Abstract
A design procedure of the SCF based on the concept of the bilinear transformation is proposed. The final SCF structure is the same as that obtained by the LDI transformation, which means a structure simpler than the usual SCF obtained by the bilinear transformation and which requires no sample-and-hold circuits at the front and back of it when it is employed with the prefilter and the postfilter as the analog filter. The filter response does not suffer from the effect of the inexact simulation of the terminated resistance of the prototype LC filter which appears in the SCF realization based on the LDI transformation and the aperture effect is compensated. The filter performance realized by the proposed design procedure is tested by an experimental circuit with discrete elements.
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