Influence of slot width on transmission properties of frequency selective surfaces
-
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.
-
Key words:
- slot width /
- frequency selective surfaces(FSS) /
- Floquet theorem
-
[1] Munk B A. Frequency selective surfaces:theory and design [M]. New York:John Wiley, 2000 [2] 王焕青,吕明云,武哲. 介质加载对频率选择表面传输特性影响的实验研究 .红外与毫米波学报,2005, 15(9):1122-1125 Wang Huanqing,Lü Mingyun,Wu Zhe. Experimental investigation into influence of dielectric loading on transmission properties of frequency selective surfaces . Journal of Infrared and Millimeter Waves, 2005, 15 (9) :1122-1125(in Chinese) [3] 朱崇灿. 天线[M]. 武汉:武汉大学出版社,1995 Zhu Chongcan. Antenna [M]. Wuhan:Wuhan University Press, 1995(in Chinese) [4] 龚中麟,徐承和.近代电磁理论[M].北京:北京大学出版社,1990:287-299 Gong Zhonglin, Xu Chenghe. Modern electromagnetic theory[M]. Beijing:Peking University Press, 1990:287-299(in Chinese) [5] Amitay N, Galindo V, Wu C P. Theory and analysis of phased array antennas[M]. New York:John Wiley, 1972 [6] Chen C C. Transmission through a conducting screen perforated periodically with apertures[J].IEEE Transactions on Microwave Theory and Techniques, 1970, 18(9):627-632 [7] 王焕青,祝明,武哲. 频率选择表面简介 第六届全国电磁兼学术会议论文集.武汉:中国造船工程学会,2004,24(24):301-304 Wang Huanqing, Zhu Ming, Wu Zhe. Introduction of frequency selective surfaces Proceedings of the 6th Electromagnetic Compatibility Academic Onference. Wuhan:China Society of Naval Architects and Machine Engineers, 2004,24(24):301-304(in Chinese) [8] 沈锡宽. 印制电路技术[M].北京:科学出版社,1987 Shen Xikuan. Technology of printed circuit board[M]. Beijing:Science Press, 1987(in Chinese) -
点击查看大图
计量
- 文章访问数: 2620
- HTML全文浏览量: 159
- PDF下载量: 1228
- 被引次数: 0
下载:
