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

电子科技 ›› 2020, Vol. 33 ›› Issue (12): 32-37.doi: 10.16180/j.cnki.issn1007-7820.2020.12.007

基于电流变液的宽带可调超材料吸波体设计

王连胜¹,夏冬艳²,付全红³,丁学用¹,汪源¹

^1. 三亚学院理工学院,海南三亚 572022
^2. 三亚学院财经学院,海南三亚 572022
^3. 西北工业大学理学院,陕西西安710072

收稿日期:2019-08-30 出版日期:2020-12-15 发布日期:2020-12-22
作者简介:王连胜(1982-),男,副教授。研究方向:电磁超材料设计及应用。|夏冬艳(1981-),女,讲师。研究方向:数据处理、建模及分析。|付全红(1982-),男,博士,讲师。研究方向:超材料设计及应用。
基金资助:
海南省自然科学基金(119MS074)

The Design of Wideband Tunable Metamaterial Absorber Based on Electrorheological Fluid

WANG Liansheng¹,XIA Dongyan²,FU Quanhong³,DING Xueyong¹,WANG Yuan¹

^1. Institute of Science and Technology,University of Sanya,Sanya 572022,China
^2. School of Economics,University of Sanya,Sanya 572022,China
^3. School of Natural and Applied Sciences,Northwestern Polytechnical University,Xi’an 710072,China

Received:2019-08-30 Online:2020-12-15 Published:2020-12-22
Supported by:
Natural Science Foundation of Hainan(119MS074)

摘要/Abstract

摘要：

为将超材料吸波体更好地应用于生产生活中,文中设计了一种基于电流变液的宽带可调超材料吸波体。通过在超材料吸波体中加载电阻器和介电常数电可调的电流变液实现宽带吸收和吸收频带可调。仿真结果表明,吸波体在8.296~15.128 GHz之间的吸收率超过了80%,在11.5~15 GHz之间的吸收率超过了90%,实现了电磁波的宽带吸收。随着电流变液外加电场强度的增加,其吸收频带逐渐往低频发生移动,实现了吸收频带的调控。此外,仿真证实,由于吸波体结构单元具有旋转对称性,其吸收特性具有极化无关性。

关键词: 超材料吸波体, 电流变液, 宽带可调, 电阻器, 介电常数, 电磁仿真

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

中图分类号:

TN99

王连胜,夏冬艳,付全红,丁学用,汪源. 基于电流变液的宽带可调超材料吸波体设计[J]. 电子科技, 2020, 33(12): 32-37.

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.

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基于电流变液的宽带可调超材料吸波体设计

The Design of Wideband Tunable Metamaterial Absorber Based on Electrorheological Fluid

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