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30 GHz Commercial Satellite ReceiversNASA's research and development work in satellite communications for the past 10 years has included a major technology thrust aimed at opening the Ka frequency band to commercial exploitation. This has included the development and testing of advanced system network architectures, on-board switching and processing, multibeam and phased array antennas, and satellite and ground terminal RF and digital hardware. Development work in system hardware has focused on critical components including power amplifiers, satellite IF switch matrices, low noise receivers, baseband processors, and high data rate bandwidth efficient modems. This paper describes NASA's work in developing and testing 30 GHz low noise satellite receivers for commercial space communications uplink applications. Frequencies allotted for fixed service commercial satellite communications in the Ka band are 27.5 - 30.0 GHz for uplink transmission and 17.7 - 20.2 GHz for downlink transmission. The relatively large 2.5 GHz bandwidth lends itself to wideband, high data rate digital transmission applications.
Document ID
20000060835
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Kerczewski, Robert J.
(NASA Lewis Research Center Cleveland, OH United States)
Ponchak, George E.
(NASA Lewis Research Center Cleveland, OH United States)
Romanofsky, Robert R.
(NASA Lewis Research Center Cleveland, OH United States)
Date Acquired
August 19, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Applied Microwave Magazine
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Funding Number(s)
PROJECT: RTOP 632-50-5B
Distribution Limits
Public
Copyright
Other

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