回旋管开放腔的衍射理论和工程设计
DIFFRACTION THEORY AND ENCINEERING CALCULATION OF OPEN RESONATORS OF THE C1RCULAR AND COAXIAL WAVEGU1DE TYPES FOR GYROTRON
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摘要: 本文利用横截面法并引入相位修正因子推导出非对称模式情况下的缓变截面圆波导和同轴波导开放腔的开放端的衍射反射系数。由此得到开放端口处的衍射边界条件,进而求得开放腔的主要参数,并求解了多模问题。文中比较了几种形式的开放腔,认为变截面同轴波导开放腔的本征频谱最稀。此外,本文还对模式竞争和工程计算方法作了简要讨论。
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Abstract: By using the method of transverse-section, the reflective coefficient of diffraction in the open-end of resonators with slowly varying eross-section under general unsym-metrical mode condifions have been found by introduction of a phase correction factor. Diffraction boundary conditions in the open-end are obtained, and can be used to solve multimode problems. Several different types of open resonators are studied, and methods of engineering calculation also briefly discussed. -
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