Title :
Design of a high efficiency launcher and mirror system for use in a 110 GHz TE22,6 mode gyrotron
Author :
Cao, Rong ; Perkins, Michael P. ; Vernon, Ronald J. ; Neilson, Jeffiey M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
fDate :
27 Sept.-1 Oct. 2004
Abstract :
A new launcher designed for a TE22,6 mode at 110 GHz has nearly all of its power in a well collimated beam. A set of four beam-shaping mirrors without discontinuities has been designed to convert the output from this launcher to a Gaussian beam at an 88.1 mm diameter output window. The experimental fraction of power coupled to the output Gaussian beam is 99.0% with an overall system efficiency of 97.0%. Theoretical and cold-test results are presented.
Keywords :
convertors; gyrotrons; millimetre wave antennas; millimetre wave tubes; mirrors; 110 GHz; 88.1 mm; Gaussian beam; TE22,6 mode gyrotron; beam shaping mirrors; collimated beam; convertors; launcher design; mirror system design; transverse electric mode gyrotron; Collimators; Design engineering; Design methodology; Gyrotrons; Mirrors; Optical coupling; Power engineering and energy; Power engineering computing; Surface reconstruction; Tellurium;
Conference_Titel :
Infrared and Millimeter Waves, 2004 and 12th International Conference on Terahertz Electronics, 2004. Conference Digest of the 2004 Joint 29th International Conference on
Print_ISBN :
0-7803-8490-3
DOI :
10.1109/ICIMW.2004.1422176
