DocumentCode
3042623
Title
UHF SSPA Design for WCDMA Space Applications
Author
Martinetti, James ; Pallas, George ; Hoang, Thu ; Skarbowski, Dave ; Byram, Jody ; Katz, Allen
Author_Institution
Lockheed Martin Commercial Space Systems, Newtown, PA, 18940, USA
fYear
2007
fDate
29-31 Oct. 2007
Firstpage
1
Lastpage
5
Abstract
A new UHF Solid State Power Amplifier (SSPA) has been developed for a government mobile communications space program. The SSPA is capable of a peak power of 290 watts but will operate at a lower power of 135 Watts to provide the required linearity with WCDMA signals. Typical overall dc -RF efficiency is 42% at this operating point. The SSPA consists of an Input Amplifier with Command and Telemetry Electronics, a High Power Amplifier (HPA) section and an Electronic Power Converter (EPC). This paper begins by discussing the overall Satellite System Architecture, followed by details of the SSPA design and results from testing the Engineering Development Unit (EDU)
Keywords
Government; High power amplifiers; Linearity; Mobile communication; Multiaccess communication; Power amplifiers; Satellites; Solid state circuits; System testing; Telemetry;
fLanguage
English
Publisher
ieee
Conference_Titel
Military Communications Conference, 2007. MILCOM 2007. IEEE
Conference_Location
Orlando, FL, USA
Print_ISBN
978-1-4244-1513-7
Electronic_ISBN
978-1-4244-1513-7
Type
conf
DOI
10.1109/MILCOM.2007.4455203
Filename
4455203
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