Ja. Reed et Dm. Byrne, FREQUENCY-SELECTIVE SURFACES WITH MULTIPLE APERTURES WITHIN A PERIODIC CELL, Journal of the Optical Society of America. A, Optics, image science,and vision., 15(3), 1998, pp. 660-668
We discuss a method for analyzing frequency-selective surfaces (FSS's)
consisting of an array of multiple apertures or patches per unit peri
odic cell. Based on the modal method, our method is unique in that the
multiple apertures or patches within a unit cell need not be identica
l in size or shape. Applying our technique to thin perfectly conductin
g sheets perforated with patterns of varying-length narrow rectangular
apertures, we demonstrate a pattern of slot apertures that produces a
double-resonance spectral transmission profile. (C) 1998 Optical Soci
ety of America.