NL251575A - - Google Patents
Info
- Publication number
- NL251575A NL251575A NL251575DA NL251575A NL 251575 A NL251575 A NL 251575A NL 251575D A NL251575D A NL 251575DA NL 251575 A NL251575 A NL 251575A
- 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
- H01Q19/185—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 wherein the surfaces are plane
-
- 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
- H01Q19/28—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 a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—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 a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US812565A US3122745A (en) | 1959-05-11 | 1959-05-11 | Reflection antenna employing multiple director elements and multiple reflection of energy to effect increased gain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL251575A true NL251575A (da) | 1964-02-25 |
Family
ID=25209985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL251575D NL251575A (da) | 1959-05-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3122745A (da) |
| DE (1) | DE1167920B (da) |
| GB (1) | GB938572A (da) |
| NL (1) | NL251575A (da) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774223A (en) * | 1972-10-04 | 1973-11-20 | Us Air Force | High-frequency waveguide feed in combination with a short-backfire antenna |
| US5600339A (en) * | 1994-12-06 | 1997-02-04 | Oros; Edward A. | Antenna |
| US8368608B2 (en) * | 2008-04-28 | 2013-02-05 | Harris Corporation | Circularly polarized loop reflector antenna and associated methods |
| JPWO2014196143A1 (ja) * | 2013-06-04 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | 無線モジュール |
| JPWO2021157303A1 (da) * | 2020-02-03 | 2021-08-12 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627028A (en) * | 1945-07-03 | 1953-01-27 | Welville B Nowak | Antenna system |
| US2841792A (en) * | 1951-12-29 | 1958-07-01 | Bell Telephone Labor Inc | Directional array employing laminated conductor |
| GB741897A (en) * | 1953-06-17 | 1955-12-14 | Marconi Wireless Telegraph Co | Improvements in or relating to directional aerial systems |
| BE544068A (da) * | 1954-12-31 |
-
0
- NL NL251575D patent/NL251575A/xx unknown
-
1959
- 1959-05-11 US US812565A patent/US3122745A/en not_active Expired - Lifetime
-
1960
- 1960-05-11 GB GB16689/60A patent/GB938572A/en not_active Expired
- 1960-05-12 DE DE1960K0040687 patent/DE1167920B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB938572A (en) | 1963-10-02 |
| US3122745A (en) | 1964-02-25 |
| DE1167920B (de) | 1964-04-16 |