Systematic Design of Bandstop Power Distribution Network Using Resonant Vias

Abstract

A systematic design method is proposed to achieve the optimal design of bandstop power delivery network (PDN) using resonant vias in a multilayered printed circuit board (PCB). With the proposed equivalent-circuit model, design equations, and design charts, the geometrical structure of a resonant viatype bandstop structure can be quickly designed according to the desired stopband bandwidth and isolation level. Wideband bandstop PDN designs using the resonant vias in standard fourlayer PCB are fabricated and measured to demonstrate the effectiveness of proposed design method.Index Terms-Noise isolation, power delivery network (PDN), resonant via.