IT1232185B - Doppio eccitatore per antenne a riflessione - Google Patents
Doppio eccitatore per antenne a riflessioneInfo
- Publication number
- IT1232185B IT1232185B IT8948308A IT4830889A IT1232185B IT 1232185 B IT1232185 B IT 1232185B IT 8948308 A IT8948308 A IT 8948308A IT 4830889 A IT4830889 A IT 4830889A IT 1232185 B IT1232185 B IT 1232185B
- Authority
- IT
- Italy
- Prior art keywords
- exciter
- double
- antennas
- reflection
- reflection antennas
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/02—Waveguide horns
- H01Q13/0208—Corrugated horns
-
- 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
- H01Q19/17—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 comprising two or more radiating elements
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3829370A DE3829370A1 (de) | 1988-08-30 | 1988-08-30 | Doppelerreger fuer spiegelantennen zur erzeugung zweier eng benachbarter strahlungskeulen |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8948308A0 IT8948308A0 (it) | 1989-08-28 |
IT1232185B true IT1232185B (it) | 1992-01-25 |
Family
ID=6361874
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8948308A IT1232185B (it) | 1988-08-30 | 1989-08-28 | Doppio eccitatore per antenne a riflessione |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3829370A1 (it) |
GB (1) | GB2222486B (it) |
IT (1) | IT1232185B (it) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4001952A1 (de) * | 1990-01-24 | 1991-08-08 | Siemens Ag | Doppelerreger mit dielektrischem einsatz fuer spiegelantennen zur erzeugung zweier eng benachbarter strahlungskeulen |
DE4009322A1 (de) * | 1990-03-23 | 1991-09-26 | Ant Nachrichtentech | Speisesystem einer fuer winkeldiversity-betrieb vorgesehenen reflektorantenne |
KR950013122B1 (ko) * | 1993-05-24 | 1995-10-25 | 주식회사메디슨 | 초음파신호의 디지탈집속방법 및 그 장치 |
US6121939A (en) | 1996-11-15 | 2000-09-19 | Yagi Antenna Co., Ltd. | Multibeam antenna |
CN1118110C (zh) * | 1998-01-22 | 2003-08-13 | 松下电器产业株式会社 | 具有多-初级辐射器的共用-下变频器和多波束天线 |
DE102009034429B4 (de) * | 2009-07-23 | 2013-06-27 | Kathrein-Werke Kg | Flachantenne |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1054057A (it) * | ||||
GB495977A (en) * | 1936-07-21 | 1938-11-23 | Standard Telephones Cables Ltd | Ultra short wave transmission systems |
US2556094A (en) * | 1946-09-24 | 1951-06-05 | Rca Corp | High-frequency apparatus |
FR1290275A (fr) * | 1961-03-01 | 1962-04-13 | Thomson Houston Comp Francaise | Aériens pour ondes ultra courtes |
DE1516046B1 (de) * | 1966-03-09 | 1975-10-09 | Telefunken Patent | Anordnung zum gleichzeitigen Erzeugen mehrerer vorgegebener elektromagnetischer Wellentypen |
-
1988
- 1988-08-30 DE DE3829370A patent/DE3829370A1/de not_active Withdrawn
-
1989
- 1989-08-16 GB GB8918685A patent/GB2222486B/en not_active Expired - Fee Related
- 1989-08-28 IT IT8948308A patent/IT1232185B/it active
Also Published As
Publication number | Publication date |
---|---|
GB2222486B (en) | 1993-02-17 |
IT8948308A0 (it) | 1989-08-28 |
GB2222486A (en) | 1990-03-07 |
DE3829370A1 (de) | 1990-03-01 |
GB8918685D0 (en) | 1989-09-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19940708 |