NL42962C - - Google Patents
Info
- Publication number
- NL42962C NL42962C NL42962DA NL42962C NL 42962 C NL42962 C NL 42962C NL 42962D A NL42962D A NL 42962DA NL 42962 C NL42962 C NL 42962C
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE410336X | 1932-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL42962C true NL42962C (fr) |
Family
ID=6424375
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL42962D NL42962C (fr) | 1932-07-08 | ||
| NL39333D NL39333C (fr) | 1932-07-08 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL39333D NL39333C (fr) | 1932-07-08 |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR757420A (fr) |
| GB (1) | GB410336A (fr) |
| NL (2) | NL39333C (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE754559C (de) * | 1934-04-14 | 1953-08-31 | Julius Pintsch K G | Anordnung zum gerichteten Senden oder Empfangen ultra-hochfrequenter elektromagnetischer Schwingungen |
| FR971483A (fr) * | 1940-06-15 | 1951-01-17 | Csf | Perfectionnements aux radiateurs d'ondes radioélectriques |
| US2607010A (en) * | 1945-04-23 | 1952-08-12 | Bell Telephone Labor Inc | Wave guide antenna system |
| US2579140A (en) * | 1946-03-13 | 1951-12-18 | Crawford Walter Freeman | Wave projector |
| US2922160A (en) * | 1950-04-27 | 1960-01-19 | Lester C Van Atta | Split paraboloidal reflector |
-
0
- NL NL42962D patent/NL42962C/xx active
- NL NL39333D patent/NL39333C/xx active
-
1933
- 1933-06-23 FR FR757420D patent/FR757420A/fr not_active Expired
- 1933-06-27 GB GB18334/33A patent/GB410336A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB410336A (en) | 1934-05-17 |
| FR757420A (fr) | 1933-12-26 |
| NL39333C (fr) |