BE561152A - - Google Patents
Info
- Publication number
- BE561152A BE561152A BE561152DA BE561152A BE 561152 A BE561152 A BE 561152A BE 561152D A BE561152D A BE 561152DA BE 561152 A BE561152 A BE 561152A
- Authority
- BE
- Belgium
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
- H01Q25/004—Antennas or antenna systems providing at least two radiating patterns providing two or four symmetrical beams for Janus application
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2938456A GB813934A (en) | 1956-09-26 | Improvements in or relating to aerial systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE561152A true BE561152A (US20050065096A1-20050324-C00034.png) | 1957-10-15 |
Family
ID=10290709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE561152D BE561152A (US20050065096A1-20050324-C00034.png) | 1956-09-26 | 1957-09-26 |
Country Status (5)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1217140A (fr) * | 1958-12-01 | 1960-05-02 | Csf | Perfectionnements aux aériens rayonnant plusieurs faisceaux |
| US3005984A (en) * | 1958-12-29 | 1961-10-24 | Raytheon Co | Slotted waveguide antennas |
| GB882134A (en) * | 1959-08-25 | 1961-11-15 | Decca Record Co Ltd | Improvements in or relating to directional aerical systems |
| US3135959A (en) * | 1960-03-24 | 1964-06-02 | Decca Ltd | Doppler antenna array employing multiple slotted waveguides with feed switching |
| US3238473A (en) * | 1961-11-28 | 1966-03-01 | Microwave Dev Lab Inc | Directional coupler having plural slanted identical coupling slots of critical length |
| US3276026A (en) * | 1962-05-10 | 1966-09-27 | Lab For Electronics Inc | Doppler array with plural slotted waveguides and feed switching |
| US3150375A (en) * | 1962-07-20 | 1964-09-22 | Gen Precision Inc | Selective directional slotted waveguide antenna |
| US3183511A (en) * | 1963-03-28 | 1965-05-11 | Hughes Aircraft Co | Broadband waveguide slot radiator with mutually coupled slots of different perimeters and orientation |
| US3526898A (en) * | 1967-04-03 | 1970-09-01 | Raytheon Co | Antenna with translational and rotational compensation |
| US3521287A (en) * | 1968-11-12 | 1970-07-21 | Hughes Aircraft Co | Waveguide side wall slot radiator |
| FR2560389B1 (fr) * | 1984-02-29 | 1987-11-13 | Centre Nat Rech Scient | Dispositif micro-onde differentiel pour la mesure sans contact de la vitesse d'un vehicule terrestre |
| SE516841C2 (sv) | 2000-07-10 | 2002-03-12 | Ericsson Telefon Ab L M | Antennanordning för samtidig sändning och mottagning av mikrovåg användande slitsade vågledare |
| US7606592B2 (en) * | 2005-09-19 | 2009-10-20 | Becker Charles D | Waveguide-based wireless distribution system and method of operation |
| US20100137858A1 (en) * | 2008-12-01 | 2010-06-03 | Ams Research Corporation | Coil Guide |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2426228A (en) * | 1942-10-31 | 1947-08-26 | Mackta Leo | Speed indicator |
| GB589136A (en) * | 1943-06-05 | 1947-06-12 | Western Electric Co | Improvements in or relating to directive radio systems |
| US2605413A (en) * | 1943-11-10 | 1952-07-29 | Luis W Alvarez | Antenna system with variable directional characteristic |
| GB669516A (en) * | 1945-09-19 | 1952-04-02 | William Heriot Watson | Wave guide assemblies |
| GB696659A (en) * | 1951-04-04 | 1953-09-02 | Marconi Wireless Telegraph Co | Improvements in or relating to micro-wave aerial arrays |
| US2730717A (en) * | 1951-04-18 | 1956-01-10 | Katchky Max | Directional wave antenna for marine radar use |
-
1957
- 1957-08-19 US US678881A patent/US2932823A/en not_active Expired - Lifetime
- 1957-08-20 ES ES0237217A patent/ES237217A1/es not_active Expired
- 1957-09-10 DE DEM35290A patent/DE1222998B/de active Pending
- 1957-09-26 BE BE561152D patent/BE561152A/fr unknown
- 1957-09-26 FR FR1185484D patent/FR1185484A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2932823A (en) | 1960-04-12 |
| ES237217A1 (es) | 1958-02-16 |
| DE1222998B (de) | 1966-08-18 |
| FR1185484A (fr) | 1959-07-31 |
