A Method for Extending the Bandwidth of Metamaterial Absorber

A Method for Extending the Bandwidth of Metamaterial Absorber

We present a method for extending the bandwidth of a metamaterial absorber (MMA) with multiresonance structure. The basic unit cell of the MMAs consists of a periodic arrangement of an electric-LC (ELC) resonator and a square loop structure. The absorption bandwidth of an MMA is effectively extended...

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Veröffentlicht in:International journal of antennas and propagation 2012-01, Vol.2012 (2012), p.1-7
Hauptverfasser: Lee, Hong-Min, Lee, Hyung-Sup
Format: Artikel
Sprache:eng
Schlagworte:
Antennas
Bandwidth
Boundary conditions
Design
Electromagnetism
Finite element analysis
Metamaterials
Permeability
Polymethyl methacrylates
Resonators
Unit cell
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Zusammenfassung:We present a method for extending the bandwidth of a metamaterial absorber (MMA) with multiresonance structure. The basic unit cell of the MMAs consists of a periodic arrangement of an electric-LC (ELC) resonator and a square loop structure. The absorption bandwidth of an MMA is effectively extended by combining five unit cell structures with different geometric dimensions into a coplanar unit cell. Experimental results show that the fabricated MMA is 0.8 mm (0.0026 λ0) thick with a peak absorption rate of 93% at 10 GHz and a full width at half maximum (FWHM) bandwidth of 970 MHz.
ISSN:1687-5869
1687-5877
DOI:10.1155/2012/859429