Title : 
Study of a W-band sheet-beam extended interaction klystron
         
        
            Author : 
Xiaofang Zhu ; XiaoLin Jin ; Lili Huang ; Bin Li
         
        
            Author_Institution : 
Nat. Key Lab. of Sci. & Technol. on Vacuum Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
         
        
        
        
        
        
            Abstract : 
In this paper, a W-band sheet-beam EIK with two five-cell extended interaction cavity working on 2π mode is studied. The cavity characteristic impedance and resonant frequency relevant to several key structure parameters are obtained and the EIK is optimized. The device stability and characteristics of beam-wave interaction are further studied. As a result, a 19.5kV, 3.5A W-band sheet-beam EIK is expected to generate an output power about 8kW and a gain of 23dB, which is better that its original performance.
         
        
            Keywords : 
klystrons; millimetre wave tubes; optimisation; W-band sheet-beam EIK; W-band sheet-beam extended interaction klystron; beam-wave interaction; cavity characteristic impedance; current 3.5 A; device stability; five-cell extended interaction cavity; gain 23 dB; resonant frequency; voltage 19.5 kV; Cavity resonators; Gain; Impedance; Klystrons; Power generation; Q-factor; Resonant frequency; EIK; W-band; sheet beam;
         
        
        
        
            Conference_Titel : 
Vacuum Electronics Conference (IVEC), 2015 IEEE International
         
        
            Conference_Location : 
Beijing
         
        
            Print_ISBN : 
978-1-4799-7109-1
         
        
        
            DOI : 
10.1109/IVEC.2015.7223959