BE541586A - - Google Patents
Info
- Publication number
- BE541586A BE541586A BE541586DA BE541586A BE 541586 A BE541586 A BE 541586A BE 541586D A BE541586D A BE 541586DA BE 541586 A BE541586 A BE 541586A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
- H01Q15/12—Refracting or diffracting devices, e.g. lens, prism functioning also as polarisation filter
-
- 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
- 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
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device
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 |
|---|---|---|---|
| US469185A US2760192A (en) | 1954-11-16 | 1954-11-16 | Suppression of vertically polarized radiation from an omnidirectional range antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE541586A true BE541586A (fr) |
Family
ID=23862790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE541586D BE541586A (fr) | 1954-11-16 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2760192A (fr) |
| BE (1) | BE541586A (fr) |
| FR (1) | FR1143093A (fr) |
| GB (1) | GB773297A (fr) |
| NL (2) | NL102640C (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2973514A (en) * | 1955-11-04 | 1961-02-28 | Alford Andrew | Parallel plate transmission line antenna |
| US3205499A (en) * | 1956-08-30 | 1965-09-07 | Avco Mfg Corp | Dual polarized horn antenna |
| US3031664A (en) * | 1959-10-01 | 1962-04-24 | Marconi Wireless Telegraph Co | Polarisation screen and filter for radio waves |
| NL293383A (fr) * | 1962-05-30 | |||
| US4340891A (en) * | 1978-04-26 | 1982-07-20 | Motorola, Inc. | Dual polarized base station receive antenna |
| US9698619B2 (en) * | 2011-10-04 | 2017-07-04 | Choon Sae Lee | Device for energy mining |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532919A (en) * | 1947-04-21 | 1950-12-05 | Johnson William Arthur | Radio aerial system, and particularly directive aerial system |
| US2622199A (en) * | 1948-04-16 | 1952-12-16 | Marconi Wireless Telegraph Co | Radio aerial system |
| BE513377A (fr) * | 1951-07-21 |
-
0
- NL NL200083D patent/NL200083A/xx unknown
- NL NL102640D patent/NL102640C/xx active
- BE BE541586D patent/BE541586A/xx unknown
-
1954
- 1954-11-16 US US469185A patent/US2760192A/en not_active Expired - Lifetime
-
1955
- 1955-09-26 GB GB27381/55A patent/GB773297A/en not_active Expired
- 1955-10-21 FR FR1143093D patent/FR1143093A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL200083A (fr) | |
| US2760192A (en) | 1956-08-21 |
| GB773297A (en) | 1957-04-24 |
| NL102640C (fr) | |
| FR1143093A (fr) | 1957-09-26 |