Wideband communication satellite payload architecture

Author

Atia, Ali E.

Author_Institution

Orbital Sci. Corp., Dulles, VA, USA

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

Most communication satellite transponders employ the channelized approach, in which the allocated frequency band is subdivided into narrow band channels (transponders). Each channel is amplified individually by a power amplifier, then the amplified channels are re-combined (multiplexed) and transmitted. This architecture has been adopted primarily to enable the most efficient power utilization of the transmit amplifiers by driving them near saturation to achieve the highest possible DC to RF efficiency.

Keywords

amplification; frequency allocation; multiplexing; power amplifiers; satellite communication; telecommunication channels; transponders; communication satellite transponders; frequency band allocation; narrow band channels; power amplifier; power utilization; transmit amplifiers; wideband communication satellite payload architecture; Bandwidth; Computer architecture; Payloads; Radio frequency; Satellite broadcasting; Satellites; Transponders; Communication satellite; power amplifiers; satellite architecture; wideband system;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972991

Filename

5972991