Design of an ultra-thin bandwidth-optimized metamaterial absorber for EMC applications

We present a simple design and simulation of an ultra-thin metamaterial (MTM) absorber that operates around 11.5 GHz. The advantages of the absorber are the small overall thickness (~λ/70), the absence of a metallic back plate and its wide-angle good performance. More than two absorbing layers can be stacked to achieve nearly perfect absorbance. Moreover, by exploiting the scalability property of MTMs, a 2×2 array of unit cells is designed to form an extended unit cell that exhibits an enhanced bandwidth performance with FWHM of 6.57%. The designed microwave absorber can be utilized for EMC applications.

[1]  Somak Bhattacharyya,et al.  Bandwidth‐Enhanced Metamaterial Absorber Using Electric Field–Driven Lc Resonator For Airborne Radar Applications , 2013 .

[2]  N. Kantartzis,et al.  A polarization-/angle-insensitive, bandwidth-optimized, metamaterial absorber in the microwave regime , 2012 .

[3]  Willie J Padilla,et al.  Metamaterial Electromagnetic Wave Absorbers , 2012, Advanced materials.

[4]  Ji Zhou,et al.  An extremely broad band metamaterial absorber based on destructive interference. , 2011, Optics express.

[5]  Gennady Shvets,et al.  Large-area, wide-angle, spectrally selective plasmonic absorber , 2011, 1104.3129.

[6]  F Bilotti,et al.  Design of Miniaturized Narrowband Absorbers Based on Resonant-Magnetic Inclusions , 2011, IEEE Transactions on Electromagnetic Compatibility.

[7]  Yongzhi Cheng,et al.  A planar polarization-insensitive metamaterial absorber , 2011 .

[8]  R. Gong,et al.  Relation between dielectric spacer thickness and absorption feature in metamaterials absorber , 2010, 2010 International Symposium on Signals, Systems and Electronics.

[9]  Xiong Li,et al.  Investigation on the role of the dielectric loss in metamaterial absorber. , 2010, Optics express.

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

[11]  Filiberto Bilotti,et al.  An SRR based microwave absorber , 2006 .

[12]  David R. Smith,et al.  Electromagnetic parameter retrieval from inhomogeneous metamaterials. , 2005, Physical review. E, Statistical, nonlinear, and soft matter physics.

[13]  M Malathong,et al.  Metamaterial-based electromagnetic wave shielding , 2013 .