Fast and Accurate Radiation Calculations for Printed Circuit Boards and Packages

Abstract

Hybrid 2.5-D field solvers have been successfully applied to the analysis of high-speed printed circuit boards (PCB) and electronic packages. To enable electromagnetic interference and electromagnetic compatibility analysis, the solver needs to calculate the electromagnetic radiation in the near-field and far-field regions of the structure efficiently and accurately. We present two enhancements to the radiation calculations. The first is to use fast algorithms to accelerate the near-field and far-field calculations and the second is to correct the trace radiations by including the effect of the dielectric substrate. We demonstrate the accuracy and efficiency of these enhancements with three simulation examples.