Simple and accurate analytical model of planar grids and high-impedance surfaces, comprising metal strips or patches

被引：728

作者：

Luukkonen, Olli ^{[1
]}

Simovski, Constantin ^{[2
]}

Granet, Gerard ^{[3
]}

Goussetis, George ^{[4
]}

Lioubtchenko, Dmitri ^{[1
]}

Raisanen, Antti V. ^{[1
]}

Tretyakov, Sergei A. ^{[1
]}

机构：

[1] Aalto Univ, Dept Radio Sci & Engn, SMARAD CoE, FI-02015 Helsinki, Finland

[2] St Petersburg Inst Fine Mech & Opt, Dept Phys, St Petersburg 197101, Russia

[3] Univ Blaise Pascal, CNRS, LASMEA, F-63177 Aubiere, France

[4] Heriot Watt Univ, Inst Integrated Syst, Edinburgh EH14 AS, Midlothian, Scotland

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2008年 / 56卷 / 06期

基金：

芬兰科学院;

关键词：

analytical model; high impedance surface; oblique incidence excitation;

D O I：

10.1109/TAP.2008.923327

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：

Simple analytical formulas are introduced for the grid impedance of electrically dense arrays of square patches and for the surface impedance of high-impedance surfaces based on the dense arrays of metal strips or square patches over ground planes. Emphasis is on the oblique-incidence excitation. The approach is based on the known analytical models for strip grids combined with the approximate Babinet principle for planar grids located at a dielectric interface. Analytical expressions for the surface impedance and reflection coefficient resulting from our analysis are thoroughly verified by full-wave simulations and compared with available data in open literature for particular cases. The results can be used in the design of various antennas and microwave or millimeter wave devices which use artificial impedance surfaces and artificial magnetic conductors (reflect-array antennas, tunable phase shifters, etc.), as well as for the derivation of accurate higher-order impedance boundary conditions for artificial (high-) impedance surfaces. As an example, the propagation properties of surface waves along the high-impedance surfaces are studied.

引用

页码：1624 / 1632

页数：9

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