Single and dual band 77/95/110 GHz metamaterial absorbers on flexible polyimide substrate

被引：124

作者：

Singh, Pramod K. ^{[1
]}

Korolev, Konstantin A. ^{[2
]}

Afsar, Mohammed N. ^{[2
]}

Sonkusale, Sameer ^{[1
]}

机构：

[1] Tufts Univ, Dept Elect & Comp Engn, Nano Lab, Medford, MA 02155 USA

[2] Tufts Univ, Dept Elect & Comp Engn, High Frequency Mat Measurement & Informat Ctr, Medford, MA 02155 USA

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 26期

关键词：

integrated optics; light absorption; metamaterials; microwave photonics; millimetre wave devices; optical design techniques; optical resonators;

D O I：

10.1063/1.3672100

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Ultra thin millimeter-wave absorbers on flexible polyimide substrate utilizing metamaterials are implemented for single and dual frequency bands in an emerging frequency spectrum of 77, 95, and 110 GHz. The dual band absorber is designed using a novel approach of imbedding high frequency resonator inside low frequency resonator capable of absorbing electromagnetic energy at both 77 and 110 GHz bands simultaneously. The total thickness of the absorber is just 126 mu m (almost 1/20th of the wavelength). Measured peak absorptions for single frequency absorbers are 92, 94, and 99% at 77.2, 94.8, and 109.5 GHz, respectively, and for dual band absorber 92% at 77 GHz and 94% at 109.8 GHz. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3672100]

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