An efficient and simple analytical model for analysis of propagation properties in impedance waveguides

被引：32
作者：
Luukkonen, Olli [1 ]
Simovski, Constantin R. [1 ]
Raisanen, Antti V. [1 ]
Tretyakov, Sergei A. [1 ]
机构：
[1] Aalto Univ, Ctr Smart Radios & Wireless Res SMARAD, Dept Radio Sci & Engn, FI-02015 Espoo, Finland
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2008年 / 56卷 / 07期
基金：
芬兰科学院;
关键词：
high-impedance surface; impedance waveguide; propagation properties; tunable;
D O I：
10.1109/TMTT.2008.925236
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
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: multimode waveguide, single-mode waveguide, and below-cutoff waveguide. The analytical results are verified with numerical simulations.
引用
收藏
页码：1624 / 1632
页数：9
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