有源可调微波吸收体分析与优化

戚开南; 汪勇峰; 侯新宇; 陈军文

doi:10.13700/j.bh.1001-5965.2015.0211

有源可调微波吸收体分析与优化

doi: 10.13700/j.bh.1001-5965.2015.0211

戚开南^1,2,
汪勇峰^1,2,
侯新宇²,
陈军文^2, ,

1.
中国传媒大学信息工程学院, 北京 100024
2. 电磁散射重点实验室, 北京 100854

详细信息

作者简介:
戚开南(1986-),男,山东德州人,博士研究生,qiknan@163.com

通讯作者:
陈军文(1959-),男,河南新乡人,研究员,lixiaoshen@chinasarft.gov.cn,主要研究方向为雷达目标特性.

中图分类号: V221⁺.3;TB553
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出版历程
- 收稿日期: 2015-04-10
- 修回日期: 2015-05-08
- 网络出版日期: 2015-10-20

Analysis and optimization of active tunable microwave absorber

1.
School of Information Engineering, Communication University of China, Beijing 100024, China
2. Science and Technology on Electromagnetic Scattering Laboratory, Beijing 100854, China

摘要

摘要: 为解决无源雷达吸波材料带宽有限的问题,基于传输线理论设计了一种有源可调微波吸收体.该吸收体是在Salisbury屏的拓扑结构基础上,用基于PIN二极管可控的有源频率选择表面(FSS)代替传统的电阻层.反射率测量结果表明,通过改变二极管的偏置电流可以动态调节吸收体的最佳吸波频率;当偏置电流在0~0.5mA之间变化时,吸收体的最佳吸波频率在7~12.5GHz频率范围内动态调整.基于遗传算法,优化设计了一种具有双极化吸波特性的十字型可调微波吸收体,仿真结果表明该吸收体在5.6~17.6GHz范围内实现了最佳吸波频率的可控迁移.
- 传输线理论 /
- 微波吸收体 /
- 频率选择表面(FSS) /
- 偏置电流 /
- 优化
Abstract: In order to improve the limited band of passive radar absorbing materials, an active tunable microwave absorber was designed based on transmission line theory. The absorber was a planar structure based upon the topology of a Salisbury screen, but in which the conventional resistive layer was replaced by an active frequency selective surface (FSS) controlled by PIN diodes. Measured data of reflectivity are presented and show that the reflectivity response of the absorber can be controlled by changing bias current. When bias current changes from 0 to 0.5mA, the optimal absorbing frequency can be controlled over the frequency band from 7GHz to 12.5GHz. A double polarization tunable microwave absorber is optimized based on genetic algorithm, simulation results show that the reflectivity response of the absorber can be controlled over the frequency band from 5.6GHz to 17.6GHz.
- transmission line theory /
- microwave absorber /
- frequency selective surface (FSS) /
- bias current /
- optimization

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参考文献(16)

[1]	Knott E F,Shaeffer J F,Tuley M T.Radar cross section[M].2nd ed.Norwood:Artech House,1993:156-158.
[2]	Fante R L.Reflection properties of the salisbury screen[J].IEEE Transactions on Antennas and Propagation,1988,36(10):1443-1454.
[3]	du Toit L J.The design of Jaumann absorbers[J].IEEE Antennas and Propagation Magazine,1994,36(6):17-25.
[4]	Munk B A.Frequency selective surfaces:Theory and design[M].New York:Wiley,2000:15-50.
[5]	Rozanov K N.Ultimate thickness to bandwidth ratio of radar absorbers[J].IEEE Transaction Antennas Propagation,2000,48(8):1230-1234.
[6]	Chang T K,Langley R J,Parker E A.An active square loop frequency selective surface[J].IEEE Transaction Microwave and Guided Wave Letters,1993,3(10):387-388.
[7]	Tennant A,Chambers B.A single-layer tunable microwave absorber using an active FSS[J].IEEE Microwave and Wireless Components Letters,2004,14(1):46-47.
[8]	徐欧,朱敏.双层方环可电控FSS吸波屏设计和实验研究[J].电波科学学报,2009,24(5):837-843.Xu O,Zhu M.Design and measurement of active absorber using the double layer square loop FSS[J].Chinese Journal of Radio Science,2009,24(5):837-843(in Chinese).
[9]	高正平,饶力.电路模拟技术在吸波结构中的应用[J].电子科技大学学报,1998,27(2):576-579.Gao Z P,Rao L.Circuit analog technique applied to structural absorbers[J].Journal of University of Electronic Science and Technology of China,1998,27(2):576-579(in Chinese).
[10]	饶克谨,赵伯琳,高正平.电路模拟吸收材料-原理、特性及设计方法[J].电子科技大学学报,1995,24(2):164-170.Rao K J,Zhao B L,Gao Z P.Circuit analogue absorbing material principles,character and design[J].Journal of University of Electronic Science and Technology of China,1995,24(2):164-170(in Chinese).
[11]	Langley R J.Equivalent circuit model for arrays of square loops[J].IEEE Transaction Electronics Letters,1982,18(7):294-296.
[12]	王焕青.等效电路法分析频率选择表面的双频特性[J].系统工程与电子技术,2008,30(11):2054-2057.Wang H Q.Analysis of double properties of frequency selective surfaces by using equivalent circuit method[J].Systems Engineering and Electronics,2008,30(11):2054-2057(in Chinese).
[13]	Lee C K,Langley R J.Equivalent-circuit models for frequency-selective surfaces at oblique angles of incidence[J].IEEE Transaction Antennas,Microwave Circuits and Networks,1985,132(6):395-399.
[14]	Michalewicz Z,Krawczyk J B,Kazemi M,et al.Genetic algorithms and optimal control problem[C]∥Proceedings of 29th IEEE Conference on Decision and Control.Piscataway,NJ:IEEE Press,1990:1664-1666.
[15]	Weibe D S,Michielssen E,Goldberg D H.Genetic algorithm design of Pareto optimal broad band microwave absorbers[J].IEEE Transaction Electronics Compat,1996,38(3):518-524.
[16]	Chambers B.Optimum design of a Salisbury screen radar absorber[J].Electronics Letters,1994,30(16):1353-1354.