Advances in Ebg Design Concepts Based on Planar Fss Structures

This paper presents an overview of the various applications of planar Frequency Selective Surfaces (FSS) to the synthesis of Electromagnetic Bandgap (EBG) structures that act as metamaterials, such as Artificial Magnetic Conductors (AMCs). Over the past few years, many designs such as singleand dual-band AMC surfaces, tunable AMC surfaces, angularly stable AMC surfaces, ultra-thin EBG absorbers, and EBG metaferrite materials, to name a few, have been investigated and developed successfully at the Pennsylvania State University (PSU) Computational Electromagnetics and Antennas Research Lab (CEARL) [1]. Additionally, the most current research presented here examines the ability to utilize an EBG AMC surface to realize a low-profile conformal antenna system that is tunable over an octave bandwidth from 1.2 to 2.3 GHz. An overview of both the previous work and the current EBG with antenna designs will be presented here.