NDLI: Efficient spatially combined amplifiers for compact Ku-band satellite communication terminals

Content Provider	IEEE Xplore Digital Library
Author	De Lisio, M. Deckman, C. Chun-Tung Cheung Echo, G. Thelander, H. Rosenberg, J.J.
Copyright Year	2005
Description	Author affiliation: Wavestream Corp., CA (De Lisio, M.; Deckman, C.; Chun-Tung Cheung; Echo, G.; Thelander, H.; Rosenberg, J.J.)
Abstract	Spatially combined amplifiers offer advantages in size and efficiency that are unmatched using traditional solid-state combining approaches. We present measured data from a spatially combined Ku-band deck $amplifier^{trade}$ for use in the 13.75-14.5 GHz satellite uplink band. This amplifier module generates over 45 dBm (31.6 W) of saturated power by spatially combining the outputs of six commercial MMICs with nearly ideal combining efficiency. The power amplifier module occupies less than 12 cubic inches and draws 165 W DC power while delivering 25 W output. We present linearity and spectral regrowth data for this module and demonstrate the flexibility of the deck amplifier architecture with data for a range of module output powers. The high efficiency of these deck amplifier modules enables creation of very compact, lightweight SSPAs and block upconverters capable of being mounted directly on the feed for small aperture satcom applications such as on-the-move and flyaway
Starting Page	312
Ending Page	317
File Size	460171
Page Count	6
File Format	PDF
ISBN	0780393937
DOI	10.1109/MILCOM.2005.1605703
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-10-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Satellite communication Power amplifiers Power generation Solid state circuits MMICs Costs Gain measurement Loss measurement Linearity Feeds
Content Type	Text
Resource Type	Article

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