Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell

Yoo, Y. J.; Zheng, H. Y.; Kim, Y. J.; Rhee, J. Y.; Kang, J. -H.; Kim, K. W.; Cheong, H.; Kim, Y. H.; Lee, Y. P.

doi:10.1063/1.4885095

상세 보기

Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell

Yoo, Y. J.;
Zheng, H. Y.;
Kim, Y. J.;
Rhee, J. Y.;
Kang, J. -H.;
... Cheong, H.;
외 3명

Citations

WEB OF SCIENCE

117

Citations

SCOPUS

137

초록

Using a planar and flexible metamaterial (MM), we obtained the low-frequency perfect absorption even with very small unit-cell size in snake-shape structure. These shrunken, deep-sub-wavelength and thin MM absorbers were numerically and experimentally investigated by increasing the inductance. The periodicity/thickness (the figure of merit for perfect absorption) is achieved to be 10 and 2 for single-snake-bar and 5-snake-bar structures, respectively. The ratio between periodicity and resonance wavelength (in mm) is close to 1/12 and 1/30 at 2 GHz and 400 MHz, respectively. The absorbers are specially designed for absorption peaks around 2 GHz and 400 MHz, which can be used for depressing the electromagnetic noise from everyday electronic devices and mobile phones. (C) 2014 AIP Publishing LLC.

키워드

INFRARED PERFECT ABSORBER; NEGATIVE-INDEX; BAND; RESONANCES; REFRACTION; CLOAK

제목: Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell

저자: Yoo, Y. J.; Zheng, H. Y.; Kim, Y. J.; Rhee, J. Y.; Kang, J. -H.; Kim, K. W.; Cheong, H.; Kim, Y. H.; Lee, Y. P.

DOI: 10.1063/1.4885095

발행일: 2014-07-28

유형: Article

저널명: Applied Physics Letters

권: 105

호: 4