NL38496C - - Google Patents
Info
- Publication number
- NL38496C NL38496C NL38496DA NL38496C NL 38496 C NL38496 C NL 38496C NL 38496D A NL38496D A NL 38496DA NL 38496 C NL38496 C NL 38496C
- 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
- H01Q19/12—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 wherein the surfaces are concave
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE408837X | 1932-07-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL38496C true NL38496C (sv) |
Family
ID=6422339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL38496D NL38496C (sv) | 1932-07-06 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2054895A (sv) |
| FR (1) | FR757299A (sv) |
| GB (1) | GB408837A (sv) |
| NL (1) | NL38496C (sv) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL72107C (sv) * | 1940-02-29 | |||
| US2438343A (en) * | 1942-07-09 | 1948-03-23 | Westinghouse Electric Corp | High-frequency radiation system |
| US2702858A (en) * | 1945-09-19 | 1955-02-22 | Foster John Stuart | Rear paraboloid feed for round guide |
| US3009154A (en) * | 1957-09-05 | 1961-11-14 | Philco Corp | Directive antenna system |
-
0
- NL NL38496D patent/NL38496C/xx active
-
1933
- 1933-06-21 FR FR757299D patent/FR757299A/fr not_active Expired
- 1933-06-26 US US677733A patent/US2054895A/en not_active Expired - Lifetime
- 1933-06-27 GB GB18295/33A patent/GB408837A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR757299A (fr) | 1933-12-22 |
| GB408837A (en) | 1934-04-19 |
| US2054895A (en) | 1936-09-22 |