Title :
Metamaterial absorber with extended bandwidth configuration
Author :
Lee, Hwang Soo ; Lee, H.M.
Author_Institution :
Kyonggi Univ., Suwon, South Korea
Abstract :
In this paper, we present a method for extending the bandwidth of a metamaterial absorber (MMA) with multi-resonance 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 a MMA is effectively extended by combining five unit cell structures with different geometric dimensions into a co-planar unit cell. Experimental results show that the fabricated MMA is 0.8 mm (0.0026λ0) thick with a peak absorption rate of 93% at 10 GHz, and a full width at half maximum (FWHM) bandwidth of 940 MHz.
Keywords :
electromagnetic metamaterials; electromagnetic wave absorption; ELC resonator periodic arrangement; MMA absorption bandwidth; bandwidth 940 MHz; coplanar unit cell; electric-LC resonator periodic arrangement; extended bandwidth configuration; frequency 10 GHz; geometric dimensions; metamaterial absorber; multiresonance structure; square loop structure; Absorption; Bandwidth; Electric fields; Metamaterials; Microwave circuits; Periodic structures; Substrates;
Conference_Titel :
Antenna Technology (iWAT), 2013 International Workshop on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4673-2830-2
Electronic_ISBN :
978-1-4673-2829-6
DOI :
10.1109/IWAT.2013.6518351
