低散射超表面及其在缝隙天线中的应用
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- 英文论文题名：Low Scattering Metasurface and Its Application on Slot Antenna
- 论文作者：张迪 ; 张广 ; 张敏 ; 曹祥玉 ; 高军
- 英文论文作者：ZHANG Di ; ZHANG Guang ; ZHANG Min ; CAO Xiangyu ; GAO Jun ; Information and Navigation College ; Air Force Engineering University ; Military Representative Office at NO.765 Factory ; Unit 95880 of PLA
- 年：2017
- 作者机构：空军工程大学信息与导航学院;765厂军事代表室;95880部队;
- 论文关键词：超表面 ; 相位 ; 雷达散射截面 ; 增益 ; 缝隙天线
- 英文论文关键词：Metasurface ; phase ; radar cross section(RCS) ; gain ; slot antenna
- 会议召开时间：2017-05-08
- 会议录名称：2017年全国微波毫米波会议论文集（中册）
- 英文会议录名称：Proceedings of 2017 National Conference on Microwave and Millimeter Waves(NCMMW2017)
- 语种：中文
- 分类号：TN823.24
- 学会代码：ZDWB
- 会议名称：2017年全国微波毫米波会议
- 会议地点：中国浙江杭州
- 主办单位：中国电子学会
- 学会名称：中国电子学会微波分会
- 页数：4
- 文件大小：1057k
- 原文格式：D
- 会议级别：全国
摘要
提出了一种基于反射相位随机分布单元的低散射超表面,并将其应用于缝隙天线。在入射波照射下,不同尺寸单元会产生不同反射相位。通过调节单元尺寸,可以使超表面获得随机反射相位分布,扰乱电磁波的波前,使反射能量在空间形成较均匀分布,从而减小后向散射。所提出的超表面应用于缝隙天线中减缩RCS,全波仿真和实验结果表明缝隙天线的RCS在4GHz~7GHz的宽频带范围内得到了显著减缩。特别地,超表面扩大了天线的有效辐射口径,天线的增益提高了2.8d B。
A low scattering metasurface utilizing randomly distributed unit cells is proposed and applied on slot antenna. The different unit size can generate different reflection phase when illuminated by incident wave. By adjusting the unit size carefully, the uniformly distributed reflection phase can be obtained across the metasurface so that the wavefront of the incident electromagnetic wave could be distorted, resulting in an uniform dispersion of the reflection energy and backscatter RCS reduction. As a potential application, the proposed metasurface is employed to reduce the RCS of slot antenna. Both full wave simulation and measurement results indicate that the RCS of the slot antenna is reduced significantly in a broad band from 4GHz to 7GHz. Specially, the measured gain of the antenna is enhanced by 2.8d B since the effective radiation aperture is enlarged.
A low scattering metasurface utilizing randomly distributed unit cells is proposed and applied on slot antenna. The different unit size can generate different reflection phase when illuminated by incident wave. By adjusting the unit size carefully, the uniformly distributed reflection phase can be obtained across the metasurface so that the wavefront of the incident electromagnetic wave could be distorted, resulting in an uniform dispersion of the reflection energy and backscatter RCS reduction. As a potential application, the proposed metasurface is employed to reduce the RCS of slot antenna. Both full wave simulation and measurement results indicate that the RCS of the slot antenna is reduced significantly in a broad band from 4GHz to 7GHz. Specially, the measured gain of the antenna is enhanced by 2.8d B since the effective radiation aperture is enlarged.
引文
1 R.A.Shelby,D.R.Smith,and S.Schultz,Experimental verification of a negative index of refraction,Science,2001,292:77-79
2 C.L.Holloway,E.F.Kuester,J.A.Gordon,J.O’Hara,J.Booth,and D.R.Smith,An overview of the theory and applications of metasurfaces:the two-dimensional equivalents of metamaterials,IEEE Antennas Propagat.Mag.,2012,54:10-35
3 M.Paquay,J.C.Iriarte,I.Ederra,R.Gonzalo and P.de Maagt,Thin AMC structure for radar cross-section reduction,IEEE Trans.Antennas Propag.,2007,55:3630-3638
4 Arezou Edalati,and Kamal Sarabandi,Wideband,wide angle,polarization independent RCS reduction using nonabsorptive miniaturized-element frequency selective surfaces,IEEE Trans.Antennas Propag.,2014,62:747-754
5 H.Mirshahram,and W.Qun,Polarization-dependent artificial magnetic conductor structures using asymmetrical frequency selective surface,IEEE International Symposium on Microwave,Antenna,Propagation and EMC Technologies for Wireless Communications(MAPE),2009:707-710
6 Q.Cheng et al.,A metasurface for RCS reduction,in Proc.8th Eu CAP,The Hague,The Netherlands,2014:276–277.
7 Junming Zhao,Boyu Sima,Nan Jia,Bo Zhu,Tian Jiang,and Yijun Feng,Flexible low scattering metasurface utilizing randomly distributed elements of variable sizes,IEEE International Workshop on Electromagnetics:Applications&Student Innovation Competition,2016
8 Yi-Chuan Song,Jun Ding,Chen-Jiang Guo,Yu-Hui Ren,and Jia-Kai Zhang,Ultra-broadband backscatter radar cross section reduction based on polarization-insensitive metasurface,IEEE Antennas and Wireless Propagation Letters,201615:329-331.
2 C.L.Holloway,E.F.Kuester,J.A.Gordon,J.O’Hara,J.Booth,and D.R.Smith,An overview of the theory and applications of metasurfaces:the two-dimensional equivalents of metamaterials,IEEE Antennas Propagat.Mag.,2012,54:10-35
3 M.Paquay,J.C.Iriarte,I.Ederra,R.Gonzalo and P.de Maagt,Thin AMC structure for radar cross-section reduction,IEEE Trans.Antennas Propag.,2007,55:3630-3638
4 Arezou Edalati,and Kamal Sarabandi,Wideband,wide angle,polarization independent RCS reduction using nonabsorptive miniaturized-element frequency selective surfaces,IEEE Trans.Antennas Propag.,2014,62:747-754
5 H.Mirshahram,and W.Qun,Polarization-dependent artificial magnetic conductor structures using asymmetrical frequency selective surface,IEEE International Symposium on Microwave,Antenna,Propagation and EMC Technologies for Wireless Communications(MAPE),2009:707-710
6 Q.Cheng et al.,A metasurface for RCS reduction,in Proc.8th Eu CAP,The Hague,The Netherlands,2014:276–277.
7 Junming Zhao,Boyu Sima,Nan Jia,Bo Zhu,Tian Jiang,and Yijun Feng,Flexible low scattering metasurface utilizing randomly distributed elements of variable sizes,IEEE International Workshop on Electromagnetics:Applications&Student Innovation Competition,2016
8 Yi-Chuan Song,Jun Ding,Chen-Jiang Guo,Yu-Hui Ren,and Jia-Kai Zhang,Ultra-broadband backscatter radar cross section reduction based on polarization-insensitive metasurface,IEEE Antennas and Wireless Propagation Letters,201615:329-331.