FR2221825A1 - - Google Patents
Info
- Publication number
- FR2221825A1 FR2221825A1 FR7329961A FR7329961A FR2221825A1 FR 2221825 A1 FR2221825 A1 FR 2221825A1 FR 7329961 A FR7329961 A FR 7329961A FR 7329961 A FR7329961 A FR 7329961A FR 2221825 A1 FR2221825 A1 FR 2221825A1
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/247—Supports; Mounting means by structural association with other equipment or articles with receiving set with frequency mixer, e.g. for direct satellite reception or Doppler radar
-
- 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
- H01Q19/18—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 having two or more spaced reflecting surfaces
- H01Q19/19—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface
- H01Q19/193—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 having two or more spaced reflecting surfaces comprising one main concave reflecting surface associated with an auxiliary reflecting surface with feed supported subreflector
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Aerials With Secondary Devices (AREA)
- Details Of Aerials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722240893 DE2240893A1 (de) | 1972-08-19 | 1972-08-19 | Spiegelantenne, insbesondere fuer das 12 ghz-band |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2221825A1 true FR2221825A1 (US07696358-20100413-C00002.png) | 1974-10-11 |
FR2221825B3 FR2221825B3 (US07696358-20100413-C00002.png) | 1976-07-30 |
Family
ID=5854022
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7329961A Expired FR2221825B3 (US07696358-20100413-C00002.png) | 1972-08-19 | 1973-08-17 |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2240893A1 (US07696358-20100413-C00002.png) |
FR (1) | FR2221825B3 (US07696358-20100413-C00002.png) |
GB (1) | GB1384677A (US07696358-20100413-C00002.png) |
NL (1) | NL7311358A (US07696358-20100413-C00002.png) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2938187A1 (de) * | 1979-09-21 | 1981-04-02 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Cassegrain-erreger-system fuer eine parabolantenne |
DE2946111C2 (de) * | 1979-11-15 | 1986-09-11 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Optischer Körper für ein Cassegrain- oder cassegrain-ähnliches System |
EP0058215A1 (de) * | 1981-02-16 | 1982-08-25 | Kathrein-Werke Kg | Antenne zum Empfang von von Rundfunksatelliten abgestrahlten zirkular polarisierten elektromagnetischen Wellen |
DE3380008D1 (en) * | 1982-10-11 | 1989-07-06 | Cambridge Electronic Ind | Dish aerial |
EP0170726A1 (de) * | 1984-07-13 | 1986-02-12 | Siemens Aktiengesellschaft | Zweireflektor-Richtantenne |
US4673945A (en) * | 1984-09-24 | 1987-06-16 | Alpha Industries, Inc. | Backfire antenna feeding |
EP0196734A3 (en) * | 1985-03-28 | 1988-08-03 | Satellite Technology Services, Inc. | Cassegrain antenna for tvro application |
NO864563L (no) * | 1986-06-03 | 1987-12-04 | Sintef | Reflektorantenne med selvbaerende mateelement. |
DE3801619A1 (de) * | 1988-01-21 | 1989-07-27 | Thomson Brandt Gmbh | Empfangseinrichtung fuer satellitensignale |
DE4002913A1 (de) * | 1990-02-01 | 1991-08-08 | Ant Nachrichtentech | Doppelreflektor-antenne |
DE19725047A1 (de) * | 1996-07-03 | 1998-01-08 | Alsthom Cge Alcatel | Erregersystem für eine Antenne mit einem parabelförmig gebogenen Reflektor und einem dielektrischen Strahler |
CN1151590C (zh) * | 1997-08-21 | 2004-05-26 | 基尔达尔天线咨询公司 | 具有自支撑馈送器的改进的反射器天线 |
US10418712B1 (en) * | 2018-11-05 | 2019-09-17 | Eagle Technology, Llc | Folded optics mesh hoop column deployable reflector system |
-
1972
- 1972-08-19 DE DE19722240893 patent/DE2240893A1/de active Pending
-
1973
- 1973-08-17 NL NL7311358A patent/NL7311358A/xx unknown
- 1973-08-17 GB GB3906773A patent/GB1384677A/en not_active Expired
- 1973-08-17 FR FR7329961A patent/FR2221825B3/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2240893A1 (de) | 1974-03-07 |
GB1384677A (en) | 1975-02-19 |
NL7311358A (US07696358-20100413-C00002.png) | 1974-02-21 |
FR2221825B3 (US07696358-20100413-C00002.png) | 1976-07-30 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |