dwell on any one zone of the lens, and the formation of hot spots is reduced.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4087165 | 1965-09-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1264301A true GB1264301A (en) | 1972-02-23 |
Family
ID=10417044
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1264301D Expired GB1264301A (en) | 1965-09-24 | 1965-09-24 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1264301A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114545406A (en) * | 2022-04-25 | 2022-05-27 | 广东福顺天际通信有限公司 | Programmable reflector |
-
1965
- 1965-09-24 GB GB1264301D patent/GB1264301A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114545406A (en) * | 2022-04-25 | 2022-05-27 | 广东福顺天际通信有限公司 | Programmable reflector |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |