基于电流变液的宽带可调超材料吸波体设计

doi:10.16180/j.cnki.issn1007-7820.2020.12.007

Abstract

Abstract:

In order to better apply the metamaterial absorber to the practice, a new kind of wideband tunable metamaterial absorber based on electrorheological fluid is proposed in this paper. The wideband and tunable absorption are achieved by loading resistor and electrorheological fluid with electrically tunable permittivity in metamaterial absorber. The simulation results showed that the absorption of absorber reaches up to 80% from 8.296 GHz to 15.128 GHz, and reache up to 90% from 11.5 GHz to 15 GHz, which realizes the property of wideband absorption. The absorption band gradually shifts to lower frequency with the increasing of electric field strength applied on electrorheological fluid, realizing the tunable property of wideband absorption. Moreover, the absorption property of absorber is insensitive to polarization due to its rotational symmetry.

Key words: metamaterial absorber, electrorheological fluid, wideband tunable, resistor, permittivity, electromagnetic simulation

CLC Number:

TN99

WANG Liansheng,XIA Dongyan,FU Quanhong,DING Xueyong,WANG Yuan. The Design of Wideband Tunable Metamaterial Absorber Based on Electrorheological Fluid[J].Electronic Science and Technology, 2020, 33(12): 32-37.

Figures/Tables 11

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The Design of Wideband Tunable Metamaterial Absorber Based on Electrorheological Fluid

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