厚金属屏蔽中加载介电槽的矩形波导

2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM) Pub Date : 2019-01-01 DOI:10.23919/USNC-URSI-NRSM.2019.8713050

Abdulaziz H. Haddab, E. Kuester, C. Holloway

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引用次数: 2

摘要

基于狭缝比自由空间波长小的原理，利用解析近似法对嵌在矩形波导中的厚导电膜片中介电负载狭缝的谐振传输进行了建模。像理论将这个问题与由这样的槽阵列组成的超表面联系起来。我们证明了与槽的基模相关的普通(Fabry-Perot)传输共振的存在，以及涉及槽中高阶模的极窄带(Fano)共振。通过全波数值模拟和实验测量验证了理论预测。

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Rectangular Waveguide Loaded with a Dielectric Slot in a Thick Metallic Shield

Resonant transmission through a dielectric-loaded slot in a thick conducting diaphragm embedded in a rectangular waveguide is modeled using an analytical approximation based on the slot being small compared to a free space wavelength. Image theory relates this problem to a metasurface consisting of an array of such slots. We demonstrate the existence of ordinary (Fabry-Perot) transmission resonances associated with the fundamental mode of the slot, as well as extremely narrow-band (Fano) resonances involving the higher-order modes in the slot. The theoretical predictions are confirmed through full-wave numerical simulation and by experimental measurement.

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来源期刊

2019 United States National Committee of URSI National Radio Science Meeting (USNC-URSI NRSM)

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