Weibel型不稳定性增益机理的相位条件和宽频带慢波迴旅放大器
THE PHASE CONDITION OF THE WEIBEL INSTABILITYGAIN MECHANISM AND A WIDE BAND SLOWWAVE CYCLOTRON AMPLIFIER
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摘要: 正 (一)引言 电子迴旋脉塞(Gyrotron)作为一类新型的快波器件,可在毫米、亚毫米波段有效地产生高功率相干辐射,标志着微波电子学的一大突破。 Gyrotron与普通微波管在作用机理上有很大的区别。它采用光滑波导或过模谐振腔作为高频结构,取代了传统的慢波电路或谐振腔。Gyrotron为快波型器件,而微波管一般为慢波型器件。不久前,有人提出利用慢波互作用的变态迴旋脉塞器件即weibel型器件。Gyrotron快波型器件的作用机理来自迴旋脉塞不稳定性,而Weibel型慢波器件的
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Abstract: Starting from the view point of the coherent cyclotron radiation, we work out the phase condition of the Weibel instability gain mechanism and make a comparison with the phase condition of the cyclotron maser gain mechanism. Moreover, we propose a conceived slow wave cyclotron amplifier (SWCA) with a periodic rf structure. -
K. R. Chu and J. Hirshfield, Phys. Fluids, 21(1978).461.[4]P. Sprangle and A. Drobot, IEEE Trans. on Microwave Theorlt and Techniques, MTT-25(1977),528. -
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