VERTICAL CASCADED PLANAR EBG STRUCTURE FOR SSN SUPPRESSION

A novel vertical cascaded planar electromagnetic bandgap (EBG) structure is proposed for SSN suppression with the ultra-wideband at the restraining depth of -30 dB by analyzing the simultaneous switching noise (SSN) suppression mechanism and the equivalent circuit model for EBG structure. Moreover, the SSN suppression bandwidth can be broadened by using different novel EBG structures required by vertically cascading different planar EBG structures. In addition, the structure is verified to meet signal integrity (SI) by the time-domain simulation. The tested results show that the presented EBG is accordant to the simulated results of the theory method by the vector network analyzer. The proposed structures provide a new designing method for EBG structures to improve the ability of suppressing SSN.