DESIGN OF PLANAR CIRCUIT STRUCTURES WITH AN EFFICIENT MAGNETOSTATIC-FIELD SOLVER

We introduce a highly efficient field solver for the calculation of th e quasi-static magnetic field in order to design lossless planar circu it elements with nearly arbitrary shape, The field solver is based on a finite-difference (FD) formulation of a scalar magnetic potential us ing potential partitioning surfaces (PPS's), The modeling of the quasi -static fields in distributed circuit elements leads to the developmen t of lumped element equivalent circuits in a very fast and efficient w ay, For structures with sizes far below the wavelength, the equivalent circuits can be derived in a direct way, For the field modeling of la rger structures, the quasi-static field solver can be used in a hybrid full-wave analysis as well, Numerical examples are presented for diff erent planar-circuit elements.