GB1513452A - Subreflectors for toroidal reflector antennas - Google Patents
Subreflectors for toroidal reflector antennasInfo
- Publication number
- GB1513452A GB1513452A GB18871/75A GB1887175A GB1513452A GB 1513452 A GB1513452 A GB 1513452A GB 18871/75 A GB18871/75 A GB 18871/75A GB 1887175 A GB1887175 A GB 1887175A GB 1513452 A GB1513452 A GB 1513452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- subreflector
- rays
- main reflector
- focus
- single point
- 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
- 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
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
1513452 Aerials COMMUNICATIONS SATELLITE CORP 6 May 1975 [31 May 1974] 18871/75 Heading H4A In a toroidal reflector aerial system, a main reflector M has the shape of a surface portion of a torus and has a feed assembly comprising an aberration-correcting subreflector S and a feed horn H, the system being such that if an incoming beam to the main reflector is considered as a bundle of parallel rays, no two rays are incident at the same point on the surface of the subreflector S, substantially all rays focus at a single point at said feed horn and substantially all the ray path lengths from a reference aperture plane to said single point of focus are constant and equal to a predetermined reference path length. The main reflector M may be a section of a surface of revolution such as a circle, ellipse or hyperbola. In order to minimise aberrations, equations are derived from which points may be obtained using a digital computer for feeding into a numerically controlled milling machine used to machine the subreflector S.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US475226A US3922682A (en) | 1974-05-31 | 1974-05-31 | Aberration correcting subreflectors for toroidal reflector antennas |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1513452A true GB1513452A (en) | 1978-06-07 |
Family
ID=23886720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18871/75A Expired GB1513452A (en) | 1974-05-31 | 1975-05-06 | Subreflectors for toroidal reflector antennas |
Country Status (9)
Country | Link |
---|---|
US (1) | US3922682A (en) |
JP (1) | JPS51863A (en) |
CA (1) | CA1039843A (en) |
DE (1) | DE2523800A1 (en) |
FR (1) | FR2275901A1 (en) |
GB (1) | GB1513452A (en) |
IT (1) | IT1036133B (en) |
NL (1) | NL7506474A (en) |
SE (1) | SE403855B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154067A (en) * | 1984-02-09 | 1985-08-29 | Gen Electric Plc | An earth terminal for satellite communication systems |
US4833484A (en) * | 1984-02-09 | 1989-05-23 | The General Electric Company, P.L.C. | Earth terminal for satellite communication |
Families Citing this family (34)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD244096S (en) * | 1976-01-07 | 1977-04-19 | Mecaniplast | Plate-type antenna |
US4145695A (en) * | 1977-03-01 | 1979-03-20 | Bell Telephone Laboratories, Incorporated | Launcher reflectors for correcting for astigmatism in off-axis fed reflector antennas |
US4201992A (en) * | 1978-04-20 | 1980-05-06 | Communications Satellite Corporation | Multibeam communications satellite |
US4272769A (en) * | 1979-08-27 | 1981-06-09 | Young Frederick A | Microwave antenna with parabolic main reflector |
JPS5698905A (en) * | 1980-01-11 | 1981-08-08 | Kokusai Denshin Denwa Co Ltd <Kdd> | Dual reflecting mirror antenna |
US4339757A (en) * | 1980-11-24 | 1982-07-13 | Bell Telephone Laboratories, Incorporated | Broadband astigmatic feed arrangement for an antenna |
US4343004A (en) * | 1980-11-24 | 1982-08-03 | Bell Telephone Laboratories, Incorporated | Broadband astigmatic feed arrangement for an antenna |
US4355314A (en) * | 1980-11-28 | 1982-10-19 | Bell Telephone Laboratories, Incorporated | Wide-field-of-view antenna arrangement |
JPS57178402A (en) * | 1981-04-27 | 1982-11-02 | Kokusai Denshin Denwa Co Ltd <Kdd> | Multireflex mirror antenna |
JPS58139503A (en) * | 1982-02-15 | 1983-08-18 | Kokusai Denshin Denwa Co Ltd <Kdd> | Beam feeding device |
US4535338A (en) * | 1982-05-10 | 1985-08-13 | At&T Bell Laboratories | Multibeam antenna arrangement |
US4491848A (en) * | 1982-08-30 | 1985-01-01 | At&T Bell Laboratories | Substantially frequency-independent aberration correcting antenna arrangement |
US4482898A (en) * | 1982-10-12 | 1984-11-13 | At&T Bell Laboratories | Antenna feed arrangement for correcting for astigmatism |
