An efficient and simple algorithm to restore passivity for measured S-parameters data

Signal Integrity is now an integral part of the design cycles for consumer electronics devices. One of the major issues in signal integrity is passivity check and restoration of passive devices. This paper will introduce a new efficient technique of passivity restoration based on finding the local minima in the singular value vs. frequency stemming from the system matrix. The proposed new technique for passivity enforcement has the potential to restore the passivity in a real or simulated system represented by S-parameters without making significant changes in the system´s original S-parameters or the systems characteristics.