BE569719A - - Google Patents
Info
- Publication number
- BE569719A BE569719A BE569719DA BE569719A BE 569719 A BE569719 A BE 569719A BE 569719D A BE569719D A BE 569719DA BE 569719 A BE569719 A BE 569719A
- Authority
- BE
- Belgium
Links
Classifications
-
- 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
- H01Q3/16—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 relative position of primary active element and a reflecting device
- H01Q3/18—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 relative position of primary active element and a reflecting device wherein the primary active element is movable and the reflecting device is fixed
-
- 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
- H01Q3/02—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 movement of antenna or antenna system as a whole
-
- 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
- H01Q3/16—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 relative position of primary active element and a reflecting device
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR744264A FR1253818A (fr) | 1957-07-26 | 1957-07-26 | Procédé de réduction des aberrations dans les antennes hyperfréquences à balayage de grande ouverture angulaire et antenne en résultant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE569719A true BE569719A (de) |
Family
ID=8704650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE569719D BE569719A (de) | 1957-07-26 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3112483A (de) |
| BE (1) | BE569719A (de) |
| DE (1) | DE974843C (de) |
| FR (1) | FR1253818A (de) |
| GB (1) | GB878466A (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2525823A1 (fr) * | 1982-04-27 | 1983-10-28 | Thomson Csf | Dispositif d'excitation d'une source rainuree hyperfrequence bi-bande |
| GB2132026A (en) * | 1982-12-03 | 1984-06-27 | Mcmichael Ltd | Antenna systems |
| GB2287835B (en) * | 1994-03-18 | 1998-08-12 | Marconi Gec Ltd | Antenna reflector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1906546A (en) * | 1931-07-10 | 1933-05-02 | Int Communications Lab Inc | Echelon grating for reflecting ultra short waves |
| US2639384A (en) * | 1948-12-04 | 1953-05-19 | Coligny Guerric De Pillot De | Method and device for focusing of radiations by means of stationary reflector and refractor gratings |
| NL146717B (nl) * | 1948-12-29 | Chem Processes Inc | Inrichting voor het uitvoeren van een exothermegasreactie met katalysatorbedden en een warmtewisselaar. |
-
0
- BE BE569719D patent/BE569719A/xx unknown
-
1957
- 1957-07-26 FR FR744264A patent/FR1253818A/fr not_active Expired
-
1958
- 1958-07-15 US US749578A patent/US3112483A/en not_active Expired - Lifetime
- 1958-07-21 GB GB23405/58A patent/GB878466A/en not_active Expired
- 1958-07-26 DE DES59168A patent/DE974843C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1253818A (fr) | 1961-02-17 |
| US3112483A (en) | 1963-11-26 |
| GB878466A (en) | 1961-09-27 |
| DE974843C (de) | 1961-05-10 |