In this paper the coupled mode equations governing the propagation of TE/spl deg//sub 0m/ waves in a tapered circular waveguide are derived. The derivation is based on the assumption that an elementary section of the taper can be thought of as an elementary truncated cone. This approach is superior to the cylindrical mode representation in that it eliminates the singularity in the coupled mode equations for the modal amplitudes at "cut-off " and also leads to a faster converging expansion. An iterative method of solving these equations is also outlined.
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机译：在本文中，导出了控制TE / spl deg // sub 0m /波在锥形圆形波导中传播的耦合模式方程。该推导基于这样的假设：锥的基本截面可以被认为是基本的圆锥台。这种方法优于圆柱模态表示，因为它消除了耦合模态方程中“截止”时模态振幅的奇异性，并且还导致了更快的收敛扩展。还概述了求解这些方程的迭代方法。
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