【摘要】 本文利用横向谐振法结合奇异积分方程技术研究了一种新型的波导不连续性——容性鳍形膜片。在距离不连续处适当的地方置入两个理想短路面,构造谐振腔。根据横向谐振条件,建立不连续性等效电路参量与谐振状态下的短路面位置的关系。短路面位置利用奇异积分方程技术得到。作为算例,计算了双侧鳍形膜片窗口的等效电路参量,当结构退化成容性金属膜片窗口时,数值结果与文献发表的数据相符。更多还原

【Abstract】 A new type of waveguide discontinuities-capacitive fin-septa windows are investigated by use of the resoance method combined with singular integral equation technique. Two ideal short circuiting planes are inserted at some distances from reference planes of the window so that the configuration forms a closed resonantor. Based on the resonant condition the equivalent parameters of the window are expressed in terms of the resonant distances between the reference planes and the shorting planes. The characteristic equation for the dista- nces with superior convergence is derived by using singular integral equation technique. As example, the equivalent parameters of a capacitive bilateral fin-septa window are computed. When the structure is degenerated into a capacitive metal window with zero thickness, the numerical results show good agreement with available data in the literatures.更多还原