FR2241886A1 - Multibeam satellite antennae network - operates in low gigacycle frequency range to increase channel availability - Google Patents
Multibeam satellite antennae network - operates in low gigacycle frequency range to increase channel availabilityInfo
- Publication number
- FR2241886A1 FR2241886A1 FR7318340A FR7318340A FR2241886A1 FR 2241886 A1 FR2241886 A1 FR 2241886A1 FR 7318340 A FR7318340 A FR 7318340A FR 7318340 A FR7318340 A FR 7318340A FR 2241886 A1 FR2241886 A1 FR 2241886A1
- Authority
- FR
- France
- Prior art keywords
- gigacycle
- operates
- low
- frequency range
- network
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
Landscapes
- Radio Relay Systems (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
Antennae network particularly applicable to satellite communication systems is intended to increase the number of channels available to the system without increasing unduly losses that could be expected in the multiplexing arrangements and hence requirements for amplifier power. The network feeds n radiating or illuminating elements arranged in N groups before the reflecting surface. (eg n = 144, N = 4). Each element is fed from an output power amplifier, these in turn being supplied from power splitters and groups of dephasing circuits. Three junction hybrid mixers are used to assure almost complete independence of the regulation of the four output beams.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7318340A FR2241886A1 (en) | 1973-05-21 | 1973-05-21 | Multibeam satellite antennae network - operates in low gigacycle frequency range to increase channel availability |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7318340A FR2241886A1 (en) | 1973-05-21 | 1973-05-21 | Multibeam satellite antennae network - operates in low gigacycle frequency range to increase channel availability |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2241886A1 true FR2241886A1 (en) | 1975-03-21 |
FR2241886B1 FR2241886B1 (en) | 1976-09-17 |
Family
ID=9119651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7318340A Granted FR2241886A1 (en) | 1973-05-21 | 1973-05-21 | Multibeam satellite antennae network - operates in low gigacycle frequency range to increase channel availability |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2241886A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533763A1 (en) * | 1982-09-23 | 1984-03-30 | Rca Corp | MODEL BEAM ANTENNA SYSTEM WITH POSSIBILITY OF CHANGING BEAM CONFIGURATION |
FR2560446A1 (en) * | 1984-01-05 | 1985-08-30 | Europ Agence Spatiale | POWER DISTRIBUTOR FOR MULTI-BEAM ANTENNA WITH SHARED SOURCE ELEMENTS |
EP0333166A1 (en) * | 1988-03-18 | 1989-09-20 | Alcatel Espace | Electronically reconformable transmitting antenna |
FR2652452A1 (en) * | 1989-09-26 | 1991-03-29 | Europ Agence Spatiale | DEVICE FOR SUPPLYING A MULTI-BEAM ANTENNA. |
EP0497652A1 (en) * | 1991-01-31 | 1992-08-05 | Agence Spatiale Europeenne | Device for the electronic control of the radiation pattern of a single or multi beam antenna with variable direction and/or width |
-
1973
- 1973-05-21 FR FR7318340A patent/FR2241886A1/en active Granted
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2533763A1 (en) * | 1982-09-23 | 1984-03-30 | Rca Corp | MODEL BEAM ANTENNA SYSTEM WITH POSSIBILITY OF CHANGING BEAM CONFIGURATION |
FR2560446A1 (en) * | 1984-01-05 | 1985-08-30 | Europ Agence Spatiale | POWER DISTRIBUTOR FOR MULTI-BEAM ANTENNA WITH SHARED SOURCE ELEMENTS |
EP0333166A1 (en) * | 1988-03-18 | 1989-09-20 | Alcatel Espace | Electronically reconformable transmitting antenna |
FR2628896A1 (en) * | 1988-03-18 | 1989-09-22 | Alcatel Espace | ELECTRONIC RECONFIGURATION ANTENNA IN TRANSMISSION |
US4965587A (en) * | 1988-03-18 | 1990-10-23 | Societe Anonyme Dite: Alcatel Espace | Antenna which is electronically reconfigurable in transmission |
FR2652452A1 (en) * | 1989-09-26 | 1991-03-29 | Europ Agence Spatiale | DEVICE FOR SUPPLYING A MULTI-BEAM ANTENNA. |
EP0420739A1 (en) * | 1989-09-26 | 1991-04-03 | Agence Spatiale Europeenne | Feeding device for a multiple beam antenna |
US5115248A (en) * | 1989-09-26 | 1992-05-19 | Agence Spatiale Europeenne | Multibeam antenna feed device |
EP0497652A1 (en) * | 1991-01-31 | 1992-08-05 | Agence Spatiale Europeenne | Device for the electronic control of the radiation pattern of a single or multi beam antenna with variable direction and/or width |
FR2672436A1 (en) * | 1991-01-31 | 1992-08-07 | Europ Agence Spatiale | DEVICE FOR ELECTRONICALLY CONTROLLING THE RADIATION DIAGRAM OF AN ANTENNA WITH ONE OR MORE DIRECTION BEAMS AND / OR VARIABLE WIDTH. |
US5151706A (en) * | 1991-01-31 | 1992-09-29 | Agence Spatiale Europeene | Apparatus for electronically controlling the radiation pattern of an antenna having one or more beams of variable width and/or direction |
Also Published As
Publication number | Publication date |
---|---|
FR2241886B1 (en) | 1976-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |