Uniplanar EBG structure with improved compact and wideband characteristics

摘要

In recent years, there has been growing interest in investigating electromagnetic bandgap (EBG) structures, and diverse kinds of EBG structures have been suggested for applications of microwave circuits and antennas [1??7]. To make EBG more suitable for actual applications, much effort has been devoted to realise compact size for the EBG structure. Uniplanar compact EBG (UC-EBG), as a successful compact EBG structure introduced by F. Yang et al., has been exclusively investigated because of the easy fabrication, low cost and compatibility with standard planar circuit technology [5??7].