High power, high efficiency millimeter wavelength traveling wave tubes for high rate communications from deep spaceThe high-power transmitters needed for high data rate communications from deep space will require a new class of compact, high efficiency traveling wave tubes (TWT's). Many of the recent TWT developments in the microwave frequency range are generically applicable to mm wave devices, in particular much of the technology of computer aided design, cathodes, and multistage depressed collectors. However, because TWT dimensions scale approximately with wavelength, mm wave devices will be physically much smaller with inherently more stringent fabrication tolerances and sensitivity to thermal dissipation.
Document ID
19910067838
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dayton, James A., Jr. (NASA Lewis Research Center Cleveland, OH, United States)