Title :
Frequency characteristics of a relativistic traveling wave tube
Author :
Wei Song ; Yanchao Shi ; Xiaoze Li ; Ligang Zhang ; Weibin Tan ; Qi Ning ; Xu Liang
Author_Institution :
Sci. & Technol. on High Power Microwave Lab., Northwest Inst. of Nucl. Technol., Xi´an, China
Abstract :
Frequency agility and tunability is necessary for many applications of high power microwave sources. Frequency characteristics of a distributed feedback resonant traveling wave tube with high efficiency are investigated in this paper. Frequency hopping of the device is achieved by controlling the longitudinal mode competition. The experiments have been carried out and high power microwave with dual-modes output are obtained. When the voltage is about 680 kV, microwave with power of 2.1GW, frequency of 9.3GHz and efficiency of 41% is generated. Meanwhile, microwave with power of 1.2GW, frequency of 10.3GHz and efficiency of 35% is also generated while the voltage is about 580kV.
Keywords :
relativistic electron beam tubes; travelling wave tubes; distributed feedback resonant traveling wave tube; dual-modes output; frequency 10.3 GHz; frequency 9.3 GHz; frequency agility; frequency characteristics; frequency hopping; frequency tunability; high power microwave sources; longitudinal mode competition; power 1.2 GW; power 2.1 GW; relativistic traveling wave tube; Electron beams; Electron tubes; Frequency control; Microwave devices; Microwave oscillators; Resonant frequency; Frequency tuning; High power microwave; Mode competition; Traveling wave tube;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223977
