Selection of proper modes of an NRD guide using a perturbing boundary
Selection of proper modes of an NRD guide using a perturbing boundary
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使用扰动边界选择 NRD 波导的正确模式
DOI：
10.1109/tmag.2003.810339
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发表时间：
2003
影响因子：
2.1
通讯作者：
Hyun
中科院分区：
文献类型：
--
作者：
Jung;Jeong‐Hae Lee;C. Im;Hong Soo Kim;K. Choi;Hyun
提出了一种在非辐射介质波导分析中去除多余模式的新方法。这些模态是通过强制截断无限边界来限制有限元域而产生的。本文将证明，不需要的模式可以通过一个特殊的边界概念来过滤掉，即摄动边界条件。将该方法应用于求解非齐次NRD导轨和不存在解析解的梯形NRD导轨的传播常数。
A novel method to remove unwanted modes in the analysis of nonradiative dielectric (NRD) guide is proposed. Those modes are originated by the compulsory truncation of an infinite boundary to restrict finite-element domain. It will be shown that unwanted modes can be filtered out by a special boundary concept named a perturbing boundary condition. This method is applied to obtaining the propagation constant of inhomogeneous NRD guides and NRD guides with a trapezoidal cross section of which analytic solutions do not exist.