A waveguide fed transverse slot has been analysed using the Method of Moments (MoM) formulation, wherein the internal admittance matrix elements have been evaluated from image theory and using the images of the slot due to waveguide walls. The contribution from all the images not in the same row as the slot has been evaluated using a closed-form expression and a rapidly converging series with negligible contribution. The contribution from the row containing the reference slot has been evaluated by adding the mutual admittance between a few images and the reference slot using some recently developed simple and accurate approximations. The formulation has been extended to transverse slots radiating between the baffles. The results calculated using this simple, efficient and intuitive method are in excellent agreement with other theoretical as well as measured results. The technique can be extended to other slot configurations such as an inclined slot and for other slot aperture distributions such as with an edge condition in configurations permitting image formation.

中文翻译：

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使用矩量法和图像方法分析矩形波导横向缝

已使用矩量法（MoM）公式分析了波导馈送的横向缝隙，其中，内部导纳矩阵元素已根据图像理论进行了评估，并使用了由于波导壁而产生的缝隙图像。使用封闭形式的表达式和贡献可忽略不计的快速收敛序列，评估了与插槽不在同一行的所有图像的贡献。通过使用一些最近开发的简单而精确的近似值，通过在一些图像和参考槽之间添加互导来评估包含参考槽的行的贡献。该配方已扩展至在挡板之间辐射的横向槽。使用这种简单的方法计算出的结果，高效，直观的方法与其他理论和测量结果都非常吻合。该技术可以扩展到其他插槽配置（例如倾斜插槽），并扩展到其他插槽孔径分布（例如在允许成像的配置中具有边缘条件）。