Title :
Microfabricated 94 GHz TWT
Author :
Kory, Carol L. ; Dayton, James A. ; Mearini, Gerald T. ; Lueck, M.
Author_Institution :
Teraphysics Corp., Cleveland, OH, USA
Abstract :
Teraphysics Corporation is developing a 94 GHz, 25 W helical traveling wave tube (TWT) with 60% overall efficiency. The TWT includes several innovations including a reinvented helix geometry and fabrication that is compatible with lithographic, microfabrication techniques; a novel mechanical design where the electron gun, circuit and collector are fabricated simultaneously for alignment within two microns; and a novel, compact, periodic permanent magnet focusing configuration. The result is a compact device approximately 2.6” long, 1.9” in diameter, with weight of 1 lb, which will serve as Teraphysics´ platform for future mm-wave and THz devices.
Keywords :
electron guns; helical waveguides; lithography; microfabrication; millimetre wave tubes; permanent magnets; travelling wave tubes; THz devices; efficiency 60 percent; electron gun; frequency 94 GHz; helical traveling wave tube; lithographic; mechanical design; microfabricated TWT; microfabrication techniques; mm-wave; periodic permanent magnet; power 25 W; reinvented helix fabrication; reinvented helix geometry; teraphysics corporation; Diamonds; Finite element analysis; Integrated circuit modeling; Microfabrication; Silicon; Temperature measurement; TWT; helix; microfabrication; mm-wave;
Conference_Titel :
Vacuum Electronics Conference, IEEE International
Conference_Location :
Monterey, CA
DOI :
10.1109/IVEC.2014.6857547
