NL283937A - - Google Patents
Info
- Publication number
- NL283937A NL283937A NL283937DA NL283937A NL 283937 A NL283937 A NL 283937A NL 283937D A NL283937D A NL 283937DA NL 283937 A NL283937 A NL 283937A
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- H01Q11/08—Helical antennas
-
- 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
- H01Q19/15—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 being a line source, e.g. leaky waveguide antennas
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1160061A CH391803A (en) | 1961-10-06 | 1961-10-06 | Axially backward radiating helical antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL283937A true NL283937A (en) | 1965-01-11 |
Family
ID=4375048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL283937D NL283937A (en) | 1961-10-06 | 1962-10-04 |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US3184747A (en) |
| CH (1) | CH391803A (en) |
| DE (1) | DE1166297B (en) |
| FR (1) | FR1335403A (en) |
| GB (1) | GB1012738A (en) |
| NL (1) | NL283937A (en) |
| SE (1) | SE320421B (en) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3568205A (en) * | 1968-02-12 | 1971-03-02 | Goodyear Aerospace Corp | Novel helical antenna |
| US3623118A (en) * | 1969-07-01 | 1971-11-23 | Raytheon Co | Waveguide-fed helical antenna |
| DE3343625C2 (en) * | 1983-11-19 | 1986-10-23 | Bruker Medizintechnik Gmbh, 7512 Rheinstetten | Measuring head and method for recording high-resolution nuclear magnetic resonance signals |
| CA1257694A (en) * | 1985-08-05 | 1989-07-18 | Hisamatsu Nakano | Antenna system |
| US5212493A (en) * | 1989-02-17 | 1993-05-18 | Thomson-Lgt Laboratoire General Des Telecomm. | Antenna system for reception from direct broadcasting satellites |
| FR2653941B1 (en) * | 1989-10-31 | 1992-02-28 | Thomson Lgt | MULTIFOCAL RECEPTION ANTENNA WITH SINGLE POINT DIRECTION FOR MULTIPLE SATELLITES. |
| FR2678437B1 (en) * | 1991-06-28 | 1994-01-28 | France Telecom | MIXED ANTENNA FOR RECEIVING SIGNALS TRANSMITTED SIMULTANEOUSLY BY SATELLITE AND EARTH STATIONS, PARTICULARLY FOR RECEIVING DIGITAL SOUND BROADCASTING SIGNALS. |
| DE69320313T2 (en) * | 1992-12-22 | 1998-12-24 | Thomson Multimedia, Boulogne, Cedex | Antenna system with spiral antennas |
| CA2139198C (en) * | 1993-12-28 | 1998-08-18 | Norihiko Ohmuro | Broad conical-mode helical antenna |
| DE4443055B4 (en) * | 1994-12-05 | 2011-07-21 | VEGA Grieshaber KG, 77709 | Antenna device for a level-measuring radar device |
| US6791500B2 (en) * | 2002-12-12 | 2004-09-14 | Research In Motion Limited | Antenna with near-field radiation control |
| US7388559B1 (en) * | 2006-12-21 | 2008-06-17 | The Boeing Company | Reflector antenna |
| WO2013173250A1 (en) | 2012-05-13 | 2013-11-21 | Invention Mine Llc | Full duplex wireless transmission with self-interference cancellation |
| WO2014108176A1 (en) | 2013-01-09 | 2014-07-17 | Thrane & Thrane A/S | A dual antenna |
| US10177896B2 (en) | 2013-05-13 | 2019-01-08 | Amir Keyvan Khandani | Methods for training of full-duplex wireless systems |
| US9236996B2 (en) | 2013-11-30 | 2016-01-12 | Amir Keyvan Khandani | Wireless full-duplex system and method using sideband test signals |
| US9820311B2 (en) | 2014-01-30 | 2017-11-14 | Amir Keyvan Khandani | Adapter and associated method for full-duplex wireless communication |
| US10312595B2 (en) * | 2016-01-18 | 2019-06-04 | The Johns Hopkins University | Contrawound helical antenna apparatus and method |
| US10778295B2 (en) | 2016-05-02 | 2020-09-15 | Amir Keyvan Khandani | Instantaneous beamforming exploiting user physical signatures |
| CN106252851B (en) * | 2016-09-12 | 2023-03-24 | 广东通宇通讯股份有限公司 | High-gain broadband element antenna |
| US10700766B2 (en) | 2017-04-19 | 2020-06-30 | Amir Keyvan Khandani | Noise cancelling amplify-and-forward (in-band) relay with self-interference cancellation |
| US11212089B2 (en) | 2017-10-04 | 2021-12-28 | Amir Keyvan Khandani | Methods for secure data storage |
| US11012144B2 (en) | 2018-01-16 | 2021-05-18 | Amir Keyvan Khandani | System and methods for in-band relaying |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA562302A (en) * | 1958-08-26 | Canadian Marconi Company | Helically fed direction or aerial system | |
| GB741897A (en) * | 1953-06-17 | 1955-12-14 | Marconi Wireless Telegraph Co | Improvements in or relating to directional aerial systems |
| BE538147A (en) * | 1954-05-28 | |||
| US2919442A (en) * | 1955-12-09 | 1959-12-29 | American Electronics | Antenna |
| US2982964A (en) * | 1957-03-26 | 1961-05-02 | Internat Telephone & Telegraph | Adjustable tuning device and antenna using same |
-
1961
- 1961-10-06 CH CH1160061A patent/CH391803A/en unknown
- 1961-10-27 DE DE19611166297D patent/DE1166297B/en active Pending
-
1962
- 1962-09-21 US US225249A patent/US3184747A/en not_active Expired - Lifetime
- 1962-10-04 NL NL283937D patent/NL283937A/xx unknown
- 1962-10-04 GB GB37518/62A patent/GB1012738A/en not_active Expired
- 1962-10-04 FR FR42929A patent/FR1335403A/en not_active Expired
- 1962-10-04 SE SE10646/62A patent/SE320421B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR1335403A (en) | 1963-08-16 |
| GB1012738A (en) | 1965-12-08 |
| SE320421B (en) | 1970-02-09 |
| US3184747A (en) | 1965-05-18 |
| DE1166297B (en) | 1964-03-26 |
| CH391803A (en) | 1965-05-15 |