Customised broadband metamaterial absorbers for arbitrary polarisation

George Green Institute for Electromagnetics Research, School of Electrical and Electronic Engineering, University of Nottingham, Tower Building, University Park, Nottingham NG7 2RD, UK.
Optics Express (Impact Factor: 3.49). 10/2010; 18(21):22187-98. DOI: 10.1364/OE.18.022187
Source: PubMed


This paper shows that customised broadband absorption of electromagnetic
waves having arbitrary polarisation is possible by use of lossy cut-wire (CW)
metamaterials. These useful features are confirmed by numerical simulations in
which different lengths of CW pairs are combined as one periodic metamaterial
unit and placed near to a perfect electric conductor (PEC). So far metamaterial
absorbers have exhibited some interesting features, which are not available
from conventional absorbers, e.g. straightforward adjustment of electromagnetic
properties and size reduction. The paper shows how with proper design a broad
range of absorber characteristics may be obtained.

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    • "The absorbing performance was also confirmed by numerical simulations, demonstrating the possibility that conductively lossy CW elements can work as wave absorbers in realistic applications. The CW-based metamaterial absorbers have several important features, e.g., simple geometry , arbitrary enhancement or reduction of the absorbing performance and multiple band operation (see [13] "
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