波導(dǎo)系統(tǒng)中電子注輻射過程的能量守恒關(guān)系
THE ENERGY CONSERVATION IN THE PROCESS OF ELECTRON BEAM RADIATION IN A WAVEGUIDE SYSTEM
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摘要: 本文應(yīng)用電磁場(chǎng)的算子理論求出了在任意截面的波導(dǎo)系統(tǒng)內(nèi),由電子注電流所激勵(lì)的電磁場(chǎng)的公式。在這一公式中由單位功率流下的場(chǎng)代替了一般并矢格林函數(shù)中的歸一化本征常數(shù);這樣,不但可以證明激勵(lì)過程中的能量守恒關(guān)系,還可以比較方便地應(yīng)用到各種實(shí)際的電子器件的互作用理論中去。
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關(guān)鍵詞:
Abstract: The equation of electric field radiated by the current f electron beam in a waveguide with arbitrary cross-section is derived. In this equation, the ordinany dyadic Green s function is replaced by the modified one in which the eigenfield is normalized by the power flow. By this equation, the energy conservation in the radiation process can be proved. This equation can be used to compute the interaction of the actual electron devices. -
J. E. Pierce, Travelling-Wave Tubes, Van Nostrand, Princeton, N. J., 1950.[2]J. E. Rowe, Nonlinear Electron-Wave Interaction Phenomena, Academic Press, 196.5.[3]G. S. Kino et al., Proc. Sixth Int. Conf. on Microwave and Optical Generation and Amplification, pp. 49-53, 1966.[4]電子管設(shè)計(jì)手冊(cè)編委會(huì),行波管非線性相互作用理論和計(jì)算,1976.[5]宋文淼,電子學(xué)通訊,3(1980), 119.[6]J. R. Vaughan et al., IEEE Trans. on ED. ED-22(1975), 880.[7]D. J. Connolly et al., ibid., ED-24(1977), 27.[8]宋文淼,李鎮(zhèn)淮,電子學(xué)報(bào),1984年,第3期,第25頁.[9]宋文淼,劉湧銓,昊靜賢,電子科學(xué)學(xué)刊,7(1985), 123.[10]宋文淼,電子科學(xué)學(xué)刊,8(1986), 8. -
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