FR920587A - Perfectionnements aux antennes - Google Patents
Perfectionnements aux antennesInfo
- Publication number
- FR920587A FR920587A FR920587DA FR920587A FR 920587 A FR920587 A FR 920587A FR 920587D A FR920587D A FR 920587DA FR 920587 A FR920587 A FR 920587A
- Authority
- FR
- France
- Prior art keywords
- antennas
- antennas improvements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
- H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US574879A US2465379A (en) | 1945-01-27 | 1945-01-27 | Antenna unit |
Publications (1)
Publication Number | Publication Date |
---|---|
FR920587A true FR920587A (fr) | 1947-04-11 |
Family
ID=24298024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR920587D Expired FR920587A (fr) | 1945-01-27 | 1946-01-22 | Perfectionnements aux antennes |
Country Status (3)
Country | Link |
---|---|
US (1) | US2465379A (fr) |
ES (1) | ES172124A1 (fr) |
FR (1) | FR920587A (fr) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2615134A (en) * | 1946-01-09 | 1952-10-21 | Rca Corp | Antenna |
US2539433A (en) * | 1948-03-20 | 1951-01-30 | Int Standard Electric Corp | Circularly polarized antenna |
BE488516A (fr) * | 1948-04-16 | |||
US2861266A (en) * | 1951-02-05 | 1958-11-18 | Alford Andrew | Localizer antenna system |
US2688081A (en) * | 1951-11-26 | 1954-08-31 | Rca Corp | Antenna system |
US3683389A (en) * | 1971-01-20 | 1972-08-08 | Corning Glass Works | Omnidirectional loop antenna array |
EP0184235A1 (fr) * | 1984-11-08 | 1986-06-11 | Koninklijke Philips Electronics N.V. | Antenne de radionavigation dans un système VOR |
US6437750B1 (en) * | 1999-09-09 | 2002-08-20 | University Of Kentucky Research Foundation | Electrically-small low Q radiator structure and method of producing EM waves therewith |
US7209089B2 (en) * | 2004-01-22 | 2007-04-24 | Hans Gregory Schantz | Broadband electric-magnetic antenna apparatus and method |
US6940465B2 (en) * | 2003-05-08 | 2005-09-06 | Kathrein-Werke Kg | Dual-polarized dipole antenna element |
DE102008002587A1 (de) * | 2008-06-23 | 2009-12-24 | Biotronik Crm Patent Ag | Patientengerät mit einer Antennenanordnung mit Polarisationsdiversität |
US9899746B2 (en) * | 2013-12-14 | 2018-02-20 | The Charles Stark Draper Laboratory, Inc. | Electronically steerable single helix/spiral antenna |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1841654A (en) * | 1925-10-01 | 1932-01-19 | Drahtlose Telegraphie Gmbh | Short wave transmission |
US1892221A (en) * | 1928-02-18 | 1932-12-27 | Telefunken Gmbh | Polarization diversity reception |
US2210066A (en) * | 1936-07-10 | 1940-08-06 | Emi Ltd | Aerial and feeder system for use in high frequency signaling systems |
US2193859A (en) * | 1936-11-28 | 1940-03-19 | Telefunken Gmbh | Ultra short wave antenna |
US2282030A (en) * | 1937-09-17 | 1942-05-05 | Int Standard Electric Corp | System of guiding vehicles |
US2207781A (en) * | 1938-05-28 | 1940-07-16 | Rca Corp | Ultra high frequency antenna |
US2201857A (en) * | 1938-12-29 | 1940-05-21 | Gen Electric | Antenna |
NL64189C (fr) * | 1939-04-26 | |||
US2291450A (en) * | 1939-12-28 | 1942-07-28 | Hazeltine Corp | Antenna system |
US2256619A (en) * | 1940-06-01 | 1941-09-23 | Rca Corp | Directional antenna |
US2391026A (en) * | 1943-11-15 | 1945-12-18 | Standard Telephones Cables Ltd | Shielded loop antenna |
US2425585A (en) * | 1943-12-13 | 1947-08-12 | Hazeltine Research Inc | Wave-signal antenna |
-
1945
- 1945-01-27 US US574879A patent/US2465379A/en not_active Expired - Lifetime
-
1946
- 1946-01-10 ES ES0172124A patent/ES172124A1/es not_active Expired
- 1946-01-22 FR FR920587D patent/FR920587A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES172124A1 (es) | 1946-02-16 |
US2465379A (en) | 1949-03-29 |
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