J. Sieiro, J. López-Villegas, M. N. Vidal, J. A. Osorio, T. Carrasco, S. Ahyoune
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Ab initio adaptive meshing for planar passive component modeling
An ab initio technique for the meshing of planar radiofrequency and microwave circuits is described in this work. It is based on the analytical study of the current crowding phenomena that takes place inside the component. By using the mutual coupling inductive terms between metal strips, the ratio of the AC resistance due to proximity effects over the DC resistance can be evaluated for each metal strip. In such evaluation, it is not required an explicit solution of currents and charges at any part of the circuit. Then, the number of mesh cells assigned to a given metal strip depends on the value of the ratio. This technique is applied to the computation of losses in high Q inductors implemented in a Low Temperature Co-fired Ceramics Technology.