As. Barlevy et Y. Rahmat-samii, Control of resonant bandwidth in frequency-selective surfaces by tilting the periodic elements, MICROW OPT, 21(2), 1999, pp. 114-117
The work presented in this letter shows the effects of tilting the periodic
elements in a frequency-selective surface (FSS). The intent is to show the
existence of another degree of freedom that can be used in designing PSS T
he analysis is done using the periodic Green's function as the kernel to an
integral equation, which is solved using the method of moments The example
presented in this letter is that of an FSS composed of thin dipoles. It is
shown that tilting the dipoles causes a slight shift in the resonant frequ
ency, as well as a reduction of the bandwidth. An empirical formula for the
bandwidth as a function of the tilt angle is given. Another effect of the
tilt is to allow the excitation of an additional resonance. This might or m
ight not be desirable, depending on the application. (C) 1999 John Wiley &
Sons, Inc.