FR57885E - Perfectionnements aux systèmes d'antennes - Google Patents
Perfectionnements aux systèmes d'antennesInfo
- Publication number
- FR57885E FR57885E FR57885DA FR57885E FR 57885 E FR57885 E FR 57885E FR 57885D A FR57885D A FR 57885DA FR 57885 E FR57885 E FR 57885E
- Authority
- FR
- France
- Prior art keywords
- antenna systems
- antenna
- systems
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/12—Refracting or diffracting devices, e.g. lens, prism functioning also as polarisation filter
-
- 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
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR57885T | 1947-12-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR57885E true FR57885E (fr) | 1953-09-18 |
Family
ID=8691855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR57885D Expired FR57885E (fr) | 1947-12-20 | 1947-12-20 | Perfectionnements aux systèmes d'antennes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR57885E (fr) |
-
1947
- 1947-12-20 FR FR57885D patent/FR57885E/fr not_active Expired
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