BE472523A - - Google Patents
Info
- Publication number
- BE472523A BE472523A BE472523DA BE472523A BE 472523 A BE472523 A BE 472523A BE 472523D A BE472523D A BE 472523DA BE 472523 A BE472523 A BE 472523A
- Authority
- BE
- Belgium
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
-
- 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 |
|---|---|---|---|
| US381955A US2383489A (en) | 1941-03-06 | 1941-03-06 | Method and means for controlling horizontal patterns for glide paths |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE472523A true BE472523A (fr) |
Family
ID=23506991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE472523D BE472523A (fr) | 1941-03-06 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2383489A (fr) |
| BE (1) | BE472523A (fr) |
| FR (1) | FR938211A (fr) |
-
0
- BE BE472523D patent/BE472523A/xx unknown
-
1941
- 1941-03-06 US US381955A patent/US2383489A/en not_active Expired - Lifetime
-
1946
- 1946-04-01 FR FR938211D patent/FR938211A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2383489A (en) | 1945-08-28 |
| FR938211A (fr) | 1948-09-08 |