IT1308219B1 - Perfezionato sistema per comunicazioni satellitari comprendentemultiplatori di ingresso rf da una pluralita' di fasci locali ad un - Google Patents
Perfezionato sistema per comunicazioni satellitari comprendentemultiplatori di ingresso rf da una pluralita' di fasci locali ad unInfo
- Publication number
- IT1308219B1 IT1308219B1 IT1999RM000563A ITRM990563A IT1308219B1 IT 1308219 B1 IT1308219 B1 IT 1308219B1 IT 1999RM000563 A IT1999RM000563 A IT 1999RM000563A IT RM990563 A ITRM990563 A IT RM990563A IT 1308219 B1 IT1308219 B1 IT 1308219B1
- Authority
- IT
- Italy
- Prior art keywords
- multiplators
- input
- improved system
- satellite communications
- communications including
- Prior art date
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
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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15297798A | 1998-09-14 | 1998-09-14 |
Publications (3)
Publication Number | Publication Date |
---|---|
ITRM990563A0 ITRM990563A0 (it) | 1999-09-10 |
ITRM990563A1 ITRM990563A1 (it) | 2001-03-10 |
IT1308219B1 true IT1308219B1 (it) | 2001-12-10 |
Family
ID=22545256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT1999RM000563A IT1308219B1 (it) | 1998-09-14 | 1999-09-10 | Perfezionato sistema per comunicazioni satellitari comprendentemultiplatori di ingresso rf da una pluralita' di fasci locali ad un |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2000156660A (it) |
FR (1) | FR2783377A1 (it) |
IT (1) | IT1308219B1 (it) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1965511A1 (en) | 2007-02-28 | 2008-09-03 | Eutelsat SA | Uplink frequency multiplexing |
FR2922861B1 (fr) | 2007-10-30 | 2009-11-20 | Org Europeenne Telecommunications Par Satellite Eutelsat | Procede d'optimisation de la charge utile d'un satellite de telecommunication multifaisceaux. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4232321A (en) * | 1978-11-24 | 1980-11-04 | Bell Telephone Laboratories, Incorporated | Multiple beam satellite antenna with preferred polarization distribution |
ATE71773T1 (de) * | 1987-03-18 | 1992-02-15 | Siemens Ag | Zweispiegel-mikrowellen-richtantennenanordnung. |
US4868886A (en) * | 1988-06-14 | 1989-09-19 | Communication Satellite Corporation | Combined global/spot beam configuration for satellite communications |
FR2674401B1 (fr) * | 1991-03-22 | 1993-12-17 | Alcatel Espace | Installation de telecommunication par satellites apte a interesser plusieurs zones de couverture. |
US5754139A (en) * | 1996-10-30 | 1998-05-19 | Motorola, Inc. | Method and intelligent digital beam forming system responsive to traffic demand |
-
1999
- 1999-09-10 FR FR9911380A patent/FR2783377A1/fr not_active Withdrawn
- 1999-09-10 IT IT1999RM000563A patent/IT1308219B1/it active
- 1999-09-14 JP JP11260579A patent/JP2000156660A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2783377A1 (fr) | 2000-03-17 |
JP2000156660A (ja) | 2000-06-06 |
ITRM990563A0 (it) | 1999-09-10 |
ITRM990563A1 (it) | 2001-03-10 |
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