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Waveguide Multimode Directional Coupler for Harvesting Harmonic Power from the Output of Traveling-Wave Tube AmplifiersThis paper presents the design, fabrication, and test results for a novel waveguide multimode directional coupler (MDC). The coupler fabricated from dissimilar frequency band waveguides, is capable of isolating power at the 2nd harmonic frequency from the fundamental power at the output port of traveling-wave tube amplifiers. Test results from proof-of-concept demonstrations are presented for Ku/Ka-band and Ka/E-band MDCs, which demonstrate sufficient power in the 2nd harmonic for a space borne beacon source for mm-wave atmospheric propagation studies.
Document ID
20170005552
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Simons, Rainee N. (NASA Glenn Research Center Cleveland, OH United States)
Wintucky, Edwin G. (NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
June 14, 2017
Publication Date
June 4, 2017
Subject Category
Communications And Radar
Report/Patent Number
GRC-E-DAA-TN37015
E-19310
Report Number: GRC-E-DAA-TN37015
Report Number: E-19310
Meeting Information
Meeting: 2017 IEEE International Microwave Symposium
Location: Honolulu, HI
Country: United States
Start Date: June 4, 2017
End Date: June 9, 2017
Sponsors: Institute of Electrical and Electronics Engineers
Funding Number(s)
WBS: WBS 432938.11.01.03.06.02.04
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
Directional Coupler
Traveling-Wave Tube Amplifier
Beacon Source

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