Adjustable metamaterial cloaking using an elastic crystal

Author

Dongheok Shin ; Urzhumov, Y. ; Youngjean Jung ; Kyoungsik Kim ; Smith, David R.

Author_Institution

Sch. of Mech. Eng., Yonsei Univ., Seoul, South Korea

fYear

2013

fDate

5-8 Nov. 2013

Firstpage

331

Lastpage

332

Abstract

We introduce a microwave cloak composed of smart metamaterials whose electromagnetic properties can be effectively changed by mechanical deformation. Against mechanical deformations, our smart metamaterials self-adjust own flexible elasto-electromagnetic crystal structure for obeying transformation optics rules. With this idea, we built microwave cloak made of flexible silicone rubber tube array and experimentally demonstrated self-adjustable carpet cloak in broadband ranges (8-12GHz) with variable deformations.

Keywords

deformation; elasticity; intelligent materials; invisibility cloaks; microwave metamaterials; silicone rubber; adjustable metamaterial cloaking; elastic crystal; electromagnetic properties; flexible elasto-electromagnetic crystal structure; flexible silicone rubber tube array; frequency 8 GHz to 12 GHz; mechanical deformation; microwave cloak; self-adjustable carpet cloak; smart metamaterials; transformation optics rules; Broadband communication; Electromagnetics; Metamaterials; Microwave photonics; Optics; Permittivity; Rubber; Composite materials; Elasticity; Metamaterials; Microwave propagation; Photonic crystals;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings (APMC), 2013 Asia-Pacific

Conference_Location

Seoul

Type

conf

DOI

10.1109/APMC.2013.6695136

Filename

6695136