BE474201A - - Google Patents
Info
- Publication number
- BE474201A BE474201A BE474201DA BE474201A BE 474201 A BE474201 A BE 474201A BE 474201D A BE474201D A BE 474201DA BE 474201 A BE474201 A BE 474201A
- 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
- H01Q21/22—Antenna units of the array energised non-uniformly in amplitude or phase, e.g. tapered array or binomial array
-
- 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 |
|---|---|---|---|
| US272118XA | 1943-11-15 | 1943-11-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE474201A true BE474201A (xx) |
Family
ID=21836364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE474201D BE474201A (xx) | 1943-11-15 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE474201A (xx) |
| CH (1) | CH272118A (xx) |
| DE (1) | DE874801C (xx) |
| GB (1) | GB596391A (xx) |
-
0
- BE BE474201D patent/BE474201A/xx unknown
-
1945
- 1945-01-12 GB GB1062/45A patent/GB596391A/en not_active Expired
-
1947
- 1947-09-25 CH CH272118D patent/CH272118A/fr unknown
-
1950
- 1950-10-01 DE DEF4309A patent/DE874801C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB596391A (en) | 1948-01-02 |
| CH272118A (fr) | 1950-11-30 |
| DE874801C (de) | 1953-04-27 |