NL6514976A - - Google Patents
Info
- Publication number
- NL6514976A NL6514976A NL6514976A NL6514976A NL6514976A NL 6514976 A NL6514976 A NL 6514976A NL 6514976 A NL6514976 A NL 6514976A NL 6514976 A NL6514976 A NL 6514976A NL 6514976 A NL6514976 A NL 6514976A
- Authority
- NL
- Netherlands
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
- H01Q25/04—Multimode antennas
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/01—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the shape of the antenna or antenna system
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Waveguide Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR995801A FR1423109A (fr) | 1964-11-20 | 1964-11-20 | Perfectionnements aux dispositifs de poursuite automatique pour antennes à hyperfréquences |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL6514976A true NL6514976A (de) | 1966-05-23 |
Family
ID=8843030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6514976A NL6514976A (de) | 1964-11-20 | 1965-11-18 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE672379A (de) |
| DE (1) | DE1280991B (de) |
| GB (1) | GB1115660A (de) |
| NL (1) | NL6514976A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2804132C2 (de) * | 1978-01-31 | 1986-09-04 | Siemens AG, 1000 Berlin und 8000 München | Wellentypenweiche |
| GB2163909B (en) * | 1984-08-29 | 1987-11-04 | Era Patents Ltd | Beacon tracking system |
-
1965
- 1965-11-09 DE DE1965C0037354 patent/DE1280991B/de active Pending
- 1965-11-16 BE BE672379A patent/BE672379A/xx not_active Expired
- 1965-11-18 NL NL6514976A patent/NL6514976A/xx unknown
- 1965-11-22 GB GB4955365A patent/GB1115660A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE672379A (de) | 1966-05-16 |
| DE1280991B (de) | 1968-10-24 |
| GB1115660A (en) | 1968-05-29 |