BE381315A - - Google Patents
Info
- Publication number
- BE381315A BE381315A BE381315DA BE381315A BE 381315 A BE381315 A BE 381315A BE 381315D A BE381315D A BE 381315DA BE 381315 A BE381315 A BE 381315A
- Authority
- BE
- Belgium
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
- H01Q19/17—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 the primary radiating source comprising two or more radiating elements
- H01Q19/175—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 the primary radiating source comprising two or more radiating elements arrayed along the focal line of a cylindrical focusing surface
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US469415A US1874983A (en) | 1930-07-21 | 1930-07-21 | Ultra short wave antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE381315A true BE381315A (zh) |
Family
ID=23863698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE381315D BE381315A (zh) | 1930-07-21 |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US1874983A (zh) |
| BE (1) | BE381315A (zh) |
Families Citing this family (11)
| 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 |
| US2460286A (en) * | 1938-01-17 | 1949-02-01 | Univ Leland Stanford Junior | Radiating electromagnetic resonator |
| BE468393A (zh) * | 1945-01-24 | |||
| GB619868A (en) * | 1946-03-19 | 1949-03-16 | Noel Meyer Rust | Improvements in or relating to aerial arrays and feeder arrangements for use therewith |
| US2622198A (en) * | 1950-08-23 | 1952-12-16 | Philco Corp | Phased antenna array |
| US2750589A (en) * | 1952-09-20 | 1956-06-12 | Edward F Harris | Vertically polarized high frequency antenna array |
| US3680147A (en) * | 1970-08-30 | 1972-07-25 | Robert W Redlich | Colinear antenna apparatus |
| US3757343A (en) * | 1970-10-12 | 1973-09-04 | Ampex | Slot antenna array |
| US3879719A (en) * | 1973-05-21 | 1975-04-22 | Shorrock Developments Limited | Flat beam intruder detection device |
| US4031537A (en) * | 1974-10-23 | 1977-06-21 | Andrew Alford | Collinear dipole array with reflector |
| BG45028A1 (zh) * | 1987-03-12 | 1989-03-15 | Mircho S Tabakov |
-
0
- BE BE381315D patent/BE381315A/xx unknown
-
1930
- 1930-07-21 US US469415A patent/US1874983A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1874983A (en) | 1932-08-30 |