Departmental Papers (ESE)
Title
Thin Absorbing Screens Using Metamaterial Surfaces
Document Type
Conference Paper
Date of this Version
June 2002
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.
Download
Date Posted: 05 November 2004
This document has been peer reviewed.
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
This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Pennsylvania's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.