| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1160061ACH391803A (en) | 1961-10-06 | 1961-10-06 | Axially backward radiating helical antenna |
| DE19611166297DDE1166297B (en) | 1961-10-06 | 1961-10-27 | Axially radiating helical antenna |
| US225249AUS3184747A (en) | 1961-10-06 | 1962-09-21 | Coaxial fed helical antenna with director disk between feed and helix producing endfire radiation towards the disk |
| FR42929AFR1335403A (en) | 1961-10-06 | 1962-10-04 | Helical antenna radiating axially backwards |
| GB37518/62AGB1012738A (en) | 1961-10-06 | 1962-10-04 | Helical aerials |
| SE10646/62ASE320421B (en) | 1961-10-06 | 1962-10-04 | |
| NL283937DNL283937A (en) | 1961-10-06 | 1962-10-04 |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1160061ACH391803A (en) | 1961-10-06 | 1961-10-06 | Axially backward radiating helical antenna |
| Publication Number | Publication Date |
|---|---|
| CH391803Atrue CH391803A (en) | 1965-05-15 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1160061ACH391803A (en) | 1961-10-06 | 1961-10-06 | Axially backward radiating helical antenna |
| 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) |
| 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 |
| US4435716A (en) | 1981-09-14 | 1984-03-06 | Adrian Zandbergen | Method of making a conical spiral 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 |
| KR100300937B1 (en) | 1992-12-30 | 2001-10-22 | 똥송 멀티메디아 에스. 에이. | Spiral antenna device |
| 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 |
| KR20150104614A (en) | 2013-01-09 | 2015-09-15 | 트라네 앤드 트라네 아/에스 | 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 |
| US10333593B2 (en)* | 2016-05-02 | 2019-06-25 | Amir Keyvan Khandani | Systems and methods of antenna design for full-duplex line of sight transmission |
| 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 |
| US11057204B2 (en) | 2017-10-04 | 2021-07-06 | Amir Keyvan Khandani | Methods for encrypted data communications |
| US11012144B2 (en) | 2018-01-16 | 2021-05-18 | Amir Keyvan Khandani | System and methods for in-band relaying |
| 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 |
| Publication number | Publication date |
|---|---|
| US3184747A (en) | 1965-05-18 |
| GB1012738A (en) | 1965-12-08 |
| DE1166297B (en) | 1964-03-26 |
| FR1335403A (en) | 1963-08-16 |
| SE320421B (en) | 1970-02-09 |
| NL283937A (en) | 1965-01-11 |
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