高选择性三通带三维频率选择表面的研究

兰州理工大学学报 ›› 2021, Vol. 47 ›› Issue (5): 99-105.

• 自动化技术与计算机技术 • 上一篇下一篇

高选择性三通带三维频率选择表面的研究

于正永^*1,2, 陆华丽², 何晓凤³

1.江苏电子信息职业学院计算机与通信学院, 江苏淮安 223003;
2.南京师范大学物理科学与技术学院, 江苏南京 210023;
3.淮阴工学院电子信息工程学院, 江苏淮安 223001

收稿日期:2020-04-16 出版日期:2021-10-28 发布日期:2021-11-18
作者简介:于正永(1982-),男,江苏淮安人,博士,副教授.Email:yonglly@sina.com
基金资助:
江苏高校“青蓝工程”资助项目(苏教师函[2020]10号),江苏省“333工程”科研资助项目(BRA2018315),江苏省高等学校自然科学研究项目(19KJB510002),江苏省“333高层次人才培养工程”培养对象(苏人才办[2018]26号),淮安市软件测试技术重点实验室项目(HAP201904)

Investigation of highly-selective tri-passband three-dimensional frequency selective surface

YU Zheng-yong^1,2, LU Hua-li², HE Xiao-feng³

1. School of Computer and Communication,Jiangsu Vocational College of Electronics Information, Huai’an 223003, China;
2. School of Physics and Technology, Nanjing Normal University, Nanjing 210023, China;
3. Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, Huai’an 223001, China

Received:2020-04-16 Online:2021-10-28 Published:2021-11-18

摘要/Abstract

摘要： 提出一种双极化、高选择性的三通带三维频率选择表面(3D FSS).该3D FSS单元结构由四层方形介质筒组成,提供一个平行板波导(PPW)路径和三个方同轴波导(SCW)路径.由于每个SCW路径中两个相同短SCW谐振单元的电磁耦合,由SCW路径端面方形槽提供的原有单一谐振模式分裂为奇模和偶模谐振模式,产生了两个传输极点,由此形成了一个二阶通带,因此三个SCW路径能实现三个二阶通带.此外,由于不同路径之间的电磁波相位反相叠加产生了多个传输零点,提高了该FSS的频率选择性.为了解释该3D FSS的工作原理,研究了传输零极点处的电场矢量分布.仿真结果显示,所提出的3D FSS在横向电场(TE)和横向磁场(TM)极化模式下以0°到60°角度入射时具有稳定的频率响应,同时该3D FSS具有小通带比和较小的单元尺寸.

关键词: 频率选择表面(FSS), 三通带, 三维(3D), 高选择性, 双极化, 通带比

Abstract: A dual-polarized, highly-selective tri-passband three-dimensional frequency selective surface (3D FSS)is proposed. The unit cell of the proposed 3D FSS consists of four layers of square dielectric tubes, which provides one parallel plate waveguide (PPW) path and three square coaxial waveguide (SCW) paths. Owing to the electromagnetic coupling between two same short SCW resonant elements in each SCW path, original single resonant mode provided by the square slot on the end face of SCW path will split into even- and odd-resonant modes, introducing two transmission poles, and then forming a second-order passband. Thus, three SCW paths can realize three second-order passbands. In addition, the electromagnetic waves in different paths are combined out-of-phase,which can generate multiple transmission zeros and improve the frequency selectivity of this FSS.In order to explain the operating principle of the proposed 3D FSS, the distributions of electric-field vector at the frequencies of the transmission zeros/poles are investigated. The simulated results show that the proposed 3D FSS exhibits stable frequency responses to variations of incident angle from 0° to 60° under both transverse electric (TE) and transverse magnetic (TM) polarizations. Meanwhile,this 3D FSS has small band ratios and relatively compact unit cell size.

Key words: frequency selective surface (FSS), tri-passband, three-dimensional (3D), high selectivity, dual polarizations, band ratio

中图分类号:

TN713

于正永, 陆华丽, 何晓凤. 高选择性三通带三维频率选择表面的研究[J]. 兰州理工大学学报, 2021, 47(5): 99-105.

YU Zheng-yong, LU Hua-li, HE Xiao-feng. Investigation of highly-selective tri-passband three-dimensional frequency selective surface[J]. Journal of Lanzhou University of Technology, 2021, 47(5): 99-105.

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高选择性三通带三维频率选择表面的研究

Investigation of highly-selective tri-passband three-dimensional frequency selective surface

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