Title :
Optimization design of slow wave structure using genetic algorithm
Author :
Yi, Hong-xia ; Xiao, Liu ; Liu, Pu-Kun ; Li, Fei
Author_Institution :
Key Lab. of High Power Microwave Sources & Technol., Chinese Acad. of Sci., Beijing, China
Abstract :
In this paper, a scheme of obtaining the maximum theoretical overall efficiency is explored by optimizing the helix pitch profile of a TWT based on the collectability of spent beam. The detailed design of a Ku-band helix TWT is described according to three optimization goals (theoretical overall efficiency, theoretical collector efficiency and electronic efficiency). The simulation results indicate that the optimization for high interaction circuit efficiency or collector efficiency by itself is not adequate to obtain maximum overall efficiency. The maximum theoretical overall efficiency of 77% was achieved via the optimization of slow wave structure for theoretical overall efficiency.
Keywords :
genetic algorithms; microwave tubes; slow wave structures; Ku-band helix TWT; TWT; collector efficiency; efficiency 77 percent; genetic algorithm; helix pitch profile; high interaction circuit efficiency; optimization design; slow wave structure; spent beam; Acceleration; Electric potential; Electron devices; Genetic algorithms; Microwave circuits; Optimization; Space exploration; Efficiency; genetic algorithm optimization; helix traveling wave tube; large signal code;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2011 IEEE International
Conference_Location :
Bangalore
Print_ISBN :
978-1-4244-8662-5
DOI :
10.1109/IVEC.2011.5746952
