Near-Field Focusing Plates

被引：4

作者：

Grbic, Anthony ^{[1
]}

Jiang, Lei

Merlin, Roberto ^{[2
]}

机构：

[1] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA

[2] Univ Michigan, FOCUS Ctr, Dept Phys, Ann Arbor, MI 48109 USA

来源：

2008 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM DIGEST, VOLS 1-4 | 2008年

关键词：

metamaterials; superlens; diffraction limit; near field; evanescent waves;

D O I：

10.1109/MWSYM.2008.4633140

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：

Using a modulated grating-like surface, referred to as a near-field focusing plate, we experimentally demonstrate focusing well beyond the diffraction limit. The reported near-field plate achieves a resolution of approximate to lambda(0)/20 at a frequency of 1.027 GHz, where lambda(0) is the free space wavelength. Along with these experimental results, the intrinsic properties of near-field plates are reviewed and a general procedure for designing them is outlined.

引用

页码：209 / +

页数：2

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