Tunable bilayered metasurface for frequency reconfigurable directive emissions

被引：83
作者：
Burokur, S. N. [1 ]
Daniel, J. -P. [2 ]
Ratajczak, P. [3 ]
de Lustrac, A. [1 ]
机构：
[1] Univ Paris 11, IEF, CNRS, UMR 8622, F-91405 Orsay, France
[2] Advanten, F-35510 Cesson Sevigne, France
[3] Orange Labs R&D, F-06320 Laturbie, France
来源：
APPLIED PHYSICS LETTERS | 2010年 / 97卷 / 06期
关键词：
copper; diodes; Fabry-Perot resonators; metamaterials; varactors; METAMATERIAL; ANTENNAS; SURFACES; CLOAKING;
D O I：
10.1063/1.3478214
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The directive emission from a bilayered metamaterial surface is numerically and experimentally reported. The LC-resonant metasurface is composed of both a capacitive and an inductive grid constituted by copper strips printed on both sides of a dielectric board. By the incorporation of varactor diodes in the capacitive grid, resonance frequency and phase characteristics of the metamaterial can be tuned. The tunable phase metasurface is used as a partially reflecting surface in a Fabry-Perot resonance cavity. Far field radiation patterns obtained by direct measurements show the reconfigurability of emission frequency while maintaining an enhanced directivity. (C) 2010 American Institute of Physics. [doi:10.1063/1.3478214]
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页数：3
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