Proposal of a microwave absorber using FSS with square loops

Abstract

With the rapid growth of wireless systems, studies involving electromagnetic wave absorbers have attracted great attention from researchers. Their applications range from indoor systems to military applications. In parallel with this growth, increasing studies on Frequency Selective Surfaces (FSS) allow their filtering properties to be applicable in several systems, such as reflecting antennas, bandpass radomes and electromagnetic wave absorbers. This work aims to study the use of FSS to design microwave absorbers. For the analysis the ANSYS HFSS software will be used, which provides transmission characteristics of the structure for a flat wave. Initial results will be presented, demonstrating the understanding of the effects analyzed.