A modular segmentation approach for comprehensive electromagnetic modeling of the power distribution network

The accurate electromagnetic modeling of the power distribution network at the board level is critical for today's digital applications. In this work, we propose a modular approach for board power distribution network design. The proposed approach relies on the decomposition of the board metallization layers into parallel-plate polygons and the various geometric discontinuities introduced by vias, slots and splits in metallization planes, and the edges of the board. Electromagnetic models for the various segments are generated a-priori and are brought together in a physically consistent manner to yield a compact model for the board that lends itself to an expedient numerical solution toward the generation of a SPICE-compatible, broadband, frequency-dependent multi-port network. Numerical studies are presented that validate the proposed methodology and demonstrate its attributes.