FSS-Based Electromagnetic Absorbers for Stealth Application

Abstract

With advancements in Radio Frequency (RF) and wireless technologies, RF absorbing structures are needed, especially in areas such as electromagnetic interference (EMI) and strategic target detection technologies. With many wireless technologies used for communication, applications, such as stealth technologies, require frequency-dependent performance. This paper discusses the development of a wideband, polarization-insensitive, angularly stable circuit analog absorber based on the multiple-resonance concept. The design consisted of a dual layer of frequency-selective surfaces (FSS) with periodic unit cells loaded with lumped resistors.