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A Novel Multimode Waveguide Coupler for Accurate Power Measurement of Traveling Wave Tube Harmonic FrequenciesThis paper presents the design, fabrication and test results for a novel waveguide multimode directional coupler (MDC). The coupler fabricated from two dissimilar waveguides is capable of isolating the power at the second harmonic frequency from the fundamental power at the output port of a traveling-wave tube (TWT). In addition to accurate power measurements at harmonic frequencies, a potential application of the MDC is in the design of a beacon source for atmospheric propagation studies at millimeter-wave frequencies.
Document ID
20140017306
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
Wintucky, Edwin G.
(NASA Glenn Research Center Cleveland, OH United States)
Simons, Rainee N.
(NASA Glenn Research Center Cleveland, OH United States)
Date Acquired
December 11, 2014
Publication Date
April 22, 2014
Subject Category
Electronics And Electrical Engineering
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
GRC-E-DAA-TN13075
Report Number: GRC-E-DAA-TN13075
Meeting Information
Meeting: IEEE Vacuum Electronics Conference
Location: Monterey, CA
Country: United States
Start Date: April 22, 2014
End Date: April 24, 2014
Sponsors: Institute of Electrical and Electronics Engineers
Funding Number(s)
WBS: WBS 295670.01.04.13
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Keywords
harmonic frequencies
traveling wave tube
waveguide coupler
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