IT1308220B1 - Perfezionato sistema per comunicazioni satellitari basato sullacondivisione di potenza rf per una molteplicita' di alimentazioni o - Google Patents

Perfezionato sistema per comunicazioni satellitari basato sullacondivisione di potenza rf per una molteplicita' di alimentazioni o

Info

Publication number
IT1308220B1
IT1308220B1 IT1999RM000564A ITRM990564A IT1308220B1 IT 1308220 B1 IT1308220 B1 IT 1308220B1 IT 1999RM000564 A IT1999RM000564 A IT 1999RM000564A IT RM990564 A ITRM990564 A IT RM990564A IT 1308220 B1 IT1308220 B1 IT 1308220B1
Authority
IT
Italy
Prior art keywords
multiplicity
power
improved system
satellite communications
communications based
Prior art date
Application number
IT1999RM000564A
Other languages
English (en)
Inventor
Eric G Butte
Randall D Tyner
Original Assignee
Loral Space Systems Inc
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 Loral Space Systems Inc filed Critical Loral Space Systems Inc
Publication of ITRM990564A0 publication Critical patent/ITRM990564A0/it
Publication of ITRM990564A1 publication Critical patent/ITRM990564A1/it
Application granted granted Critical
Publication of IT1308220B1 publication Critical patent/IT1308220B1/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1851—Systems using a satellite or space-based relay
    • H04B7/18515—Transmission equipment in satellites or space-based relays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Relay Systems (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
IT1999RM000564A 1998-09-14 1999-09-10 Perfezionato sistema per comunicazioni satellitari basato sullacondivisione di potenza rf per una molteplicita' di alimentazioni o IT1308220B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/152,331 US6456824B1 (en) 1998-09-14 1998-09-14 Satellite communication system using RF power sharing for multiple feeds or beams in downlinks

Publications (3)

Publication Number Publication Date
ITRM990564A0 ITRM990564A0 (it) 1999-09-10
ITRM990564A1 ITRM990564A1 (it) 2001-03-10
IT1308220B1 true IT1308220B1 (it) 2001-12-10

Family

ID=22542467

Family Applications (1)

Application Number Title Priority Date Filing Date
IT1999RM000564A IT1308220B1 (it) 1998-09-14 1999-09-10 Perfezionato sistema per comunicazioni satellitari basato sullacondivisione di potenza rf per una molteplicita' di alimentazioni o

Country Status (4)

Country Link
US (1) US6456824B1 (it)
JP (1) JP2000151493A (it)
FR (1) FR2783378A1 (it)
IT (1) IT1308220B1 (it)

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* Cited by examiner, † Cited by third party
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US6633982B1 (en) * 1999-03-20 2003-10-14 Wayne Samuel Kurzeja Method and process for managing ultra secure electronic distribution of digital movies to commercial exhibitors
US20040102191A1 (en) * 2002-11-22 2004-05-27 Pewitt Nelson D Communications system using high altitude relay platforms
US7221907B2 (en) * 2003-02-12 2007-05-22 The Boeing Company On orbit variable power high power amplifiers for a satellite communications system
FR2904897B1 (fr) * 2006-08-10 2008-09-26 Alcatel Sa Dispositif d'amplification large bande
US20090295628A1 (en) * 2006-09-26 2009-12-03 Viasat, Inc. Satellite System Optimization
EP2645596B2 (en) 2006-09-26 2020-02-12 ViaSat, Inc. Improved spot beam satellite systems
US8634766B2 (en) 2010-02-16 2014-01-21 Andrew Llc Gain measurement and monitoring for wireless communication systems
US8634760B2 (en) 2010-07-30 2014-01-21 Donald C. D. Chang Polarization re-alignment for mobile terminals via electronic process
US8862050B2 (en) 2010-07-30 2014-10-14 Spatial Digital Systems, Inc. Polarization diversity with portable devices via wavefront muxing techniques
US8570103B2 (en) 2011-06-16 2013-10-29 Donald C. D. Chang Flexible multi-channel amplifiers via wavefront muxing techniques
FR2969431B1 (fr) * 2010-12-21 2013-01-11 Thales Sa Satellite de diffusion a couverture multifaisceaux et plan de frequence flexible
WO2015178953A1 (en) * 2014-05-19 2015-11-26 L-3 Communications Corporation System and method for satellite using multifunctional motherboard
GB2563397A (en) * 2017-06-12 2018-12-19 Inmarsat Global Ltd Beam layout optimisation

