BE471723A - - Google Patents
Info
- Publication number
- BE471723A BE471723A BE471723DA BE471723A BE 471723 A BE471723 A BE 471723A BE 471723D A BE471723D A BE 471723DA BE 471723 A BE471723 A BE 471723A
- Authority
- BE
- Belgium
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
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- 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
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1455740A GB577853A (en) | 1940-09-25 | 1940-09-25 | Means for overcoming the effects of earth reflections in directional antenna systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE471723A true BE471723A (en:Method) |
Family
ID=10043382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE471723D BE471723A (en:Method) | 1940-09-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE471723A (en:Method) |
| ES (1) | ES176095A1 (en:Method) |
| FR (1) | FR931309A (en:Method) |
| GB (1) | GB577853A (en:Method) |
-
0
- BE BE471723D patent/BE471723A/xx unknown
-
1940
- 1940-09-25 GB GB1455740A patent/GB577853A/en not_active Expired
-
1946
- 1946-07-25 FR FR931309D patent/FR931309A/fr not_active Expired
- 1946-12-14 ES ES0176095A patent/ES176095A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB577853A (en) | 1946-06-04 |
| ES176095A1 (es) | 1947-01-16 |
| FR931309A (fr) | 1948-02-19 |