Summary
International Symposium on Antennas and Propagation
2008
Session Number:3D08
Session:
Number:3D08-1
Circuit Model Analysis for Traces Crossing Slotted Ground Plane
Jongkyung Lee, Kibum Jung, Yeonchoon Chung, Jaehoon Choi,
pp.-
Publication Date:2008/10/27
Online ISSN:2188-5079
Summary:
Recently, there has been a growing interest for slotted ground plane structures. It is common to introduce slots in the power/ground planes in high-speed printed circuit boards (PCBs) design. In mixed signal circuits, split power/ground planes can isolate a noisy digital circuit from the sensitive analog circuit. Slots in the power/ground planes are also employed in PCBs with multiple power supplies in order to provide DC isolation among different supplies [1]. However, power/ground partitioning generates undesired electromagnetic effects such as signal integrity (SI) degradation, electromagnetic interference (EMI) and ground bounce in general [2]. To understand these problems systematically, this paper proposes a simple and accurate equivalent circuit model, which provides clear insight into the coupling mechanism between the microstrip line and the slot.