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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Computational analysis of cutoff wavenumbers in rectangular waveguides filled with left-handed material and/or right-handed material
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Computational analysis of cutoff wavenumbers in rectangular waveguides filled with left-handed material and/or right-handed material

机译：填充左手材料和/或右手材料的矩形波导中截止波数的计算分析

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摘要

This paper investigates the cutoff wavenumbers and their geometric and dielectric dependence in rectangular waveguides filled with left-handed material (LHM) and/or right-handed material (RHM). A rigorous hybrid mode analysis of these structures produces the dispersion equations and the formulations of cutoff wavenumbers for the first three modes. It is shown how the geometric and dielectric parameters may influence the cutoff wavenumbers of the waveguides filled with LHM and/or RHM. The graphs of cutoff wavenumbers over a range of geometric and dielectric parameters sufficiently wide to cover most requirements of design and application have been plotted. The cutoff wavenumbers of waveguides with LHM increase as the thicknesses or the absolute values of permittivity of LHM increase. It is noted that the variation rules of cutoff wavenumbers in waveguides with LHM show different changing tendencies compared with the waveguides with RHM.
机译：本文研究了填充左手材料（LHM）和/或右手材料（RHM）的矩形波导中的截止波数及其几何和介电依赖性。对这些结构进行严格的混合模态分析，得出了前三个模态的色散方程和截止波数公式。示出了几何和介电参数如何影响填充有LHM和/或RHM的波导的截止波数。绘制了在足够宽的几何和介电参数范围内可以满足大多数设计和应用要求的截止波数图。随着LHM的厚度或介电常数的绝对值增加，具有LHM的波导的截止波数增加。注意，与具有RHM的波导相比，具有LHM的波导中的截止波数的变化规则表现出不同的变化趋势。

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