NL7109661A - - Google Patents
Info
- Publication number
- NL7109661A NL7109661A NL7109661A NL7109661A NL7109661A NL 7109661 A NL7109661 A NL 7109661A NL 7109661 A NL7109661 A NL 7109661A NL 7109661 A NL7109661 A NL 7109661A NL 7109661 A NL7109661 A NL 7109661A
- Authority
- NL
- Netherlands
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
- H01Q19/19—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
- H01Q19/195—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein a reflecting surface acts also as a polarisation filter or a polarising device
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3394070 | 1970-07-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7109661A true NL7109661A (enExample) | 1972-01-17 |
Family
ID=10359353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7109661A NL7109661A (enExample) | 1970-07-13 | 1971-07-13 |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH529450A (enExample) |
| DE (1) | DE2134797A1 (enExample) |
| FR (1) | FR2098372B1 (enExample) |
| GB (1) | GB1305117A (enExample) |
| NL (1) | NL7109661A (enExample) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2522888A1 (fr) * | 1982-03-02 | 1983-09-09 | Thomson Csf | Antenne a double reflecteur a transformateur de polarisation incorpore |
| FR2540296A1 (fr) * | 1983-01-31 | 1984-08-03 | Thomson Csf | Filtre spatial d'ondes electromagnetiques de polarisation circulaire et antenne cassegrain comportant un tel filtre |
| GB2234858A (en) * | 1988-09-02 | 1991-02-13 | Thorn Emi Electronics Ltd | Cassegrain antenna |
| CN106025487B (zh) * | 2016-05-06 | 2019-03-26 | 西安恒达微波技术开发有限公司 | 一种测向天线及测向天线系统 |
-
1970
- 1970-07-13 GB GB1305117D patent/GB1305117A/en not_active Expired
-
1971
- 1971-07-12 CH CH1021571A patent/CH529450A/fr not_active IP Right Cessation
- 1971-07-12 DE DE19712134797 patent/DE2134797A1/de active Pending
- 1971-07-13 FR FR7125604A patent/FR2098372B1/fr not_active Expired
- 1971-07-13 NL NL7109661A patent/NL7109661A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2134797A1 (de) | 1972-01-20 |
| CH529450A (fr) | 1972-10-15 |
| FR2098372B1 (enExample) | 1974-04-05 |
| GB1305117A (enExample) | 1973-01-31 |
| FR2098372A1 (enExample) | 1972-03-10 |