scholarly journals POLARIZATION-INSENSITIVE TRIPLE-BAND MICROWAVE METAMATERIAL ABSORBER BASED ON ROTATED SQUARE RINGS

2014 ◽  
Vol 145 ◽  
pp. 175-183 ◽  
Author(s):  
Guo-Dong Wang ◽  
Jun-Feng Chen ◽  
Xiwei Hu ◽  
Zhao-Quan Chen ◽  
Minghai Liu
Keyword(s):  
Metamaterial Absorber ◽  
Polarization Insensitive ◽  
Triple Band

Design of a polarization-insensitive triple-band metamaterial absorber

2019 ◽  
Vol 432 ◽  
pp. 65-70 ◽  
Author(s):  
Shijun Ji ◽  
Chengxin Jiang ◽  
Ji Zhao ◽  
Xinge Zhang ◽  
Qiuwei He
Keyword(s):  
Metamaterial Absorber ◽  
Polarization Insensitive ◽  
Triple Band

Design and Analysis of a Triple-band Non-zonal Polarization Electromagnetic Metamaterial Absorber

2021 ◽  
Vol 36 (6) ◽  
pp. 697-706
Author(s):  
Han Wu ◽  
Shijun Ji ◽  
Ji Zhao ◽  
Zhiyou Luo ◽  
Handa Dai
Keyword(s):  
Structural Parameters ◽  
Surface Current ◽  
Metamaterial Absorber ◽  
Copper Plate ◽  
Polarization Angle ◽  
Absorption Mechanism ◽  
Imaging Detector ◽  
Polarization Insensitive ◽  
Spectrum Imaging ◽  
Triple Band

A facile design of a novel triple-band electromagnetic metamaterial absorber (MMA) with polarization insensitive property is proposed in this paper. Each unit of the MMA consists of upper copper resonator and bottom copper plate with middle dielectric FR-4 between them. The MMA performs three absorption peaks at 16.919 GHz, 21.084 GHz and 25.266 GHz with absorption rates 99.90%, 97.76% and 99.18%, respectively. The influence of the main structural parameters on the frequencies and absorption rates is analyzed. The absorption mechanism of the absorber is explained by electric field, magnetic field and surface current distributions, which is supported by the electromagnetic parameters, affected with magnetic resonance. The polarization-insensitivity of TE wave is verified by observing the effects of the polarization angle change from 0-90º. The MMA can be applied in radiation, spectrum imaging detector, electromagnetic wave modulator, and so on.

Triple-band polarization-insensitive wide-angle ultra-thin planar spiral metamaterial absorber

2013 ◽  
Vol 113 (21) ◽  
pp. 213516 ◽  
Author(s):  
Xiaojun Huang ◽  
Helin Yang ◽  
Shengqing Yu ◽  
Jixin Wang ◽  
Minhua Li ◽  
...  
Keyword(s):  
Metamaterial Absorber ◽  
Wide Angle ◽  
Polarization Insensitive ◽  
Triple Band

scholarly journals A TRIPLE BAND POLARIZATION INSENSITIVE ULTRATHIN METAMATERIAL ABSORBER FOR S- C- AND X-BANDS

2019 ◽  
Vol 77 ◽  
pp. 187-194 ◽  
Author(s):  
Amit Kumar Singh ◽  
Mahesh Pandurang Abegaonkar ◽  
Shiban Kishen Koul
Keyword(s):  
Metamaterial Absorber ◽  
Polarization Insensitive ◽  
Triple Band

scholarly journals Design and Fabrication of a Triple-Band Terahertz Metamaterial Absorber

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1110
Author(s):  
Jinfeng Wang ◽  
Tingting Lang ◽  
Zhi Hong ◽  
Meiyu Xiao ◽  
Jing Yu
Keyword(s):  
Optical Communication ◽  
Transverse Magnetic ◽  
Metamaterial Absorber ◽  
Absorption Mechanism ◽  
Symmetric Configuration ◽  
Electric And Magnetic Fields ◽  
Polarization Insensitive ◽  
Band Absorption ◽  
High Absorption ◽  
Triple Band

We presented and manufactured a triple-band terahertz (THz) metamaterial absorber with three concentric square ring metallic resonators, a polyethylene terephthalate (PET) layer, and a metallic substrate. The simulation results demonstrate that the absorptivity of 99.5%, 86.4%, and 98.4% can be achieved at resonant frequency of 0.337, 0.496, and 0.718 THz, respectively. The experimental results show three distinct absorption peaks at 0.366, 0.512, and 0.751 THz, which is mostly agreement with the simulation. We analyzed the absorption mechanism from the distribution of electric and magnetic fields. The sensitivity of the three peaks of this triple-band absorber to the surrounding is 72, 103.5, 139.5 GHz/RIU, respectively. In addition, the absorber is polarization insensitive because of the symmetric configuration. The absorber can simultaneously exhibit high absorption effect at incident angles up to 60° for transverse electric (TE) polarization and 70° for transverse magnetic (TM) polarization. This presented terahertz metamaterial absorber with a triple-band absorption and easy fabrication can find important applications in biological sensing, THz imaging, filter and optical communication.

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