強(qiáng)耦合雙間隙微波諧振腔的特性分析
An analysis of the characteristics of strongly coupling two-gap microwave cavities
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摘要: 該文設(shè)計(jì)了一類適合用于較低頻波段寬帶多注速調(diào)管的新型微波諧振腔強(qiáng)耦合雙間隙腔，并采用了較精確的三維電磁場(chǎng)模擬計(jì)算程序ISFEL3D對(duì)其各種主要參數(shù)和特性做了詳盡的計(jì)算和理論分析，結(jié)果表明，強(qiáng)耦合雙間隙微波諧振腔工作于模時(shí)具有特性阻抗高而且體積小的突出優(yōu)點(diǎn)，同時(shí)模頻率與2模頻率的間隔明顯增大。另外，該文還利用兩種常用的集總元件等效電路對(duì)計(jì)算數(shù)據(jù)和結(jié)論進(jìn)行驗(yàn)證，并對(duì)兩種常用的等效電路的精確度做了討論。Abstract: A new kind of microwave cavity-strongly coupling two-gap cavities, which can be used in broadband multi-beam klystrons that work in lower frequency band, is designed in this paper. The important parameters of the cavity are calculated with ISFEL3D, a reliable program for solving three dimension electric-magnetic field problems, and the characteristics of this kind of cavity are analyzed carefully. It is showed that strongly coupling two-gap cavities have some prominent virtues, such as higher characteristic resistance and smaller volume when they work in tt mode. Besides, the frequency interval of n mode and 2tt mode is much wider. Furthermore, two kinds of concentrated element equivalent circuits are used in this paper to prove the calculated data and conclusions, meanwhile the precision of two equivalent circuits is discussed.
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沈斌,丁耀根,林福民,陳新橋,用于L波段多注寬帶速調(diào)管的模矩形同軸諧振腔的計(jì)算,中國電子學(xué)會(huì)真空電子學(xué)分會(huì)第十三屆學(xué)術(shù)年會(huì)論文集,貴陽,2001年8月,133-135.[2]E. Lien, D. Robinson, Study and investigation leading to the design of broadband high-power klystron amplifiers, Technical Report for United States Army Electronics Command, No. ECOM-02157-1, March, 1967.[3]H.J. Curnow, A general equivalent circuit for coupled-cavity slow-wave structures, IEEE Trans.on Microwave Theory and Techniques, 1965, MTT-13(5), 671-675.[4]M.A. Allen, G. S. Kino, On the theory of strongly coupled cavity chains, IRE Trans. Microwave Theory and Techniques, 1960, MTT-8(3), 362-272.[5]大功率速調(diào)管設(shè)計(jì)手冊(cè),北京,中國科學(xué)院電子學(xué)研究所編,1979年,159-163.[6]丁耀根,多注速調(diào)管雙間隙耦合腔特性的三維計(jì)算,中國電子學(xué)會(huì)真空電子學(xué)分會(huì)第十一屆學(xué)術(shù)年會(huì)論文集,青島,1997年8月,122-124. -
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