An S-band high gain relativistic klystron amplifier with high phase stability

Autor: Zeping Xu, Y. Wu, Hong-Quan Xie, Zhenghong Li, Ma Qiaosheng
Rok vydání: 2014
Předmět:
Zdroj: Physics of Plasmas. 21:113107
ISSN: 1089-7674
1070-664X
DOI: 10.1063/1.4901811
Popis: For the purpose of coherent high power microwave combining, an S-band high gain relativistic klystron amplifier with high phase stability is presented and studied. By the aid of 3D particle-in-cell code and circuit simulation software, the mechanism of parasitic oscillation in the device is investigated. And the RF lossy material is adopted in the simulation and experiment to suppress the oscillation. The experimental results show that with an input RF power of 10 kW, a microwave pulse with power of 1.8 GW is generated with a gain of 52.6 dB. And the relative phase difference fluctuation between output microwave and input RF signal is less than ±10° in 90 ns.
Databáze: OpenAIRE