[1]于正永,陆华丽,唐万春.一种高选择性和小通带比的三通带三维频率选择表面[J].南京师大学报(自然科学版),2021,44(02):18-23.[doi:10.3969/j.issn.1001-4616.2021.02.004]
　Yu Zhengyong,Lu Huali,Tang Wanchun.A Tri-bandpass Three-Dimensional Frequency Selective Surfacewith High Selectivity and Small Band Ratios[J].Journal of Nanjing Normal University(Natural Science Edition),2021,44(02):18-23.[doi:10.3969/j.issn.1001-4616.2021.02.004]
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一种高选择性和小通带比的三通带三维频率选择表面()
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《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

卷:
第44卷
期数:
2021年02期
页码:
18-23
栏目:
·物理学·
出版日期:
2021-06-30

文章信息/Info

Title:
A Tri-bandpass Three-Dimensional Frequency Selective Surfacewith High Selectivity and Small Band Ratios
文章编号:
1001-4616(2021)02-0018-06
作者:
于正永1; 2; 陆华丽2; 唐万春2
(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)
Author(s):
Yu Zhengyong1; 2; Lu Huali2; Tang Wanchun2
(1.School of Computer and Communication,Jiangsu Vocational College of Electronics and Information,Huai’an 223003,China)(2.School of Physics and Technology,Nanjing Normal University,Nanjing 210023,China)
关键词:
频率选择表面; 三通带; 频率选择性; 通带比; 三维; 双极化
Keywords:
frequency selective surface(FSS); tri-passband;  frequency selectivity; band ratios; three-dimensional(3D); dual polarizations
分类号:
O59
DOI:
10.3969/j.issn.1001-4616.2021.02.004
文献标志码:
A
摘要:
基于微波滤波器电路拓扑设计了一种具有高选择性和小通带比的三通带三维频率选择表面(3D FSS). 该3D FSS的单元结构由空气方波导和介质方块组合而成,且介质方块上下端面均刻蚀3个同心方环. 由于单元结构上下端面谐振单元之间的电磁耦合作用,原有单一的谐振模式耦合分裂为奇模和偶模两种模式,产生了多个传输零极点,形成了3个二阶通带和3个二阶阻带,且频率选择性得到了大幅提升. 通过3个尺寸十分接近的方环设计,实现了小通带比. 为了弄清该3D FSS的工作原理,对传输极点处的表面电流分布进行了研究. 同时,探讨了所提出的3D FSS的加工和测量方法. 通过文献对比发现,该3D FSS具有高选择性、小通带比、良好的角度稳定性、双极化以及无栅瓣产生等优势.
Abstract:
A tri-passband three-dimensional frequency selective surface(3D FSS)with high selectivity and small band ratios is designed based on the topology of the microwave filter. The unit cell of the proposed 3D FSS consists of an air-filled square waveguide and a cuboid dielectric block,and three concentric square loops are printed on both the top and bottom layers. Due to electromagnetic coupling between the resonant elements on both the top and bottom layers,original single resonant mode will split into even- or odd-resonant modes,multiple transmission zeros/poles are introduced,three second-order passbands and stopbands are achieved,and its frequency selectivity is greatly improved. Square loops with very close sizes are designed to realize small band ratios. To understand the working principle of the proposed 3D FSS,the surface current distributions at the frequencies of transmission poles are investigated. Meanwhile,the fabrication and measurement methods of the proposed 3D FSS prototype are discussed. According to the literature comparison,the proposed 3D FSS has the advantages in high selectivity,small band ratios,good angular stability,dual polarizations and no grating lobes.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2020-09-24.
基金项目:江苏电子信息职业学院博士工作室资助项目、江苏高校“青蓝工程”(苏教师函[2020]10 号)、射频集成电路与系统创新团队(JSEIYC2020002)、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)、国家自然科学基金面上项目(61571232)、淮安市软件测试技术重点实验室(HAP201904).
通讯作者:于正永,工学博士,副教授、高级工程师,研究方向:电磁理论与数值分析、频率选择表面设计、天线设计等. E-mail:yonglly@sina.com
更新日期/Last Update: 2021-06-30