EP1085598A3 - Reflector with shaped surface and spatial separated foci for the illumination of identical areas, antenna system and method for determining the surface - Google Patents
Reflector with shaped surface and spatial separated foci for the illumination of identical areas, antenna system and method for determining the surface Download PDFInfo
- Publication number
- EP1085598A3 EP1085598A3 EP00118245A EP00118245A EP1085598A3 EP 1085598 A3 EP1085598 A3 EP 1085598A3 EP 00118245 A EP00118245 A EP 00118245A EP 00118245 A EP00118245 A EP 00118245A EP 1085598 A3 EP1085598 A3 EP 1085598A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- reflector
- illumination
- determining
- antenna system
- shaped surface
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/007—Antennas or antenna systems providing at least two radiating patterns using two or more primary active elements in the focal region of a focusing device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
- H01Q15/147—Reflecting surfaces; Equivalent structures provided with means for controlling or monitoring the shape of the reflecting surface
-
- 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
-
- 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
- H01Q19/195—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 wherein a reflecting surface acts also as a polarisation filter or a polarising device
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Die Erfindung betrifft einen Reflektor mit geformter Oberfläche für elektromagnetische Wellen, wobei eine lokale Formgebung des Reflektors (1) derart ausgelegt wird, daß der Reflektor (1) mehrere, räumlich getrennte Foki (10a, 10b, 110a, 110b) aufweist. Es können dadurch von räumlich getrennten Strahlern (4a, 4b, 40a, 40b) ausgehende elektromagnetische Strahlbündel (5a, 5b, 50a, 50b), insbesondere solche verschiedener Frequenz oder Frequenzbänder, die den Reflektor (1) ausleuchten, auf ein gemeinsames Ausleuchtgebiet (3, 3a, 3b) gerichtet werden. The invention relates to a reflector with a shaped surface for electromagnetic waves, a local shape of the reflector (1) being designed such that the reflector (1) has a plurality of spatially separated foci (10a, 10b, 110a, 110b). As a result, electromagnetic beams (5a, 5b, 50a, 50b) emanating from spatially separated emitters (4a, 4b, 40a, 40b), in particular those of different frequencies or frequency bands, which illuminate the reflector (1), can be directed to a common illumination area (3 , 3a, 3b) are directed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03005032A EP1321999A1 (en) | 1999-09-20 | 2000-09-04 | Shaped Reflector with spatially separated foci for the illumination of identical areas, and method for determining its surface |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19945062A DE19945062A1 (en) | 1999-09-20 | 1999-09-20 | Reflector with a shaped surface and spatially separated foci for illuminating identical areas, antenna system and method for determining the surface |
DE19945062 | 1999-09-20 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03005032A Division EP1321999A1 (en) | 1999-09-20 | 2000-09-04 | Shaped Reflector with spatially separated foci for the illumination of identical areas, and method for determining its surface |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1085598A2 EP1085598A2 (en) | 2001-03-21 |
EP1085598A3 true EP1085598A3 (en) | 2002-07-31 |
Family
ID=7922672
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03005032A Ceased EP1321999A1 (en) | 1999-09-20 | 2000-09-04 | Shaped Reflector with spatially separated foci for the illumination of identical areas, and method for determining its surface |
