Departmental Papers (ESE)

Abstract

Metamaterial surfaces can be conceptualized by 2-dimensional periodic arrangement of many small flat inclusions on an otherwise homogeneous host surface. Electromagnetic properties of such metamaterial plates, which can indeed be regarded as frequency-selective surfaces, are influenced by the shape and geometry of these inclusions. When a metamaterial surface is closely placed above a perfectly conducting plate, at certain band of frequency, this structure may possess high surface impedance at its top surface, and thus providing a high-impedance ground plane (HIGP). The center frequency and bandwidth over which such high-impedance electromagnetic surface is achieved depend on inclusion shapes and compositions, among other parameters. By placing a resistive sheet on top of this surface, we can achieve a thin structure that can be an efficient absorber for incident electromagnetic energy.

Document Type

Conference Paper

Date of this Version

June 2002

Comments

Copyright 2002 IEEE. Reprinted from the 2002 IEEE Antennas and Propagation Society International Symposium Volume 2, pages 392-395.
Publisher URL: http://ieeexplore.ieee.org/xpl/tocresult.jsp?isNumber=21869&page=6

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Date Posted: 05 November 2004

This document has been peer reviewed.