High-impedance electromagnetic surfaces with a forbidden frequency band

被引：3023

作者：

Sievenpiper, D ^{[1
]}

Zhang, LJ

Broas, RFJ

Alexópolous, NG

Yablonovitch, E

机构：

[1] HRL Labs, Malibu, CA 90265 USA

[2] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90095 USA

[3] Univ Calif Irvine, Dept Elect & Comp Engn, Irvine, CA 92697 USA

来源：

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 1999年 / 47卷 / 11期

关键词：

antennas; corrugated surfaces; photonic bandgap; surface impedance; surface waves; textured surfaces;

D O I：

10.1109/22.798001

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：

A new type of metallic electromagnetic structure has been developed that is characterized by having high surface impedance. Although it is made of continuous metal and conducts de currents, it does not conduct ac currents within a forbidden Frequency band. Unlike normal conductors, this new surface does not support propagating surface waves, and its image currents are not phase reversed, The geometry is analogous to a corrugated metal surface in which the corrugations have been folded up into lumped-circuit elements, and distributed in a two-dimensional lattice, The surface can be described using solid-state band theory concepts, even though the periodicity is much less than the free-space wavelength. This unique material is applicable to a variety of electromagnetic problems, including new kinds of low-profile antennas.

引用

页码：2059 / 2074

页数：16

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