中国物理B ›› 2009, Vol. 18 ›› Issue (4): 1598-1600.doi: 10.1088/1674-1056/18/4/051
• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇 下一篇
卢俊, 汪剑波, 孙贯成
Lu Jun(卢俊), Wang Jian-Bo (汪剑波)†, and Sun Guan-Cheng(孙贯成)
摘要: Frequency selective surface (FSS) is a two-dimensional periodic structure which has prominent characteristics of bandpass or bandblock when interacting with electromagnetic waves. In this paper, the thickness, the dielectric constant, the element graph and the arrangement periodicity of an FSS medium are investigated by Genetic Algorithm (GA) when an electromagnetic wave is incident on the FSS at a wide angle, and an optimized FSS structure and transmission characteristics are obtained. The results show that the optimized structure has better stability in relation to incident angle of electromagnetic wave and preserves the stability of centre frequency even at an incident angle as large as 80°, thereby laying the foundation for the application of FSS to curved surfaces at wide angles.
中图分类号: (Interactions of particles and radiation with matter)