Empipe™ Technical Briefs 1992-1997

Abstract

Empipe™ is a direct electromagnetic optimization software system driving the field solver em™ of Sonnet Software, Inc., harnessing the optimization engine OSA90™ of Optimization Systems Associates Inc. em is an efficient full-wave EM field solver for predominantly planar circuits. With full accuracy up to millimeter-wave frequencies, em simulates arbitrary geometries accounting for dispersion, coupling, surface waves, radiation, metallization and dielectric losses, etc. It is recommended whenever high simulation accuracy is needed in the design process. OSA90 features powerful and robust gradient-based optimizers: L1, L2, Huber, minimax, quasi-Newton, conjugate gradient, as well as non-gradient simplex, random and simulated annealing optimizers. An exclusive feature in later versions of OSA90 is Space Mapping. Empipe offers OSA's exclusive Geometry Capture™ tool for parametric design encapsulation of arbitrary structures. The user's graphical inputs to xgeom™ (Sonnet Software, Inc.) are processed to automatically define optimizable variables. The captured structures are as easy to use as conventional circuit elements. The EM analyses are automatically and efficiently managed by Empipe using our exclusive Datapipe™ technology, even across networks.