ES2053136T3 - Antena omnidirectiva en polarizacion circular transversal con maximo de ganancia bajo el horizonte. - Google Patents
Antena omnidirectiva en polarizacion circular transversal con maximo de ganancia bajo el horizonte.Info
- Publication number
- ES2053136T3 ES2053136T3 ES90401787T ES90401787T ES2053136T3 ES 2053136 T3 ES2053136 T3 ES 2053136T3 ES 90401787 T ES90401787 T ES 90401787T ES 90401787 T ES90401787 T ES 90401787T ES 2053136 T3 ES2053136 T3 ES 2053136T3
- Authority
- ES
- Spain
- Prior art keywords
- antennas
- antenna
- semionda
- earth
- omnidirective
- 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 - Lifetime
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
-
- 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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
ASOCIACION DE TRES ANTENAS DE DIPOLO DE SEMIONDA (A SUB 1 AS DE MANERA CONCENTRICA A UNA CUARTA ANTENA (A SUB 4) SITUADA A IGUAL DISTANCIA DE CADA UNA DE LAS TRES ANTENAS DE SEMIONDA Y EN UN PLANO PERPENDICULAR A ESTAS DE MANERA A FORMAR UNA RED DE ANTENAS ALIMENTADAS POR CORRIENTES DE FASE Y AMPLITUD IGUALES, DIAMETRO DEL CIRCULO QUE CONTIENE LOS ELEMENTOS RADIANTES DE LAS TRES ANTENAS DE SEMIONDA ES IGUAL A MEDIA LONGITUD DE ONDA LAMBDA O EN EL AIRE A LA FRECUENCIA MEDIA DE TRABAJO, ESTA DIMENSION SE PUEDE REDUCIR POR LA CONSTANTE DIELECTRICA EPSILON R CUANDO EL CONJUNTO DE LAS ANTENAS ESTA INMERSO EN UN MEDIO DIELECTRICO HOMOGENEO. APLICACION EN LAS TRANSMISIONES TOTALMENTE AZIMUT TIERRA-TIERRA O TIERRA-AIRE EN MEDIO CIRCUNDANTE PERTURBADO
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8903778A FR2644937B1 (fr) | 1989-03-22 | 1989-03-22 | Antenne omnidirective en polarisation circulaire transversale a maximum de gain sous l'horizon |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2053136T3 true ES2053136T3 (es) | 1994-07-16 |
Family
ID=9379964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES90401787T Expired - Lifetime ES2053136T3 (es) | 1989-03-22 | 1990-06-22 | Antena omnidirectiva en polarizacion circular transversal con maximo de ganancia bajo el horizonte. |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0463263B1 (es) |
DE (1) | DE69008170T2 (es) |
DK (1) | DK0463263T3 (es) |
ES (1) | ES2053136T3 (es) |
FR (1) | FR2644937B1 (es) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2676311B1 (fr) * | 1991-05-07 | 1993-11-19 | Agence Spatiale Europeenne | Antenne a polarisation circulaire. |
GB2259811B (en) * | 1991-09-21 | 1995-05-17 | Motorola Israel Ltd | An antenna |
FR2721757B1 (fr) * | 1994-06-28 | 1996-09-13 | Jac International | Antenne omnidirectionnelle en azimut et directive en site et répondeur maritime ainsi équipé. |
US7411399B2 (en) * | 2005-10-04 | 2008-08-12 | Schlumberger Technology Corporation | Electromagnetic survey system with multiple sources |
US8803749B2 (en) | 2011-03-25 | 2014-08-12 | Kwok Wa Leung | Elliptically or circularly polarized dielectric block antenna |
GB2512111B (en) | 2013-03-20 | 2017-02-15 | British Broadcasting Corp | Antenna arrangement for transmitting two or more polarisations of radio signal |
US9899746B2 (en) * | 2013-12-14 | 2018-02-20 | The Charles Stark Draper Laboratory, Inc. | Electronically steerable single helix/spiral antenna |
CN103822973A (zh) * | 2014-02-26 | 2014-05-28 | 北京工业大学 | 一种全向性的水平剪切模态磁致伸缩传感器 |
FR3060089B1 (fr) | 2016-12-08 | 2019-08-23 | Mbda France | Ensemble d'equilibrage a bagues d'equilibrage pour missile et missile pourvu d'un tel ensemble d'equilibrage |
CN109216941A (zh) * | 2018-09-03 | 2019-01-15 | 吴通控股集团股份有限公司 | 一种小型干涉仪测向天线组 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2217911A (en) * | 1938-08-12 | 1940-10-15 | Rca Corp | Radio communication |
US2532428A (en) * | 1946-11-14 | 1950-12-05 | United Broadeasting Company | Elliptical polarization electromagnetic energy radiation system |
US3348228A (en) * | 1965-08-02 | 1967-10-17 | Raytheon Co | Circular dipole antenna array |
US3555552A (en) * | 1969-12-19 | 1971-01-12 | Andrew Alford | Dual polarized antenna system with controlled field pattern |
US4083051A (en) * | 1976-07-02 | 1978-04-04 | Rca Corporation | Circularly-polarized antenna system using tilted dipoles |
US4555708A (en) * | 1984-01-10 | 1985-11-26 | The United States Of America As Represented By The Secretary Of The Air Force | Dipole ring array antenna for circularly polarized pattern |
-
1989
- 1989-03-22 FR FR8903778A patent/FR2644937B1/fr not_active Expired - Lifetime
-
1990
- 1990-06-22 ES ES90401787T patent/ES2053136T3/es not_active Expired - Lifetime
- 1990-06-22 DK DK90401787T patent/DK0463263T3/da active
- 1990-06-22 DE DE1990608170 patent/DE69008170T2/de not_active Expired - Fee Related
- 1990-06-22 EP EP19900401787 patent/EP0463263B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69008170T2 (de) | 1994-10-13 |
EP0463263B1 (fr) | 1994-04-13 |
FR2644937B1 (fr) | 1991-09-27 |
EP0463263A1 (fr) | 1992-01-02 |
FR2644937A1 (fr) | 1990-09-28 |
DK0463263T3 (da) | 1994-06-06 |
DE69008170D1 (de) | 1994-05-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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