| 摘要: |
| 基于高阶特性的频率选择表面（FSS）有更好的带宽展宽性，提出了利用高阶带通FSS的方法
来
设计具有宽频特性的带通FSS。设计了一种基于圆结构具有五层结构的FSS，利用仿真软件对
FSS单元进行计算和分析。分析结果表明：此五层结构的FSS具有三阶单通带性能，其绝对
带宽达到6.07 GHz，相对带宽达到72%，通带平稳光滑，通带内插损小，对不同角
度、
不同极化方式入射的电磁波保持很好稳定性。此FSS具有很稳定的宽频特性，从而验证了此
宽频带通FSS设计方法的可行性。 |
| 关键词: 频率选择表面 宽频 带通 稳定性 |
| DOI： |
|
| 基金项目:国家自然科学基金资助项目（50632030，60871027，60901029）
；国家重点基础研究发展计划(973计划)项目（2009CB623306）;陕西省电子信息系统综合集
成重点实验室基金资助项目(200905A) |
|
| Design of broadband band-pass frequency selective surfaces |
| LI Yu-qing,PEI Zhi-bin,QU Shao-bo,XU Zhuo,ZHOU Hang,LI Jun-sheng |
| () |
| Abstract: |
| Based on high order frequency selective surface(FSS) with the advantage of more
flexible spread of b
andwidth, the techniques for designing high order FSS is proposed to design band
-
pass FSS with broadband character. A structure unit with five-layer based on cir
cular cell is designed in this paper. The simulation software is used to simulat
e a
nd analyse the FSS. The results show that the five layers FSS structure has the
third-order band-pass property, with a 6.07 GHz 3 dB bandwidth and 72% r
elati
ve b
andwidth. The pass-band of the structure FSS is quite flat and smooth, in which
the insertion loss is low. Moreover, the FSS can keep stable performances under
different incident angles and polarization states. The stable and perfect broadb
and property of the FSS structure verifies the feasibility of the techniques for
d
esigning broadband band-pass FSS. |
| Key words: frequency selective surfaces broadband band-pass stability |
《电讯技术》编辑部 