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232266A (en) * 1978-09-05 1980-11-04 Bell Telephone Laboratories, Incorporated Technique for sharing a plurality of transponders among a same or larger number of channels
US4425639A (en) * 1981-01-12 1984-01-10 Bell Telephone Laboratories, Incorporated Satellite communications system with frequency channelized beams
US4500984A (en) * 1982-09-29 1985-02-19 International Telecommunications Satellite Organization Equalizer for reducing crosstalk between two FDM/FM carriers in a satellite communications system
US4689625A (en) * 1984-11-06 1987-08-25 Martin Marietta Corporation Satellite communications system and method therefor
US4752925A (en) 1984-11-13 1988-06-21 Hughes Aircraft Company Two-hop collocated satellite communications system
US4879711A (en) * 1986-08-14 1989-11-07 Hughes Aircraft Company Satellite communications system employing frequency reuse
US4819227A (en) 1986-08-14 1989-04-04 Hughes Aircraft Company Satellite communications system employing frequency reuse
US4931802A (en) 1988-03-11 1990-06-05 Communications Satellite Corporation Multiple spot-beam systems for satellite communications
US5668556A (en) 1991-10-02 1997-09-16 Alcatel Espace Low-orbit satellite communications system for terminals
US5287543A (en) * 1991-10-07 1994-02-15 General Electric Co. Multichannel communication system with an amplifier in each channel
US5576721A (en) 1993-03-31 1996-11-19 Space Systems/Loral, Inc. Composite multi-beam and shaped beam antenna system
US5497169A (en) 1993-07-15 1996-03-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Wide angle, single screen, gridded square-loop frequency selective surface for diplexing two closely separated frequency bands
US5619503A (en) * 1994-01-11 1997-04-08 Ericsson Inc. Cellular/satellite communications system with improved frequency re-use
US5649310A (en) 1994-06-15 1997-07-15 Space Systems/Loral, Inc. Signal translation and amplification system including a thermal radiation panel coupled thereto
WO1996002953A1 (en) 1994-07-20 1996-02-01 Commonwealth Scientific And Industrial Research Organisation Feed movement mechanism and control system for a multibeam antenna
KR0133338B1 (ko) * 1994-12-16 1998-04-21 양승택 위성중계기용 디지털 자동이득제어장치
US5619525A (en) 1995-06-06 1997-04-08 Globalstar L.P. Closed loop power control for low earth orbit satellite communications system
US5987037A (en) * 1996-02-26 1999-11-16 Lucent Technologies Inc. Multiple beam wireless telecommunication system
US5815527A (en) * 1996-04-23 1998-09-29 At & T Corp Method and apparatus for switching spread spectrum/code division multiple access modulated beams
US5861855A (en) 1997-02-03 1999-01-19 Hughes Electronics Corporation Method and apparatus for de-icing a satellite dish antenna
US6029044A (en) 1997-02-03 2000-02-22 Hughes Electronics Corporation Method and apparatus for in-line detection of satellite signal lock
US5940737A (en) 1997-02-27 1999-08-17 Hughes Electronics Corporation Signal selector
US5790070A (en) 1997-05-05 1998-08-04 Motorola, Inc. Network and method for controlling steerable beams
US5995495A (en) * 1997-05-23 1999-11-30 Mci Communications Corporation Method of and system for providing geographically targeted broadcast satellite service
US6032041A (en) * 1997-06-02 2000-02-29 Hughes Electronics Corporation Method and system for providing wideband communications to mobile users in a satellite-based network

Also Published As

Publication number Publication date
ITRM990564A1 (it) 2001-03-10
US6456824B1 (en) 2002-09-24
FR2783378A1 (fr) 2000-03-17
JP2000151493A (ja) 2000-05-30
ITRM990564A0 (it) 1999-09-10

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