Tunable dual-band metamaterial absorber in the infrared rangebased on split-ring-groove array

2021 ◽  
Author(s):  
Jinlai Liu ◽  
Bingyi Liu ◽  
Shuai Tang ◽  
Jie Song ◽  
Yongyuan Jiang
Keyword(s):  
Metamaterial Absorber ◽  
Dual Band ◽  
Split Ring ◽  
Ring Groove

scholarly journals Ultrathin Dual-band Metamaterial Absorber

2021 ◽  
Author(s):  
Huan Liu ◽  
Rui Wang ◽  
Junyao Wang ◽  
Tianhong Lang ◽  
Bowen Cui
Keyword(s):  
Simple Structure ◽  
Structural Parameters ◽  
Metamaterial Absorber ◽  
Ring Resonators ◽  
Dual Band ◽  
Absorption Mechanism ◽  
Split Ring ◽  
Absorption Frequency ◽  
Polarization Insensitive ◽  
High Absorption

Abstract In this paper, an ultrathin dual-band metamaterial absorber (MMA) is designed. Its top layer consists of two nested split-ring resonators. The calculation result demonstrates that there are two distinct absorption peaks, which are 9.258GHz and 21.336GHz, with absorption rate of 99.78% and 96.91%. It also show polarization-insensitive for normal incident and its thickness is only 1.96% of the wavelength of its lowest absorption frequency. Moreover, we explore the MMA’s absorption mechanism and analyze the influence of main structural parameters on the MMA’s absorption characteristics. The proposed MMA has simple structure and high absorption, it can be applied in electromagnetic stealth, bolometers, sensor and other fields.

A dual-band polarization insensitive metamaterial absorber with split ring resonator

2013 ◽  
Vol 45 (7) ◽  
pp. 747-753 ◽  
Author(s):  
B. Ni ◽  
X. S. Chen ◽  
L. J. Huang ◽  
J. Y. Ding ◽  
G. H. Li ◽  
...  
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Metamaterial Absorber ◽  
Dual Band ◽  
Split Ring ◽  
Polarization Insensitive

scholarly journals A Dual Band Symmetric E-Shaped Split Ring Metamaterial Absorber for RF Energy Harvesting

2019 ◽  
Vol 8 (3) ◽  
pp. 3571-3574
Keyword(s):  
Energy Harvesting ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Metamaterial Absorber ◽  
Dual Band ◽  
Maximum Absorption ◽  
Absorption Mechanism ◽  
Split Ring ◽  
Rf Energy Harvesting ◽  
Rf Energy

In this paper, a new metamaterial absorber which comprises of a symmetrically E shaped split ring resonator patches at the top of the FR4 substrate of height 1.6mm for RF Energy Harvesting is proposed. The proposed design provides two absorption peak one at 5.8GHz with a maximum absorption of about 99% and other at 7.8GHz with a maximum absorption of about 92%. The absorption mechanism is investigated for the proposed metamaterial absorber. Also the polarization behavior of the absorber is also analyzed under various angles of incidence. The absorber has been tuned in such a way to have good broadband response in the UWB range

Single-peak-regulation and wide-angle dual-band metamaterial absorber based on hollow-cross and solid-cross resonators

2020 ◽  
Vol 91 (3) ◽  
pp. 30901
Author(s):  
Yibo Tang ◽  
Longhui He ◽  
Jianming Xu ◽  
Hailang He ◽  
Yuhan Li ◽  
...  
Keyword(s):  
Transverse Electric ◽  
Surface Current ◽  
Dielectric Substrate ◽  
Transverse Magnetic ◽  
Metamaterial Absorber ◽  
Absorption Peak ◽  
Dual Band ◽  
Single Peak ◽  
Wide Angle ◽  
Surface Current Density

A dual-band microwave metamaterial absorber with single-peak regulation and wide-angle absorption has been proposed and illustrated. The designed metamaterial absorber is consisted of hollow-cross resonators, solid-cross resonators, dielectric substrate and metallic background plane. Strong absorption peak coefficients of 99.92% and 99.55% are achieved at 8.42 and 11.31 GHz, respectively, which is basically consistent with the experimental results. Surface current density and changing material properties are employed to illustrate the absorptive mechanism. More importantly, the proposed dual-band metamaterial absorber has the adjustable property of single absorption peak and could operate well at wide incidence angles for both transverse electric (TE) and transverse magnetic (TM) waves. Research results could provide and enrich instructive guidances for realizing a single-peak-regulation and wide-angle dual-band metamaterial absorber.

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