title: From Flexible and Stretchable Meta-Atom to Metamaterial: A Wearable Microwave Meta-Skin with Tunable Frequency Selective and Cloaking Effects.
abstract: This paper reports a flexible and stretchable metamaterial-based "skin" or meta-skin with tunable frequency selective and cloaking effects in microwave frequency regime. The meta-skin is composed of an array of liquid metallic split ring resonators (SRRs) embedded in a stretchable elastomer. When stretched, the meta-skin performs as a tunable frequency selective surface with a wide resonance frequency tuning range. When wrapped around a curved dielectric material, the meta-skin functions as a flexible "cloaking" surface to significantly suppress scattering from the surface of the dielectric material along different directions. We studied frequency responses of multilayer meta-skins to stretching in a planar direction and to changing the spacing between neighboring layers in vertical direction. We also investigated scattering suppression effect of the meta-skin coated on a finite-length dielectric rod in free space. This meta-skin technology will benefit many electromagnetic applications, such as frequency tuning, shielding, and scattering suppression.
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Siming
authors.initials: S
authors.lastname: Yang
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Mingda
authors.initials: M
authors.lastname: Yang
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Qiugu
authors.initials: Q
authors.lastname: Wang
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Jiming
authors.initials: J
authors.lastname: Song
authors.affiliation: Department of Electrical and Computer Engineering, Iowa State University, Ames, IA 50011.
authors.forename: Liang
authors.initials: L
authors.lastname: Dong