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本文应用矩法研究正交波导通过斜缝隙耦合的电磁场边值问题。文中应用等效原理和并矢格林函数理论,根据电磁场的边值条件建立以缝隙上,下口面切向电场为待求函数的积分方程组。应用矩法将积分方程转换成矩阵方程。对内积元的收敛性做了讨论。文中分析了两个斜缝隙之间耦合特性;给出散射参数和等效阴抗参数理论计算结果。理论值和实验值基本吻合。
In this paper, the moment method is used to study the electromagnetic field boundary value problem of orthogonal waveguides coupling through oblique slots. In this paper, the equivalent principle and the dyadic Green’s function theory are used to establish the integral equations of the upper and lower face tangential electric fields for the function to be solved according to the boundary conditions of the electromagnetic field. Apply moment method to convert integral equation to matrix equation. The convergence of inner element is discussed. In this paper, the coupling characteristics between two oblique slits are analyzed. The theoretical calculation results of the scattering parameters and the equivalent parameters are given. Theoretical and experimental values are basically consistent.