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提出了一种新的盘荷波导耦合器数值设计方法;通过分析Kyhl提出的耦合器调节原理,将输入阻抗之间的相差关系转换为耦合器输入波导的边界条件关系,由此利用Microwave Studio的EigenMode Solver求解本征值问题来实现对耦合器调谐、调匹配过程的模拟;并给出一个实例来说明数值计算方法的可行性和可靠性．
A new numerical design method of waveguide coupler is proposed. By analyzing the principle of coupler adjustment proposed by Kyhl, the phase difference between input impedance is transformed into the boundary condition of coupler input waveguide, EigenMode Solver solves the eigenvalue problem to simulate the process of tuning and adjusting the coupler. An example is given to illustrate the feasibility and reliability of the numerical method.