EP00118245A Ceased EP1085598A3 (en) | 1999-09-20 | 2000-09-04 | Reflector with shaped surface and spatial separated foci for the illumination of identical areas, antenna system and method for determining the surface |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03005032A Ceased EP1321999A1 (en) | 1999-09-20 | 2000-09-04 | Shaped Reflector with spatially separated foci for the illumination of identical areas, and method for determining its surface |
Country Status (6)
Country | Link |
---|---|
US (1) | US6255997B1 (en) |
EP (2) | EP1321999A1 (en) |
JP (1) | JP5220966B2 (en) |
CN (1) | CN1289158A (en) |
CA (1) | CA2317388C (en) |
DE (1) | DE19945062A1 (en) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2802381B1 (en) * | 1999-12-09 | 2002-05-31 | Cit Alcatel | RADIANT SOURCE FOR TRANSMISSION AND RECEPTION ANTENNA FOR MOUNTING ON BOARD A SATELLITE |
FR2888674B1 (en) * | 2005-07-13 | 2009-10-23 | Alcatel Sa | NETWORK ANTENNA WITH REFLECTOR (S) CONFORMING (S), HAVING HIGH RECONFIGURABILITY IN ORBIT |
US7595769B2 (en) * | 2006-02-28 | 2009-09-29 | The Boeing Company | Arbitrarily shaped deployable mesh reflectors |
EP2850734B1 (en) | 2012-05-13 | 2019-04-24 | Amir Khandani | Full duplex wireless transmission with channel phase-based encryption |
JP2014017708A (en) * | 2012-07-10 | 2014-01-30 | Nippon Hoso Kyokai <Nhk> | Space synthesis antenna device and manufacturing method for modified mirror surface reflector |
JP2014165790A (en) * | 2013-02-27 | 2014-09-08 | Nippon Hoso Kyokai <Nhk> | Reception antenna device, and manufacturing method of mirror surface-corrected reflector |
US10177896B2 (en) | 2013-05-13 | 2019-01-08 | Amir Keyvan Khandani | Methods for training of full-duplex wireless systems |
US9766345B2 (en) | 2013-10-04 | 2017-09-19 | Qualcomm Incorporated | Low cost cableless ground station antenna for medium earth orbit satellite communication systems |
US9236996B2 (en) | 2013-11-30 | 2016-01-12 | Amir Keyvan Khandani | Wireless full-duplex system and method using sideband test signals |
US9820311B2 (en) | 2014-01-30 | 2017-11-14 | Amir Keyvan Khandani | Adapter and associated method for full-duplex wireless communication |
WO2016054324A1 (en) * | 2014-10-02 | 2016-04-07 | Viasat, Inc. | Multi-beam bi-focal shaped reflector antenna for concurrent communication with multiple non-collocated geostationary satellites and associated method |
US10122085B2 (en) * | 2014-12-15 | 2018-11-06 | The Boeing Company | Feed re-pointing technique for multiple shaped beams reflector antennas |
EP3278397A1 (en) | 2015-04-03 | 2018-02-07 | Qualcomm Incorporated | Low cost cableless ground station antenna for medium earth orbit satellite communication systems |
US10778295B2 (en) | 2016-05-02 | 2020-09-15 | Amir Keyvan Khandani | Instantaneous beamforming exploiting user physical signatures |
US10700766B2 (en) | 2017-04-19 | 2020-06-30 | Amir Keyvan Khandani | Noise cancelling amplify-and-forward (in-band) relay with self-interference cancellation |
US11212089B2 (en) | 2017-10-04 | 2021-12-28 | Amir Keyvan Khandani | Methods for secure data storage |
US11289819B2 (en) * | 2017-12-28 | 2022-03-29 | Raven Antenna Systems Inc. | Multisat shaped reflector antenna |
US11012144B2 (en) | 2018-01-16 | 2021-05-18 | Amir Keyvan Khandani | System and methods for in-band relaying |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5773506A (en) * | 1980-10-27 | 1982-05-08 | Nippon Telegr & Teleph Corp <Ntt> | Common antenna for multifrequency band |
US4482897A (en) * | 1982-06-28 | 1984-11-13 | At&T Bell Laboratories | Multibeam segmented reflector antennas |
US4544928A (en) * | 1980-07-16 | 1985-10-01 | General Electric Company | Multifrequency reflector antenna |
EP0219321A1 (en) * | 1985-10-10 | 1987-04-22 | British Aerospace Public Limited Company | Antenna systems |
FR2674377A1 (en) * | 1991-03-22 | 1992-09-25 | Alcatel Espace | Radio frequency antenna with multi-focal reflector |
