Simulation of signal distortion in a microstrip line with a gap in the ground layer

Authors: Gizatullin Z. M., Gizatullin R. M., Shkinderov M. S., Arhipov A. O.

Annotation: Often, the distortion of information signals in printed circuit boards occurs due to resonant effects in interconnects. One of the reasons for resonance effects in the interconnects of the printed circuit board is the presence of gaps in the ground layer, which are present for connecting any elements, connectors, etc. A tool for numerical modeling is proposed and simulation models are developed for studying resonance effects in a microstrip line with a gap in the ground layer. The analysis of distortion of information signals in the microstrip line due to resonance effects is carried out. The simulation results are compared with experimental data and indicate that the models developed are sufficiently adequate. It is shown a reduction in distortion using a shunt capacitor in the slit.

Keywords: computing equipment, printed circuit board, microstrip line, resonance, grounding layer, interconnection, signal distortion, simulation, experiment