US4638322A (en) * | 1984-02-14 | 1987-01-20 | The Boeing Company | Multiple feed antenna |
JPS60178709A (en) * | 1984-02-24 | 1985-09-12 | Nippon Telegr & Teleph Corp <Ntt> | Offset multi-reflector antenna |
US4631545A (en) * | 1984-11-16 | 1986-12-23 | At&T Bell Laboratories | Antenna arrangement capable of astigmatism correction |
US4806985A (en) * | 1986-07-11 | 1989-02-21 | Xerox Corporation | Stripper fingers |
US4786910A (en) * | 1987-11-05 | 1988-11-22 | American Telephone And Telegraph Company, At&T Bell Laboratories | Single reflector multibeam antenna arrangement with a wide field of view |
US5175562A (en) * | 1989-06-23 | 1992-12-29 | Northeastern University | High aperture-efficient, wide-angle scanning offset reflector antenna |
USD387773S (en) * | 1996-10-28 | 1997-12-16 | Weller Roger G | Satellite dish protective visor |
AU2001280322A1 (en) * | 2000-07-10 | 2002-01-21 | Wavefrontier Co., Ltd | Reflector antenna |
US6563473B2 (en) * | 2001-02-22 | 2003-05-13 | Ems Technologies Canada, Ltd. | Low sidelobe contiguous-parabolic reflector array |
CN101427486B (en) * | 2006-05-23 | 2013-06-19 | 英特尔公司 | Millimeter-wave communication system with directional antenna and one or more millimeter-wave reflectors |
EP2025045B1 (en) * | 2006-05-23 | 2011-05-11 | Intel Corporation | Chip-lens array antenna system |
US8320942B2 (en) * | 2006-06-13 | 2012-11-27 | Intel Corporation | Wireless device with directional antennas for use in millimeter-wave peer-to-peer networks and methods for adaptive beam steering |
US20080094298A1 (en) * | 2006-10-23 | 2008-04-24 | Harris Corporation | Antenna with Shaped Asymmetric Main Reflector and Subreflector with Asymmetric Waveguide Feed |
CN102820544B (en) | 2012-07-03 | 2015-08-19 | 深圳光启创新技术有限公司 | A kind of antenna reflective face phasing pad pasting and reflector antenna |
US20140055314A1 (en) * | 2012-08-21 | 2014-02-27 | Northeastern University | Doubly shaped reflector transmitting antenna for millimeter-wave security scanning system |
WO2015026398A1 (en) * | 2013-08-19 | 2015-02-26 | Garcia Antonio Ph D | Spectrophotometer based on optical caustics |
USD738866S1 (en) * | 2013-09-25 | 2015-09-15 | World Products Llc | Antenna with dome form factor |
USD814449S1 (en) * | 2016-02-19 | 2018-04-03 | Samsung Electronics Co., Ltd. | Network terminal |
USD815075S1 (en) * | 2016-02-19 | 2018-04-10 | Samsung Electronics Co., Ltd. | Network terminal |
RU2629906C1 (en) * | 2016-11-09 | 2017-09-04 | Самсунг Электроникс Ко., Лтд. | Mirror antenna with double polarization and wide scanning angle |
US11101569B2 (en) * | 2020-01-08 | 2021-08-24 | Dau-Chyrh Chang | Toroidal compact antenna test range |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3852763A (en) * | 1970-06-08 | 1974-12-03 | Communications Satellite Corp | Torus-type antenna having a conical scan capability |
US3737909A (en) * | 1970-06-18 | 1973-06-05 | Radiation Inc | Parabolic antenna system having high-illumination and spillover efficiencies |
FR2148341B1 (en) * | 1971-08-09 | 1977-01-28 | Thomson Csf |
-
1974
- 1974-05-31 US US475226A patent/US3922682A/en not_active Expired - Lifetime
-
1975
- 1975-05-02 CA CA226,139A patent/CA1039843A/en not_active Expired
- 1975-05-06 GB GB18871/75A patent/GB1513452A/en not_active Expired
- 1975-05-06 SE SE7505209A patent/SE403855B/en unknown
- 1975-05-23 JP JP50061158A patent/JPS51863A/en active Pending
- 1975-05-28 DE DE19752523800 patent/DE2523800A1/en not_active Withdrawn
- 1975-05-30 NL NL7506474A patent/NL7506474A/en not_active Application Discontinuation
- 1975-05-30 IT IT68395/75A patent/IT1036133B/en active
- 1975-06-02 FR FR7517096A patent/FR2275901A1/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2154067A (en) * | 1984-02-09 | 1985-08-29 | Gen Electric Plc | An earth terminal for satellite communication systems |
US4833484A (en) * | 1984-02-09 | 1989-05-23 | The General Electric Company, P.L.C. | Earth terminal for satellite communication |
Also Published As
Publication number | Publication date |
---|---|
JPS51863A (en) | 1976-01-07 |
SE7505209L (en) | 1975-12-01 |
DE2523800A1 (en) | 1975-12-11 |
CA1039843A (en) | 1978-10-03 |
US3922682A (en) | 1975-11-25 |
FR2275901A1 (en) | 1976-01-16 |
NL7506474A (en) | 1975-12-02 |
SE403855B (en) | 1978-09-04 |
IT1036133B (en) | 1979-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |