Progress In Electromagnetics Research M
ISSN: 1937-8726
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By L. Lu, S. Qu, H. Ma, F. Yu, S. Xia, Z. Xu, and P. Bai

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In this paper, a polarization-independent wide-angle planar metamaterial absorber exhibiting dual directional absorption is proposed. Measurement results indicate that the planar metamaterial absorber achieves absorptivities of 86.87% and 91.48% to the normally incident electromagnetic waves propagating in forward (+z) and backward (-z) directions, respectively. Due to geometry's fourfold rotational symmetry, the absorber is polarization-independent. Additionally, the absorber works well for a wide range of incident angles for both transverse electric and transverse magnetic polarizations. Besides its impressing performance, this planar metamaterial absorber is also extremely thin that it's thickness is approximately 1/32 of the working wavelength.

L. Lu, S. Qu, H. Ma, F. Yu, S. Xia, Z. Xu, and P. Bai, "A Polarization-Independent Wide-Angle Dual Directional Absorption Metamaterial Absorber," Progress In Electromagnetics Research M, Vol. 27, 91-201, 2012.

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