Title :
An Ultrathin Electromagnetic Absorber Comprising Resistive Resonance Loops
Author :
Lin, Bao-Qin ; Tong, Chuang-ming ; Li, Wei ; Niu, Hong-bo ; Zhou, Hang
Author_Institution :
Inst. of Inf. & Navig., Air Force Eng. Univ., Xi´´an, China
fDate :
7/4/1905 12:00:00 AM
Abstract :
In this letter, we propose a novel ultrathin polarization-independent electromagnetic absorber and provide numerical simulation and experimental verification of the absorbing properties. The proposed absorber takes the form of periodic resistive resonance loops. The resonance loops, as a sort of effective loss magnetic currents, are placed in close proximity to the grounded surface. Numerical simulated and experimental results show that the overall thickness of the proposed structure is much less than centesimal wavelength, and the absorptivity at different incidences is kept well.
Keywords :
electromagnetic wave absorption; electromagnetic wave polarisation; numerical analysis; centesimal wavelength; magnetic currents; numerical simulation; periodic resistive resonance loops; resistive resonance loops; ultrathin polarization-independent electromagnetic absorber; Electromagnetic waveguides; Magnetic losses; Magnetic resonance; Reflection; Surface waves; Electromagnetic absorber; magnetic currents; resonance loops;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2012.2214754