Design and Analysis of a Five-Band Polarization-Insensitive Metamaterial Absorber

Author:

Wu Han1,Ji Shijun1ORCID,Zhao Ji1,Jiang Chengxin1,Dai Handa1

Affiliation:

1. School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China

Abstract

A five-band metamaterial absorber (MMA) is presented. The proposed absorber consists of a three-layer structure of the top metal resonator, intermediate dielectric layer, and bottom metal plane. The top structure takes the centroid as the center and spreads out in a three-pronged shape with an average of 360°, and the ends bifurcate again. The calculation was carried out by the professional software to iteratively optimize the absorption effect of MMA in the microwave range. The results show that the MA has five peaks at resonant frequencies of 5.984 GHz, 12.232 GHz, 18.128 GHz, 18.414 GHz, and 20.592 GHz, with peaks of 0.9925, 0.9968, 0.9783, 0.9754, and 0.9975. By analyzing the electromagnetic field and surface current distribution of the absorber, the absorption mechanism is further verified, and the corresponding influence on the absorption spectrum is studied according to different polarization angles and incident angles. The effects of different resonator structure size and dielectric layer thickness on absorption rate were also discussed, and the distribution of electromagnetic fields is analyzed to reveal the existence of electric dipole resonance and magnetic resonance. Through comparing experiments and simulations, it is found that the peaks of the 1st, 2nd, and 5th have smaller absorption errors and frequency deviation, while the peaks of the 3rd and 4th have large ones. The five-band absorber has potential application in multiband electromagnetic stealth, bionic sensor, thermal radiation measuring instrument, and so on.

Funder

National Natural Science Foundation of China

Publisher

Hindawi Limited

Subject

Electrical and Electronic Engineering

Cited by 5 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. An ultra-thin, polarization free wide-angle stable quad-band metamaterial absorber for applications in C, X, and Ku bands;AEU - International Journal of Electronics and Communications;2023-11

2. An Ultrathin Polarization Free Asterick-Shaped Metamaterial Absorber with Quad-Band Characteristics;International Journal of Antennas and Propagation;2023-09-05

3. Wire-Grid and Sparse MoM Antennas: Past Evolution, Present Implementation, and Future Possibilities;Symmetry;2023-01-31

4. Design and analysis of a five-band metamaterial absorber;Journal of Electromagnetic Waves and Applications;2022-01-04

5. A review on the pursuit of an optimal microwave absorber;Facta universitatis - series: Electronics and Energetics;2021

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