北京航空航天大学学报 ›› 2006, Vol. 32 ›› Issue (12): 1427-1430.

• 论文 • 上一篇    下一篇

缝隙宽度对频率选择表面透波特性的影响

王焕青, 吕明云, 蒙志君, 武哲   

  1. 北京航空航天大学 航空科学与工程学院, 北京 100083
  • 收稿日期:2005-12-05 出版日期:2006-12-31 发布日期:2010-09-21
  • 作者简介:王焕青(1973-),女,山东莘县人,博士生,hqing w@163.com.
  • 基金资助:

    国家自然科学基金重大研究计划重点资助项目(90305026)

Influence of slot width on transmission properties of frequency selective surfaces

Wang Huanqing, Lü Mingyun, Meng Zhijun, Wu Zhe   

  1. School of Aeronautic Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2005-12-05 Online:2006-12-31 Published:2010-09-21

摘要: 从物理本质上分析了频率选择表面FSS(Frequency Selective Surfaces)单元的缝隙宽度对FSS平板透波特性的影响.FSS平板单元的缝隙越宽,则单元的谐振波长缩短就越多,谐振频率也随之升高.利用Floquet定理,计算分析了缝隙宽度对FSS平板透波特性的影响;采用蚀刻技术加工FSS平板小矩形缝隙单元.实验测试的结果表明,缝隙宽度变大时,谐振频率升高,同时,FSS平板的透波率和谐振带宽变大.实验数据与计算结果在误差允许的范围内基本一致.

Abstract: Influence of slot width on transmission properties of plannar FSS(frequency selective surfaces) was explained by physical essence. With the width of element slot in FSS increasing, it could shorten resonant wavelength of the element. Correspondingly it could increase the resonant frequency of the element. Influence of slot width on transmission properties of plannar FSS was calculated with Floquet theorem, and the small rectangle element was machined successfully by etching technique. Effects of the slot width on the transmission properties of FSS waspreliminarily explored by experiment. The experimental results show that the resonant frequency of FSS increases with the slot width, and the transmission ratio and resonant bandwidth is becoming greater. The experimental data accord with the computed results within error permissibility.

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