阻抗波导传输特性分析的一种有效而简单的解析模型
An Efficient and Simple Analytical Model for Analysis of Propagation Properties in Impedance Waveguides
摘要：
本文用解析法和数值法研究了具有可调人工阻抗面的平行板波导的传输特性。阻抗表面包括在具有嵌入式金属通孔的电介质板上的贴片阵列。表面的可调谐性是通过变容二极管实现的。给出了可调谐人工阻抗表面的简单设计方程以及TE和TM模的色散方程。在三种不同的制度：多模波导，单模波导，和低于截止波导的传播特性进行了研究。数值模拟验证了分析结果。
英文摘要：
In this paper propagation properties of a parallel-plate waveguide with tunable artificial impedance surfaces as sidewalls are studied both analytically and numerically. The impedance surfaces comprise an array of patches over a dielectric slab with embedded metallic vias. The tunability of surfaces is achieved with varactors. Simple design equations for tunable artificial impedance surfaces as well as dispersion equations for the TE and TM modes are presented. The propagation properties are studied in three different regimes: a multi-mode waveguide, a single-mode waveguide, and below-cutoff waveguide. The analytical results are verified with numerical simulations.
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