DESIGN AND OPTIMIZATION OF CPW CIRCUITS USING EM-ANN MODELS FOR CPW COMPONENTS

Accurate and efficient electromagnetically trained artificial neural-n etwork (EM-ANN) models have been developed for coplanar waveguide (CPW ) circuit components, Modeled components include: CPW transmission lin es (frequency dependent Z(o) and epsilon(re)), 90 degrees bends, short -circuit stubs, open-circuit stubs, step-in-width discontinuities, and symmetric T-junctions, These models allow for circuit design, simulat ion, and optimization within a commercial microwave circuit simulator environment, while providing the accuracy of electromagnetic (EM) simu lation, Design and optimization of a CPW folded double-stub filter and a 50-Omega 3-dB power divider circuit using the developed CPW EM-ANN models are demonstrated.