GB9120954D0 - Antenna system - Google Patents
Antenna systemInfo
- Publication number
- GB9120954D0 GB9120954D0 GB919120954A GB9120954A GB9120954D0 GB 9120954 D0 GB9120954 D0 GB 9120954D0 GB 919120954 A GB919120954 A GB 919120954A GB 9120954 A GB9120954 A GB 9120954A GB 9120954 D0 GB9120954 D0 GB 9120954D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- antenna system
- antenna
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/025—Multimode horn antennas; Horns using higher mode of propagation
- H01Q13/0258—Orthomode horns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/04—Multimode antennas
-
- 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
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
- H01Q3/36—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with variable phase-shifters
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB909021460A GB9021460D0 (en) | 1990-10-03 | 1990-10-03 | Antenna system |
Publications (2)
Publication Number | Publication Date |
---|---|
GB9120954D0 true GB9120954D0 (en) | 1991-11-27 |
GB2249873A GB2249873A (en) | 1992-05-20 |
Family
ID=10683140
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB909021460A Pending GB9021460D0 (en) | 1990-10-03 | 1990-10-03 | Antenna system |
GB9120954A Withdrawn GB2249873A (en) | 1990-10-03 | 1991-10-02 | Antenna system |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB909021460A Pending GB9021460D0 (en) | 1990-10-03 | 1990-10-03 | Antenna system |
Country Status (1)
Country | Link |
---|---|
GB (2) | GB9021460D0 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1573604A (en) * | 1977-02-18 | 1980-08-28 | Nat Res Dev | Aerial arrays |
US4810982A (en) * | 1987-10-23 | 1989-03-07 | Hughes Aircraft Company | Coaxial transmission-line matrix including in-plane crossover |
US4812788A (en) * | 1987-11-02 | 1989-03-14 | Hughes Aircraft Company | Waveguide matrix including in-plane crossover |
-
1990
- 1990-10-03 GB GB909021460A patent/GB9021460D0/en active Pending
-
1991
- 1991-10-02 GB GB9120954A patent/GB2249873A/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
GB2249873A (en) | 1992-05-20 |
GB9021460D0 (en) | 1991-04-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |