FR2259452A1 - - Google Patents
Info
- Publication number
- FR2259452A1 FR2259452A1 FR7502547A FR7502547A FR2259452A1 FR 2259452 A1 FR2259452 A1 FR 2259452A1 FR 7502547 A FR7502547 A FR 7502547A FR 7502547 A FR7502547 A FR 7502547A FR 2259452 A1 FR2259452 A1 FR 2259452A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4409—HF sub-systems particularly adapted therefor, e.g. circuits for signal combination
-
- 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
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/42—Simultaneous measurement of distance and other co-ordinates
- G01S13/44—Monopulse radar, i.e. simultaneous lobing
- G01S13/4481—Monopulse hybrid systems, e.g. conopulse
-
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/14—Systems for determining direction or deviation from predetermined direction
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB431374A GB1472893A (en) | 1974-01-30 | 1974-01-30 | Directional antenna systems |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2259452A1 true FR2259452A1 (xx) | 1975-08-22 |
FR2259452B1 FR2259452B1 (xx) | 1982-10-29 |
Family
ID=9774819
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7502547A Expired FR2259452B1 (xx) | 1974-01-30 | 1975-01-28 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE825015A (xx) |
DE (1) | DE2460624C2 (xx) |
FR (1) | FR2259452B1 (xx) |
GB (1) | GB1472893A (xx) |
IT (1) | IT1031181B (xx) |
LU (1) | LU71736A1 (xx) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5175556A (en) * | 1991-06-07 | 1992-12-29 | General Electric Company | Spacecraft antenna pattern control system |
ES2842198T3 (es) * | 2016-04-20 | 2021-07-13 | Rohde & Schwarz | Módulo de antena direccional |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3680143A (en) * | 1970-07-01 | 1972-07-25 | Hughes Aircraft Co | Shaped beam antenna |
-
1974
- 1974-01-30 GB GB431374A patent/GB1472893A/en not_active Expired
- 1974-12-20 DE DE19742460624 patent/DE2460624C2/de not_active Expired
-
1975
- 1975-01-28 FR FR7502547A patent/FR2259452B1/fr not_active Expired
- 1975-01-28 LU LU71736A patent/LU71736A1/xx unknown
- 1975-01-28 IT IT1964975A patent/IT1031181B/it active
- 1975-01-30 BE BE152909A patent/BE825015A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
IT1031181B (it) | 1979-04-30 |
LU71736A1 (xx) | 1976-08-19 |
DE2460624C2 (de) | 1982-08-19 |
BE825015A (fr) | 1975-07-30 |
GB1472893A (en) | 1977-05-11 |
FR2259452B1 (xx) | 1982-10-29 |
DE2460624A1 (de) | 1975-09-25 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |