本文研究了波导宽边上有一定厚度的任意两个纵向缝隙的耦合特性。采用矩量法将积分方程化为矩阵方程,对其中的内积进行合理的处理,求解了积分方程和相应的参数。根据计算和实验结果讨论了缝隙的内部和外部互耦对缝隙的口径场分布、导纳特性、谐振电导及谐振长度等特性的影响。 In this paper, the coupling characteristics of any two longitudinal slots with a certain thickness on the broadside of waveguide are studied. The integral equation is transformed into the matrix equation by the moment method, and the inner product is dealt with rationally. The integral equation and the corresponding parameters are solved. According to the calculation and experimental results, the influence of the mutual coupling between the inside and outside of the slot on the caliber field distribution, admittance characteristics, resonant conductance and resonant length of the slot is discussed.