JPH05152835A (en) * | 1991-11-29 | 1993-06-18 | Toshiba Corp | Mirror surface correction antenna |
EP0920076A2 (en) * | 1997-10-30 | 1999-06-02 | Space Systems/Loral, Inc. | Multiple beam by shaped reflector antenna |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5315045A (en) * | 1976-07-27 | 1978-02-10 | Mitsubishi Electric Corp | Multi-frequency common-use antenna |
JPS5315044A (en) | 1976-07-27 | 1978-02-10 | Mitsubishi Electric Corp | Multi-frequency common-use antenna |
US4298877A (en) * | 1979-01-26 | 1981-11-03 | Solar Energy Technology, Inc. | Offset-fed multi-beam tracking antenna system utilizing especially shaped reflector surfaces |
JPS59143405A (en) * | 1983-02-04 | 1984-08-17 | Kokusai Denshin Denwa Co Ltd <Kdd> | Multibeam antenna |
CA1258707A (en) * | 1984-12-26 | 1989-08-22 | Tomozo Ohta | Antenna system |
JPS6349809U (en) * | 1986-09-19 | 1988-04-04 | ||
JPS63173404A (en) * | 1987-01-12 | 1988-07-18 | Nec Corp | Multi-beam antenna |
JPH05315044A (en) * | 1992-05-07 | 1993-11-26 | Murata Mfg Co Ltd | Soldering of electronic parts |
CA2101141C (en) * | 1992-09-17 | 1997-10-28 | Parthasarathy Ramanujam | Equalized offset fed shaped reflector antenna system and technique for equalizing same |
CA2105745C (en) * | 1992-09-21 | 1997-12-16 | Parthasarathy Ramanujam | Identical surface shaped reflectors in semi-tandem arrangement |
US5557292A (en) * | 1994-06-22 | 1996-09-17 | Space Systems/Loral, Inc. | Multiple band folding antenna |
DE19544500C2 (en) * | 1994-12-15 | 1999-07-08 | Daimler Benz Aerospace Ag | Reflector antenna, in particular for a communication satellite |
JP3440687B2 (en) * | 1996-04-16 | 2003-08-25 | 三菱電機株式会社 | Mirror shaped shaped beam antenna |
US5949370A (en) * | 1997-11-07 | 1999-09-07 | Space Systems/Loral, Inc. | Positionable satellite antenna with reconfigurable beam |
-
1999
- 1999-09-20 DE DE19945062A patent/DE19945062A1/en not_active Ceased
- 1999-12-06 US US09/455,189 patent/US6255997B1/en not_active Expired - Lifetime
-
2000
- 2000-09-04 EP EP03005032A patent/EP1321999A1/en not_active Ceased
- 2000-09-04 EP EP00118245A patent/EP1085598A3/en not_active Ceased
- 2000-09-06 CN CN00126852.XA patent/CN1289158A/en active Pending
- 2000-09-07 CA CA002317388A patent/CA2317388C/en not_active Expired - Fee Related
- 2000-09-20 JP JP2000285671A patent/JP5220966B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4544928A (en) * | 1980-07-16 | 1985-10-01 | General Electric Company | Multifrequency reflector antenna |
JPS5773506A (en) * | 1980-10-27 | 1982-05-08 | Nippon Telegr & Teleph Corp <Ntt> | Common antenna for multifrequency band |
US4482897A (en) * | 1982-06-28 | 1984-11-13 | At&T Bell Laboratories | Multibeam segmented reflector antennas |
EP0219321A1 (en) * | 1985-10-10 | 1987-04-22 | British Aerospace Public Limited Company | Antenna systems |
FR2674377A1 (en) * | 1991-03-22 | 1992-09-25 | Alcatel Espace | Radio frequency antenna with multi-focal reflector |
JPH05152835A (en) * | 1991-11-29 | 1993-06-18 | Toshiba Corp | Mirror surface correction antenna |
EP0920076A2 (en) * | 1997-10-30 | 1999-06-02 | Space Systems/Loral, Inc. | Multiple beam by shaped reflector antenna |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 006, no. 151 (E - 124) 11 August 1982 (1982-08-11) * |
PATENT ABSTRACTS OF JAPAN vol. 017, no. 542 (E - 1441) 29 September 1993 (1993-09-29) * |
Also Published As
Publication number | Publication date |
---|---|
EP1321999A1 (en) | 2003-06-25 |
DE19945062A1 (en) | 2001-04-12 |
EP1085598A2 (en) | 2001-03-21 |
CN1289158A (en) | 2001-03-28 |
CA2317388A1 (en) | 2001-03-20 |
JP2001127538A (en) | 2001-05-11 |
JP5220966B2 (en) | 2013-06-26 |
US6255997B1 (en) | 2001-07-03 |
CA2317388C (en) | 2002-12-24 |
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