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Wideband Reconfigurable Harmonically Tuned GaN SSPA for Cognitive RadiosThe paper presents the architecture of a wideband reconfigurable harmonically-tuned Gallium Nitrate (GaN) Solid State Power Amplifier (SSPA) for cognitive radios. When interfaced with the physical layer of a cognitive communication system, this amplifier topology offers broadband high efficiency through the use of multiple tuned input/output matching networks. This feature enables the cognitive radio to reconfigure the operating frequency without sacrificing efficiency. This paper additionally presents as a proof-of-concept the design, fabrication, and test results for a GaN inverse class-F type amplifier operating at X-band (8.4 GHz) that achieves a maximum output power of 5.14-W, Power Added Efficiency (PAE) of 38.6, and Drain Efficiency (DE) of 48.9 under continuous wave (CW) operation.
Document ID
20170006029
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Waldstein, Seth W. (Cincinnati Univ. OH, United States)
Barbosa Kortright, Miguel A. (Puerto Rico Univ. Mayaguez, Puerto Rico)
Simons, Rainee N. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
July 3, 2017
Publication Date
June 27, 2017
Subject Category
Communications And Radar
Report/Patent Number
GRC-E-DAA-TN42365
Meeting Information
Meeting: IEEE Cognitive Communications for Aerospace Applications Workshop
Location: Cleveland, OH
Country: United States
Start Date: June 27, 2017
End Date: June 28, 2017
Sponsors: NASA Headquarters, Institute of Electrical and Electronics Engineers, American Inst. of Aeronautics and Astronautics
Funding Number(s)
CONTRACT_GRANT: NNC16QA09D
CONTRACT_GRANT: NNX13AJ40A
WBS: WBS 432938.11.01.03.06.02.04
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Cognitive
Amplifier
Gallium Nitride

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