Ultrabroadband Microwave Metamaterial Absorber Based on Electric SRR Loaded with Lumped Resistors

An ultrabroadband microwave metamaterial absorber (MMA) based on an electric split-ring resonator (ESRR) loaded with lumped resistors is presented. Compared with an ESRR MMA, the composite MMA (CMMA) loaded with lumped resistors offers stronger absorption over an extremely extended bandwidth. The reflectance simulated under different substrate loss conditions indicates that incident electromagnetic (EM) wave energy is mainly consumed by the lumped resistors. The simulated surface current and power loss density distributions further illustrate the mechanism underlying the observed absorption. Further simulation results indicate that the performance of the CMMA can be tuned by adjusting structural parameters of the ESRR and lumped resistor parameters. We fabricated and measured MMA and CMMA samples. The CMMA yielded below −10 dB reflectance from 4.4 GHz to 18 GHz experimentally, with absorption bandwidth and relative bandwidth of 13.6 GHz and 121.4%, respectively. This ultrabroadband microwave absorber has potential applications in the electromagnetic energy harvesting and stealth fields.

[1]  Yongzhi Cheng,et al.  Low-frequency and broadband metamaterial absorber based on lumped elements: design, characterization and experiment , 2014 .

[2]  Haifeng Cheng,et al.  Analysis and design of wire-based metamaterial absorbers using equivalent circuit approach , 2013 .

[3]  Xi Chen,et al.  Design and analysis of lumped resistor loaded metamaterial absorber with transmission band. , 2012, Optics express.

[4]  X. Begaud,et al.  Design and measurement of a thin and light absorbing material for space applications , 2014 .

[5]  Ying Wang,et al.  Design, fabrication and measurement of a broadband polarization-insensitive metamaterial absorber based on lumped elements , 2012 .

[6]  Lin Wu,et al.  Infrared non-planar plasmonic perfect absorber for enhanced sensitive refractive index sensing , 2016 .

[7]  Haifeng Cheng,et al.  Broadband metamaterial absorber based on coupling resistive frequency selective surface. , 2012, Optics express.

[8]  Gong Rongzhou,et al.  A wideband metamaterial absorber based on a magnetic resonator loaded with lumped resistors , 2012 .

[9]  Fernando Las-Heras,et al.  A Thin C-Band Polarization and Incidence Angle-Insensitive Metamaterial Perfect Absorber , 2015, Materials.

[10]  Helin Yang,et al.  Perfect metamaterial absorber based on a split-ring-cross resonator , 2011 .

[11]  Yongzhi Cheng,et al.  A photoexcited broadband switchable metamaterial absorber with polarization-insensitive and wide-angle absorption for terahertz waves , 2016 .

[12]  G. Manara,et al.  Analysis and Design of Ultra Thin Electromagnetic Absorbers Comprising Resistively Loaded High Impedance Surfaces , 2010, IEEE Transactions on Antennas and Propagation.

[13]  David R. Smith,et al.  Metamaterials: Theory, Design, and Applications , 2009 .

[14]  Hong-min Lee,et al.  Resonant mode behavior of lumped-resistor-loaded electric-inductive-capacitive resonator and its absorber application , 2013 .

[15]  Haifeng Cheng,et al.  Low-frequency and broad band metamaterial absorber: design, fabrication, and characterization , 2011 .

[16]  Xiang Zhang,et al.  Symmetric and antisymmetric modes of electromagnetic resonators , 2007 .

[17]  Zhengyuan Bai,et al.  Theoretical analysis and design of a near-infrared broadband absorber based on EC model. , 2015, Optics express.

[18]  R. Langley,et al.  Equivalent circuit model for arrays of square loops , 1982 .

[19]  Shengming Wang,et al.  Polarization-Independent, Thin, Broadband Metamaterial Absorber Using Double-Circle Rings Loaded with Lumped Resistances , 2015, Journal of Electronic Materials.

[20]  Xiang Zhai,et al.  Theoretical Investigation of Broadband and Wide-Angle Terahertz Metamaterial Absorber , 2014, IEEE Photonics Technology Letters.

[21]  Somak Bhattacharyya,et al.  Triple band polarization-independent ultra-thin metamaterial absorber using electric field-driven LC resonator , 2014 .

[22]  Xiaojun Huang,et al.  Analysis of ultra-broadband metamaterial absorber based on simplified multi-reflection interference theory , 2015 .

[23]  K. Sarabandi,et al.  A one-layer ultra-thin meta-surface absorber , 2005, 2005 IEEE Antennas and Propagation Society International Symposium.

[24]  Omar M. Ramahi,et al.  A 3 - Dimensional Stacked Metamaterial Arrays for Electromagnetic Energy Harvesting , 2014 .

[25]  N. Fang,et al.  Ultrabroadband light absorption by a sawtooth anisotropic metamaterial slab. , 2011, Nano letters.