Title :
Simulation of cold-test characteristics for TWT slow-wave structures
Author :
Bo, Han ; Xiao-bao, Su
Author_Institution :
Inst. of Electron., Chinese Acad. of Sci., Beijing, China
Abstract :
A method has been established to accurately calculate cold-test data for helical slow-wave structures using the three-dimensional (3D) electromagnetic computer code MAFIA [Kory, 1996]. Compared with the experiment data, absolute average differences across the bandwidth of 0.2% and 3.4 Ohms for the dispersion and impedance, respectively. The computer code MAFIA is also used in this analysis to determine the effect on dispersion and on-axis interaction impedance of the wedge support rod geometry parameter variation.
Keywords :
slow wave structures; 3.4 ohm; 3D electromagnetic computer code; MAFIA code; cold-test characteristics; cold-test data; helical slow-wave structures; on-axis interaction impedance; traveling-wave tube; wedge support rod geometry parameter variation; Analytical models; Bandwidth; Circuit simulation; Computational modeling; Dielectric constant; Dispersion; Impedance; Power engineering computing; Power system harmonics; Radio frequency; MAFIA; Traveling-wave tube; dispersion; helical slow-wave structure; interaction impedance;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1606480
