FR2067368B1 - - Google Patents
Info
- Publication number
- FR2067368B1 FR2067368B1 FR7041436A FR7041436A FR2067368B1 FR 2067368 B1 FR2067368 B1 FR 2067368B1 FR 7041436 A FR7041436 A FR 7041436A FR 7041436 A FR7041436 A FR 7041436A FR 2067368 B1 FR2067368 B1 FR 2067368B1
- Authority
- FR
- France
- 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
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
- H01Q21/205—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path providing an omnidirectional coverage
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/12—Means for determining sense of direction, e.g. by combining signals from directional antenna or goniometer search coil with those from non-directional antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/20—Arrays of individually energised antenna units similarly polarised and spaced apart the units being spaced along or adjacent to a curvilinear path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/44—Resonant antennas with a plurality of divergent straight elements, e.g. V-dipole, X-antenna; with a plurality of elements having mutually inclined substantially straight portions
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691957787 DE1957787C (en) | 1969-11-18 | Shortwave antenna arrangement for obtaining a round voltage in direction finding systems, in particular ship direction finding systems |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2067368A1 FR2067368A1 (en) | 1971-08-20 |
FR2067368B1 true FR2067368B1 (en) | 1979-08-17 |
Family
ID=5751367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7041436A Expired FR2067368B1 (en) | 1969-11-18 | 1970-11-18 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3691561A (en) |
FR (1) | FR2067368B1 (en) |
GB (1) | GB1318064A (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4588993A (en) * | 1980-11-26 | 1986-05-13 | The United States Of America As Represented By The Secretary Of The Department Of Health And Human Services | Broadband isotropic probe system for simultaneous measurement of complex E- and H-fields |
US4598296A (en) * | 1984-07-31 | 1986-07-01 | Chu Associates, Inc. | Dipole antenna system with overhead coverage having equidirectional-linear polarization |
GB2191043A (en) * | 1986-05-28 | 1987-12-02 | Gen Electric Co Plc | Dipole array |
US5038151A (en) * | 1989-07-31 | 1991-08-06 | Loral Aerospace Corp. | Simultaneous transmit and receive antenna |
US5523767A (en) * | 1993-02-17 | 1996-06-04 | The United States Of America As Represented By The Secretary Of The Army | Wideband dual-polarized tilted dipole antenna |
US5959548A (en) * | 1997-10-31 | 1999-09-28 | Halliburton Energy Services, Inc. | Electromagnetic signal pickup device |
FR2802711B1 (en) * | 1999-12-20 | 2003-04-04 | Univ Rennes | METHOD FOR DECOUPLING ANTENNAS WITHIN A CO-LOCALIZED ANTENNA SYSTEM, SENSOR AND APPLICATIONS THEREOF |
US6480168B1 (en) | 2000-09-19 | 2002-11-12 | Lockheed Martin Corporation | Compact multi-band direction-finding antenna system |
IL256632B (en) * | 2017-12-27 | 2022-05-01 | Elta Systems Ltd | Direction finder antenna system |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE420226A (en) * | 1936-02-26 | |||
US2175252A (en) * | 1937-06-12 | 1939-10-10 | Rca Corp | Short wave antenna |
US2440597A (en) * | 1945-02-10 | 1948-04-27 | Du Mont Allen B Lab Inc | Television receiver antenna |
US2964747A (en) * | 1958-07-21 | 1960-12-13 | Radiation Inc | Vee antenna |
US2968038A (en) * | 1959-02-19 | 1961-01-10 | Hauptschein Arthur | Multiband tail-cap antenna |
US3159838A (en) * | 1962-01-19 | 1964-12-01 | Aero Geo Astro Corp | Vertically stacked hollow dipoles conductively supported on a mast |
US3262121A (en) * | 1963-05-06 | 1966-07-19 | Collins Radio Co | Antenna feed point crossover |
US3371347A (en) * | 1966-04-06 | 1968-02-27 | Control Data Corp | Direction finding antenna system |
US3521286A (en) * | 1967-04-21 | 1970-07-21 | Gen Dynamics Corp | Orthogonal array antenna system |
-
1970
- 1970-08-11 GB GB3856970A patent/GB1318064A/en not_active Expired
- 1970-11-18 US US90616A patent/US3691561A/en not_active Expired - Lifetime
- 1970-11-18 FR FR7041436A patent/FR2067368B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1957787A1 (en) | 1971-05-19 |
DE1957787B2 (en) | 1971-11-04 |
GB1318064A (en) | 1973-05-23 |
US3691561A (en) | 1972-09-12 |
FR2067368A1 (en) | 1971-08-20 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
DL | Decision of the director general to leave to make available licences of right | ||
ST | Notification of lapse |