Transformation Media for Thin Planar Retrodirective Reflectors

被引：17

作者：

Gallina, Ilaria ^{[1
]}

Castaldi, Giuseppe ^{[1
]}

Galdi, Vincenzo ^{[1
]}

机构：

[1] Univ Sannio, Dept Engn, Waves Grp, I-82100 Benevento, Italy

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2008年 / 7卷

关键词：

Transformation media; metamaterials; corner reflectors; scattering;

D O I：

10.1109/LAWP.2008.2003541

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 letter, we address the design of thin planar retrodirective reflectors via transformation optics. Exploiting form-invariant transformations of Maxwell's equations, we derive the constitutive properties of an anisotropic and spatially inhomogeneous "transformation-medium" coating which, laid on a flat metallic surface, exhibits the retrodirective response typical of a dihedral corner reflector. The practical feasibility of the involved materials should be within reach of the fast-pacing "metamaterial" technology. The results of our investigations, validated via a full-wave study of the near- and far-field responses, could find interesting applications in radar, communication, and identification scenarios.

引用

页码：603 / 605

页数：3

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