-
Author(s):
M. Pereyaslavets, M. Sato, T. Shimozuma, Y. Takita, H. Idei, S. Kubo, K. Ohkubo and K. Hayashi
-
Title:
Development and Simulation of RF Components for High Power Millimeter Wave Gyrotrons
Date of publication:
Nov. 1996
-
Key words:
gyrotron cavity, mode generator, mode conversion, waveguide uptaper
-
Abstract:
To test gyrotron RF components, efficient low-power generators for rotating high-order modes of high purity are necessary. Designs of generators for the TE_15.3 mode at 84 GHz and for the TE_31.8 mode at 168 GHz are presented and some preliminary test results are discussed. In addition, Toshiba gyrotron cavities at 168 GHz were analyzed for leakage of' RF power in the beam tunnel. To decrease RF power leakage, the declination angle of the cut-off cavity cross section has to be decreased. A TE_15.3 waveguide nonlinear uptaper is analyzed at 84 GHz as well as 168 GHz uptapers. Since the calculated conversion losses are slightly higher than designed value, an optimization of those uptapers may be required.
-
|
