NL47992C - - Google Patents
Info
- Publication number
- NL47992C NL47992C NL47992DA NL47992C NL 47992 C NL47992 C NL 47992C NL 47992D A NL47992D A NL 47992DA NL 47992 C NL47992 C NL 47992C
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US100287A US2169553A (en) | 1936-09-11 | 1936-09-11 | Directive radio system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL47992C true NL47992C (fr) |
Family
ID=22279021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL47992D NL47992C (fr) | 1936-09-11 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US2169553A (fr) |
| GB (1) | GB483797A (fr) |
| NL (1) | NL47992C (fr) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760335C (de) * | 1940-08-27 | 1957-06-06 | Telefunken Gmbh | Strahleranordnung fuer ultrakurze Wellen |
| US2606318A (en) * | 1944-04-19 | 1952-08-05 | Leland J Haworth | Radar system having spiral and conical scanning antenna and tridimensional indicator |
| FR937854A (fr) * | 1946-01-22 | 1948-09-23 | ||
| US2475975A (en) * | 1946-04-15 | 1949-07-12 | Thomas O Mccarthy | Apparatus for direction finding |
| US2763860A (en) * | 1949-12-03 | 1956-09-18 | Csf | Hertzian optics |
| US2994870A (en) * | 1956-06-22 | 1961-08-01 | Raytheon Co | Communications links |
| US2998605A (en) * | 1957-07-09 | 1961-08-29 | Hazeltine Research Inc | Antenna system |
| US3040319A (en) * | 1958-12-09 | 1962-06-19 | Itt | Beacon antenna system |
| US3189907A (en) * | 1961-08-11 | 1965-06-15 | Lylnan F Van Buskirk | Zone plate radio transmission system |
| US3144606A (en) * | 1961-12-29 | 1964-08-11 | Itt | Passive satellite repeater system having orientation compensation means |
| US3683394A (en) * | 1970-07-09 | 1972-08-08 | Bell Telephone Labor Inc | Clutter fence for suppression of electromagnetic energy |
-
0
- NL NL47992D patent/NL47992C/xx active
-
1936
- 1936-09-11 US US100287A patent/US2169553A/en not_active Expired - Lifetime
-
1937
- 1937-08-25 GB GB23335/37A patent/GB483797A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2169553A (en) | 1939-08-15 |
| GB483797A (en) | 1938-04-26 |