Title :
Measurement of dispersion characteristics of periodically loaded conducting posts in a rectangular waveguide [for gyro-TWT]
Author :
Yong-Hyun Park ; Jeong-Hae Lee
Author_Institution :
Dept. of Radio Sci. & Commun., Hongik Univ., Seoul, South Korea
Abstract :
The dispersion characteristics of periodically loaded conducting posts in a rectangular waveguide, which could be utilized as an interaction circuit of Gyro-TWT, have been measured. The measurement method using short metal plate can measure dispersion characteristics more simply and rapidly than the perturbation method. Various structures of periodically loaded conducting posts have been measured in the passband to investigate their dispersion characteristics. The measured results are compared with HFSS and show good agreement.
Keywords :
dispersion (wave); gyrotrons; microwave reflectometry; millimetre wave power amplifiers; millimetre wave tubes; periodic structures; rectangular waveguides; travelling wave amplifiers; travelling wave tubes; dispersion characteristics measurement; efficient power transfer; gyro-TWT; interaction circuit; periodic structure; periodically loaded conducting posts; rectangular waveguide; reflection coefficient; short metal plate; Bandwidth; Circuits; Dispersion; Electromagnetic measurements; Electromagnetic waveguides; Passband; Periodic structures; Perturbation methods; Phase measurement; Rectangular waveguides;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.893093
