NL252416A - - Google Patents
Info
- Publication number
- NL252416A NL252416A NL252416DA NL252416A NL 252416 A NL252416 A NL 252416A NL 252416D A NL252416D A NL 252416DA NL 252416 A NL252416 A NL 252416A
- 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
- H01Q19/28—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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/10—Logperiodic antennas
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB19515/59A GB884889A (en) | 1959-06-08 | 1959-06-08 | Improvements in or relating to aerial systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL252416A true NL252416A (https=) |
Family
ID=10130686
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL113848D NL113848C (https=) | 1959-06-08 | ||
| NL252416D NL252416A (https=) | 1959-06-08 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL113848D NL113848C (https=) | 1959-06-08 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3221332A (https=) |
| DE (1) | DE1616745B1 (https=) |
| GB (1) | GB884889A (https=) |
| NL (2) | NL252416A (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3179943A (en) * | 1962-02-12 | 1965-04-20 | James M Buzbee | Log periodic monopole array and image ground plane elements alternately connected toplural feed lines |
| US3371196A (en) * | 1963-05-01 | 1968-02-27 | Seismograph Service Corp | Apparatus for the correlation of two variables |
| US3482250A (en) * | 1966-10-06 | 1969-12-02 | Viewall Television Products Co | Dipole antenna array having equally spaced dipoles of decreasing lengths |
| US3550140A (en) * | 1967-06-23 | 1970-12-22 | Granger Associates | Log periodic rotating antenna |
| US3683390A (en) * | 1971-04-26 | 1972-08-08 | Collins Radio Co | Hf broadband omnidirectional antenna |
| US3790950A (en) * | 1971-09-13 | 1974-02-05 | Scientific Atlanta | Antenna array for minimizing co-channel interference |
| US4180817A (en) * | 1976-05-04 | 1979-12-25 | Ball Corporation | Serially connected microstrip antenna array |
| US4733243A (en) * | 1986-12-18 | 1988-03-22 | The United States Of America As Represented By The Secretary Of The Army | Broadband high frequency sky-wave antenna |
| CN104157962B (zh) * | 2014-08-12 | 2018-06-19 | 上海航天电子通讯设备研究所 | 一种超宽带小型化波束赋形天线 |
| CN119093016B (zh) * | 2024-08-30 | 2026-02-03 | 安徽大学 | 一种基于辐射振子旋转的圆极化对数周期天线 |
| CN119133863A (zh) * | 2024-09-19 | 2024-12-13 | 安徽大学 | 双螺旋交叉馈电圆极化对数周期天线结构 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1937748A (en) * | 1931-07-10 | 1933-12-05 | Int Communications Lab Inc | Short wave radio beacon |
| GB408473A (en) * | 1932-06-24 | 1934-04-12 | Nicolaas Koomans | Improvements in or relating to uni-laterally directed aerials |
| US2192532A (en) * | 1936-02-03 | 1940-03-05 | Rca Corp | Directive antenna |
| US2298449A (en) * | 1941-11-08 | 1942-10-13 | Bell Telephone Labor Inc | Antenna |
| US2429629A (en) * | 1942-12-16 | 1947-10-28 | Standard Telephones Cables Ltd | Antenna array |
-
0
- NL NL113848D patent/NL113848C/xx active
- NL NL252416D patent/NL252416A/xx unknown
-
1959
- 1959-06-08 GB GB19515/59A patent/GB884889A/en not_active Expired
-
1960
- 1960-04-29 US US25622A patent/US3221332A/en not_active Expired - Lifetime
- 1960-06-03 DE DE1960M0045521 patent/DE1616745B1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| GB884889A (en) | 1961-12-20 |
| US3221332A (en) | 1965-11-30 |
| DE1616745B1 (de) | 1973-02-01 |
| NL113848C (https=) |