Title :
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
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;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2013 Asia-Pacific
Conference_Location :
Seoul
DOI :
10.1109/APMC.2013.6695136
