Overcoming the diffraction limit with a planar left-handed transmission-line lens

被引：611

作者：

Grbic, A ^{[1
]}

Eleftheriades, GV ^{[1
]}

机构：

[1] Univ Toronto, Edward S Rogers Sr Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 92卷 / 11期

基金：

加拿大自然科学与工程研究理事会;

关键词：

D O I：

10.1103/PhysRevLett.92.117403

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report experimental results at 1.057 GHz that demonstrate the ability of a planar left-handed lens, with a relative refractive index of -1, to form images that overcome the diffraction limit. The left-handed lens is a planar slab consisting of a grid of printed metallic strips over a ground plane, loaded with series capacitors (C) and shunt inductors (L). The measured half-power beamwidth of the point-source image formed by the left-handed lens is 0.21 effective wavelengths, which is significantly narrower than that of the diffraction-limited image corresponding to 0.36 wavelengths.

引用

页码：117403 / 1

页数：4

共 14 条

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