Open AccessPolarization-independent wide-angle triple-band metamaterial absorber
Author(s) -
Xiaopeng Shen,
Tie Jun Cui,
Junming Zhao,
Hui Feng,
Wei Jiang,
Hui Li
Publication year - 2011
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.009401
Subject(s) - optics , materials science , metamaterial absorber , polarization (electrochemistry) , ground plane , metamaterial , dielectric , microwave , transverse plane , resonator , c band , fabrication , optoelectronics , absorption (acoustics) , physics , tunable metamaterials , telecommunications , chemistry , structural engineering , quantum mechanics , computer science , antenna (radio) , engineering , medicine , alternative medicine , pathology
We report the design, fabrication, and measurement of a microwave triple-band absorber. The compact single unit cell consists of three nested electric closed-ring resonators and a metallic ground plane separated by a dielectric layer. Simulation and experimental results show that the absorber has three distinctive absorption peaks at frequencies 4.06 GHz, 6.73 GHz, and 9.22 GHz with the absorption rates of 0.99, 0.93, and 0.95, respectively. The absorber is valid to a wide range of incident angles for both transverse electric (TE) and transverse magnetic (TM) polarizations. The triple-band absorber is a promising candidate as absorbing elements in scientific and technical applications because of its multiband absorption, polarization insensitivity, and wide-angle response.