FR2193268A1 - - Google Patents
Info
- Publication number
- FR2193268A1 FR2193268A1 FR7325748A FR7325748A FR2193268A1 FR 2193268 A1 FR2193268 A1 FR 2193268A1 FR 7325748 A FR7325748 A FR 7325748A FR 7325748 A FR7325748 A FR 7325748A FR 2193268 A1 FR2193268 A1 FR 2193268A1
- Authority
- FR
- France
- 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- Withdrawn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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/38—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna
- G01S1/40—Systems for determining direction or position line using comparison of [1] the phase of the envelope of the change of frequency, due to Doppler effect, of the signal transmitted by an antenna moving, or appearing to move, in a cyclic path with [2] the phase of a reference signal, the frequency of this reference signal being synchronised with that of the cyclic movement, or apparent cyclic movement, of the antenna the apparent movement of the antenna being produced by cyclic sequential energisation of fixed antennas
-
- 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
- H01Q19/13—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 the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
-
- 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
- H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching
- H01Q3/245—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching in the focal plane of a focussing device
-
- 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
- H01Q3/2658—Phased-array fed focussing structure
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27245172A | 1972-07-17 | 1972-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2193268A1 true FR2193268A1 (es) | 1974-02-15 |
Family
ID=23039845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7325748A Withdrawn FR2193268A1 (es) | 1972-07-17 | 1973-07-13 |
Country Status (6)
Country | Link |
---|---|
US (1) | US3775773A (es) |
JP (1) | JPS4960155A (es) |
DE (1) | DE2335792A1 (es) |
ES (1) | ES416978A1 (es) |
FR (1) | FR2193268A1 (es) |
GB (1) | GB1434986A (es) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548836A1 (fr) * | 1983-07-08 | 1985-01-11 | Thomson Csf | Antenne a couverture quasi torique a deux reflecteurs |
FR2577721A1 (fr) * | 1985-02-19 | 1986-08-22 | Thomson Csf | Source primaire hyperfrequence pour antenne a balayage conique de phase |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3858218A (en) * | 1973-04-03 | 1974-12-31 | Hazeltine Corp | Antenna system for radiating doppler coded pattern, using sequential modal excitation |
US3864680A (en) * | 1973-04-03 | 1975-02-04 | Hazeltine Corp | Array antenna for radiating doppler coded pattern using phase control |
US5565879A (en) * | 1980-03-26 | 1996-10-15 | Unisys Corporation | High scan rate low sidelobe circular scanning antenna |
US5714964A (en) * | 1995-11-07 | 1998-02-03 | Condor Systems, Inc. | Horned interferometer antenna apparatus |
US6930647B2 (en) | 2001-05-17 | 2005-08-16 | Hitachi Kokusai Electric Inc. | Semicircular radial antenna |
AUPR709101A0 (en) * | 2001-08-17 | 2001-09-06 | Argus Technologies (Australia) Pty Ltd | A waveguide antenna |
FR2835356B1 (fr) * | 2002-01-31 | 2005-09-30 | Cit Alcatel | Antenne de reception pour couverture multifaisceaux |
US9379437B1 (en) | 2011-01-31 | 2016-06-28 | Ball Aerospace & Technologies Corp. | Continuous horn circular array antenna system |
US8648768B2 (en) | 2011-01-31 | 2014-02-11 | Ball Aerospace & Technologies Corp. | Conical switched beam antenna method and apparatus |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2721263A (en) * | 1945-11-13 | 1955-10-18 | Roy C Spencer | Curved throat scan horn for the transmission of electromagnetic energy |
US2659005A (en) * | 1951-03-21 | 1953-11-10 | Ca Nat Research Council | Microwave antenna |
-
1972
- 1972-07-17 US US00272451A patent/US3775773A/en not_active Expired - Lifetime
-
1973
- 1973-07-12 GB GB3332173A patent/GB1434986A/en not_active Expired
- 1973-07-13 DE DE19732335792 patent/DE2335792A1/de active Pending
- 1973-07-13 FR FR7325748A patent/FR2193268A1/fr not_active Withdrawn
- 1973-07-17 ES ES416978A patent/ES416978A1/es not_active Expired
- 1973-07-17 JP JP48079984A patent/JPS4960155A/ja active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2548836A1 (fr) * | 1983-07-08 | 1985-01-11 | Thomson Csf | Antenne a couverture quasi torique a deux reflecteurs |
EP0131512A1 (fr) * | 1983-07-08 | 1985-01-16 | Thomson-Csf | Antenne à couverture quasi torique à deux réflecteurs |
FR2577721A1 (fr) * | 1985-02-19 | 1986-08-22 | Thomson Csf | Source primaire hyperfrequence pour antenne a balayage conique de phase |
Also Published As
Publication number | Publication date |
---|---|
GB1434986A (en) | 1976-05-12 |
DE2335792A1 (de) | 1974-01-31 |
US3775773A (en) | 1973-11-27 |
AU5816773A (en) | 1975-01-23 |
ES416978A1 (es) | 1976-03-16 |
JPS4960155A (es) | 1974-06-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |