An X-band phase-locked relativistic backward wave oscillator

Autor:	Zhenghong Li, Z.Z. Xu, Xiao Jin, Y. Wu, Ma Qiaosheng
Rok vydání:	2015
Předmět:	Physics Radio transmitter design business.industry Local oscillator Frequency drift Delay line oscillator Condensed Matter Physics Injection locking Vackář oscillator Voltage-controlled oscillator Optics Physics::Accelerator Physics Backward-wave oscillator business
Zdroj:	Physics of Plasmas. 22:083103
ISSN:	1089-7674 1070-664X
DOI:	10.1063/1.4927781
Popis:	For the purpose of coherent high power microwave combining at high frequency band, an X-band phase-locked relativistic backward wave oscillator is presented and investigated. The phase-locking of the oscillator is accomplished by modulation of the electron beam before it reaches the oscillator. To produce a bunched beam with an acceptable injected RF power requirement, an overmoded input cavity is employed to provide initial density modulation. And a buncher cavity is introduced to further increase the modulation depth. When the beam enters the oscillator, the modulation depth is enough to lock the frequency and phase of the output microwave generated by the oscillator. Particle-in-cell simulation shows that an input power of 90 kW is sufficient to lock the frequency and phase of 1.5 GW output microwave with locking bandwidth of 60 MHz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0d2968671049caac318be577e3dd7483 https://doi.org/10.1063/1.4927781 Zobrazit plný text záznamu