Title :
Design optimization of non linear tapers for high power gyrotrons using hybrid space mapping techniques
Author :
Grover, Nischey ; Gajawada, Satish ; Machavaram, Kartikeyan V.
Author_Institution :
Dept. of Electron. & Comput. Eng., Indian Inst. of Technol. Roorkee, Roorkee, India
Abstract :
In this paper, the design and optimization of a nonlinear taper, connecting the output section of a gyrotron cavity to the uniform waveguide section, is presented. Non linear Tapers for 170 GHz and 140 GHz gyrotrons operating in TE31,11 and TE28,12 modes are taken as a case study. Such gyrotrons find applications in thermonuclear fusion experiments. Hybrid Space Mapping techniques are used for design optimization of the taper in order to reduce computational time and to achieve global optimum. The optimum design of the taper shows the effectiveness of the presented methods.
Keywords :
gyrotrons; optimisation; frequency 140 GHz; frequency 170 GHz; gyrotron cavity; high power gyrotron; hybrid space mapping technique; nonlinear taper optimization; thermonuclear fusion experiment; uniform waveguide section; Cavity resonators; Computational modeling; Gallium; Genetic algorithms; Gyrotrons; Millimeter wave technology; Optimization; Differential Evolution (DE); Genetic algorithm (GA); Gyrotron; Particle swarm optimization (PSO); Space Mapping; nonlinear taper;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746925