EXTRACTION OF EQUIVALENT-CIRCUITS FOR MICROSTRIP COMPONENTS AND DISCONTINUITIES USING THE GENETIC ALGORITHM

This letter introduces a new technique based on the application of the genetic algorithm (GA) for extracting the equivalent circuits-from me asured or computed S-parameters-that can be inserted into SPICE simula tions. The GA is a robust optimization tool that is shown to yield exc ellent results for discontinuities in microstrip lines, for instance a right-angled bend, and for microwave circuits, e.g., planar inductors and parallel plate capacitors.