Distributed loading effect for infrared FSS

Frequency selective surfaces (FSS) are traditionally resonant periodic antenna structures patterned on a surface for the purpose of spectral filtering. At infrared (IR) frequencies, FSS structures have been successfully demonstrated as both transmission filters and surface emissivity modifiers. In this paper, distributed loading effect for infrared FSS was investigated using four pure metals as distributed load: aluminum, gold, nickel, and titanium.