High-Frequency Algorithmic Advances in EM Tools for Signal Integrity—Part 1

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  • Author: John Dunn
Only 30 years ago, electromagnetic (EM) simulation software was not a mainstream tool of the practicing electrical engineer, yet today it is essential for successful circuit design. EM simulation is used throughout the design process—creating and verifying models, checking the layout of the circuit for parasitic coupling issues, and verifying the final circuit’s performance. The most obvious reason for the growing use of EM simulation is its increasing ability to simulate large circuits of practical interest, made possible by more powerful computers. What is not as well known is that a number of new conceptual breakthroughs in EM theory have also contributed greatly to the increased power of EM simulators.