BE565581A - - Google Patents
Info
- Publication number
- BE565581A BE565581A BE565581DA BE565581A BE 565581 A BE565581 A BE 565581A BE 565581D A BE565581D A BE 565581DA BE 565581 A BE565581 A BE 565581A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- 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 (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB345045X | 1957-01-23 | ||
| GB151057X | 1957-10-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE565581A true BE565581A (un) |
Family
ID=26251057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE565581D BE565581A (un) | 1957-01-23 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE565581A (un) |
| CH (1) | CH345045A (un) |
-
0
- BE BE565581D patent/BE565581A/xx unknown
-
1957
- 1957-12-18 CH CH345045D patent/CH345045A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH345045A (fr) | 1960-03-15 |