Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell
- Title
- Flexible and elastic metamaterial absorber for low frequency, based on small-size unit cell
- Author
- 이영백
- Keywords
- INFRARED PERFECT ABSORBER; NEGATIVE-INDEX; BAND; RESONANCES; REFRACTION; CLOAK
- Issue Date
- 2014-07
- Publisher
- Amer INST Physics
- Citation
- Applied Physics Letters, 2014, 105(4)
- Abstract
- 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.
- URI
- https://aip.scitation.org/doi/10.1063/1.4885095
- ISSN
- 0003-6951
- DOI
- 10.1063/1.4885095
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > PHYSICS(물리학과) > Articles
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