DE69021993T2 - Satellite beam control system with improved beam shaping. - Google Patents

Satellite beam control system with improved beam shaping.

Info

Publication number
DE69021993T2
DE69021993T2 DE1990621993 DE69021993T DE69021993T2 DE 69021993 T2 DE69021993 T2 DE 69021993T2 DE 1990621993 DE1990621993 DE 1990621993 DE 69021993 T DE69021993 T DE 69021993T DE 69021993 T2 DE69021993 T2 DE 69021993T2
Authority
DE
Germany
Prior art keywords
control system
improved
satellite
shaping
beam shaping
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 - Fee Related
Application number
DE1990621993
Other languages
German (de)
Other versions
DE69021993D1 (en
Inventor
Timothy A Murphy
Kenneth H Renshaw
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Raytheon Co
Original Assignee
Hughes Aircraft Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hughes Aircraft Co filed Critical Hughes Aircraft Co
Application granted granted Critical
Publication of DE69021993D1 publication Critical patent/DE69021993D1/en
Publication of DE69021993T2 publication Critical patent/DE69021993T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
    • H01Q3/40—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means with phasing matrix
    • 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
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2611—Means for null steering; Adaptive interference nulling
    • H01Q3/2629—Combination of a main antenna unit with an auxiliary antenna unit
DE1990621993 1989-11-08 1990-11-06 Satellite beam control system with improved beam shaping. Expired - Fee Related DE69021993T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43405989A 1989-11-08 1989-11-08

Publications (2)

Publication Number Publication Date
DE69021993D1 DE69021993D1 (en) 1995-10-05
DE69021993T2 true DE69021993T2 (en) 1996-02-22

Family

ID=23722654

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1990621993 Expired - Fee Related DE69021993T2 (en) 1989-11-08 1990-11-06 Satellite beam control system with improved beam shaping.

Country Status (5)

Country Link
EP (1) EP0427201B1 (en)
JP (1) JPH03172003A (en)
AU (1) AU624742B2 (en)
CA (1) CA2027456C (en)
DE (1) DE69021993T2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE182729T1 (en) * 1991-10-28 1999-08-15 Teledesic Llc SATELLITE COMMUNICATION SYSTEM
GB2324912B (en) * 1994-04-18 1999-02-24 Int Mobile Satellite Org Beam-forming network
EP2715869B1 (en) 2011-05-23 2018-04-18 Limited Liability Company "Radio Gigabit" Electronically beam steerable antenna device
RU2530330C1 (en) 2013-03-22 2014-10-10 Общество с ограниченной ответственностью "Радио Гигабит" Radio relay communication station with scanning antenna
RU2595941C2 (en) * 2014-05-06 2016-08-27 Общество с ограниченной ответственностью "Радио Гигабит" Radio relay communication system with beam control
US9973266B1 (en) * 2017-06-12 2018-05-15 Ast & Science, Llc System and method for high throughput fractionated satellites (HTFS) for direct connectivity to and from end user devices and terminals using flight formations of small or very small satellites

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4595929A (en) * 1982-04-13 1986-06-17 Communications Satellite Corporation Scheme for aberration correction in scanning or multiple beam confocal antenna system
JPS60196003A (en) * 1984-03-19 1985-10-04 Nippon Telegr & Teleph Corp <Ntt> Multi-beam antenna of low side lobe
DE3788125T2 (en) * 1986-12-22 1994-06-09 Hughes Aircraft Co CONTROLLABLE RADIATION OF AN ANTENNA SYSTEM WITH BUTLER MATRIX.

Also Published As

Publication number Publication date
EP0427201A2 (en) 1991-05-15
CA2027456A1 (en) 1991-05-09
CA2027456C (en) 1995-09-26
AU6476590A (en) 1991-05-16
AU624742B2 (en) 1992-06-18
JPH03172003A (en) 1991-07-25
EP0427201A3 (en) 1991-12-11
DE69021993D1 (en) 1995-10-05
EP0427201B1 (en) 1995-08-30

Similar Documents

Publication Publication Date Title
NO892702D0 (en) CONTROL SYSTEM.
DE69007157D1 (en) Antenna beam control system.
DE3878032T2 (en) VEHICLE CONTROL SYSTEM.
DE3850773D1 (en) Remote control system.
DE3882496T2 (en) Position control system.
DE68919248D1 (en) Process control system.
NO893561D0 (en) REMOTE CONTROL SYSTEM.
DE3852159D1 (en) Low beam headlights.
DE69006284T2 (en) Hydraulic control system.
DE68921542D1 (en) Scanning beam control system.
DE69022323D1 (en) Transmission control system.
NO900984L (en) LASER RADAR SYSTEM.
NO880603D0 (en) CONTROL SYSTEM.
DE69001490T2 (en) CONTROL SYSTEM WITH MULTIPLEXER.
DE69004846D1 (en) Hydraulic control system.
DE68917435T2 (en) Self focus control system.
NO902331L (en) RADAR SYSTEM.
DE69021993T2 (en) Satellite beam control system with improved beam shaping.
DE59005954D1 (en) CONTROL SYSTEM.
NO903611L (en) Control System.
DE3879334T2 (en) POSITION CONTROL SYSTEM.
NO902237D0 (en) RADAR SYSTEM.
DE69204137T2 (en) Beam heating system.
NO890422L (en) ANTENNA SYSTEM.
DE3574650D1 (en) ELECTRON BEAM CONTROL SYSTEM.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee