Title :
MW-level 0.34 THz wave radiation from slow-wave device with relativistic hollow thin-wall electron beam
Author :
Wang Guangqiang ; Wang Jianguo ; Li Shuang ; Zeng Peng
Author_Institution :
Northwest Inst. of Nucl. Technol., Xi´an, China
Abstract :
A rectangularly corrugated relativistic slow-wave oscillator is designed to generate the MW-level 0.34 THz wave radiation. By using large overmoded ratio the manufacturing difficulty is efficiently decreased, while relativistic hollow thin-wall electron beam is adopted to suppress the mode competition. Simulations based on a 2.5-D particle-in-cell (PIC) code UNIPIC predict an output power up to 131MW at the frequency of 0.34 THz with conversion efficiency almost 10.8% when beam voltage is about 382kV, current 3.18kA, and the confined magnetic field 5.2T.
Keywords :
electron beams; microwave oscillators; slow wave structures; 2.5-D particle-in-cell code; THz wave radiation; UNIPIC; current 3.18 kA; electron beam; frequency 0.34 THz; power 131 MW; slow-wave device; slow-wave oscillator; voltage 382 kV; Electron beams; Microwave circuits; Microwave communication; Microwave oscillators; Power generation; Simulation; PIC; mode competition; overmoded; slow-wave; terahertz wave;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2015 IEEE International
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7109-1
DOI :
10.1109/IVEC.2015.7223830
