Abstract
A unified 1D analysis model of hybrid planar-type electromagnetic-bandgap (EBG) structures is developed. Based on the analysis results, three types of hybrid design methods to reduce the cutoff frequency of the EBG structures are discussed, and design equations for their noise suppression bandwidths are derived. In order to simulate switching noise characteristics of the hybrid planar-type EBG structures, 2D circuit level models are developed and experimentally verified. With the developed circuit-level models and CMOS active switching devices, feasibility studies on the power distribution network design using the hybrid EBG structures are conducted. The hybrid EBG structure with series lumped chip inductors shows efficient noise suppression characteristics in both the frequency and time domains; however, it has potential limitations because of its generation of higher switching noise voltages depending on power supply connection configurations.
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