论文信息 - 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 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 ) thick with a peak absorption rate of 93% at 10 GHz and a full width at half maximum (FWHM) bandwidth of 970 MHz.

Hong-min Lee | Hyung-Sup Lee | Hong-min Lee | Hyung-sup Lee

[1] T. Cui,et al. Ultrathin multiband gigahertz metamaterial absorbers , 2011 .

[2] Ekmel Ozbay,et al. Optically thin composite resonant absorber at the near-infrared band: a polarization independent and spectrally broadband configuration. , 2011, Optics express.

[3] Joungyoung Lee,et al. Ultra‐thin Polarization Independent Absorber Using Hexagonal Interdigital Metamaterial , 2012 .

[4] Willie J. Padilla,et al. A dual band terahertz metamaterial absorber , 2010 .

[5] Willie J Padilla,et al. A metamaterial absorber for the terahertz regime: design, fabrication and characterization. , 2008, Optics express.

[6] Helin Yang,et al. Design, simulation, and measurement of metamaterial absorber , 2010 .

[7] Willie J. Padilla,et al. Electrically resonant terahertz metamaterials: Theoretical and experimental investigations , 2007 .

[8] T. Cui,et al. Polarization-independent wide-angle triple-band metamaterial absorber. , 2011, Optics express.

[9] Willie J Padilla,et al. Perfect metamaterial absorber. , 2008, Physical review letters.

[10] R. Fante,et al. Reflection properties of the Salisbury screen , 1988 .

[11] Longjiang Deng,et al. A wide-angle planar metamaterial absorber based on split ring resonator coupling , 2011 .