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首页> 外文期刊>Applied Computational Electromagnetics Society journal >A Simple Analytical Method to Calculate Bending Loss in Dielectric Rectangular Waveguides
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A Simple Analytical Method to Calculate Bending Loss in Dielectric Rectangular Waveguides

机译：计算介电矩形波导中弯曲损耗的简单分析方法

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摘要

We present a simple analytical method to compute attenuation in bent dielectric rectangular waveguides. An approximate formulation for the attenuation constant is first derived by determining the ratio of average power loss per unit length to the average power propagating along the waveguide. Since the waveguide has been simplified into a slab in the process of derivation, losses at the four edges of the structure have been neglected. To account for these losses, the perturbation theory has been employed. The total loss is found to agree closely with that obtained via the Finite Element Method (FEM). Unlike the FEM which requires considerable computational time and power to solve, we demonstrate that the analytical method proposed here can easily be applied and it gives sufficiently accurate result.
机译：我们提出了一种简单的分析方法来计算弯曲介质矩形波导中的衰减。首先，通过确定每单位长度的平均功率损耗与沿波导传播的平均功率之比得出衰减常数的近似公式。由于在导出过程中将波导简化为平板，因此可以忽略结构四个边缘的损耗。为了解决这些损失，已经采用了扰动理论。发现总损耗与通过有限元方法（FEM）获得的损耗非常一致。与需要花费大量计算时间和能力来解决的有限元方法不同，我们证明了此处提出的分析方法可以轻松应用，并且给出足够准确的结果。

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