Magnification of subwavelength field distributions at microwave frequencies using a wire medium slab operating in the canalization regime

被引：72
作者：
Ikonen, Pekka
Simovski, Constantin
Tretyakov, Sergei
Belov, Pavel
Hao, Yang
机构：
[1] Aalto Univ, Radio Lab SMARAD, FI-02015 Helsinki, Finland
[2] Queen Mary Univ London, London E1 4NS, England
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 10期
基金：
英国工程与自然科学研究理事会;
关键词：
D O I：
10.1063/1.2767996
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Authors demonstrate numerically the magnification of subwavelength field pattern using a wire medium slab operating in the canalization regime. The magnifying slab is implemented by radially enlarging the distance between adjacent wires, and the operational frequency is tuned to coincide with the Fabry-Perot resonance condition. The near-field pattern of a complex-shaped source is canalized over an electrical distance corresponding roughly to three wavelengths (3 lambda), and the pattern details are magnified by a factor of 3. The performance is also studied at several frequencies deviating from the one of the Fabry-Perot resonance. (C) 2007 American Institute of Physics.
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