FR57659E - Systèmes d'antennes dirigés - Google Patents
Systèmes d'antennes dirigésInfo
- Publication number
- FR57659E FR57659E FR57659DA FR57659E FR 57659 E FR57659 E FR 57659E FR 57659D A FR57659D A FR 57659DA FR 57659 E FR57659 E FR 57659E
- Authority
- FR
- France
- Prior art keywords
- antenna systems
- directed antenna
- directed
- systems
- 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.)
- Expired
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
- H01Q21/08—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a rectilinear path
- H01Q21/12—Parallel arrangements of substantially straight elongated conductive units
-
- 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
-
- 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
- G01S3/04—Details
- G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US953446XA | 1942-03-12 | 1942-03-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR57659E true FR57659E (fr) | 1953-05-04 |
Family
ID=22251479
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR953446D Expired FR953446A (fr) | 1942-03-12 | 1947-08-05 | Systèmes d'antennes dirigés |
FR57659D Expired FR57659E (fr) | 1942-03-12 | 1947-08-05 | Systèmes d'antennes dirigés |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR953446D Expired FR953446A (fr) | 1942-03-12 | 1947-08-05 | Systèmes d'antennes dirigés |
Country Status (2)
Country | Link |
---|---|
BE (2) | BE474793A (fr) |
FR (2) | FR953446A (fr) |
-
0
- BE BE474589D patent/BE474589A/fr unknown
- BE BE474793D patent/BE474793A/xx unknown
-
1947
- 1947-08-05 FR FR953446D patent/FR953446A/fr not_active Expired
- 1947-08-05 FR FR57659D patent/FR57659E/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE474589A (fr) | |
FR953446A (fr) | 1949-12-06 |
BE474793A (fr) |
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