Nonlinear signal processing with carrier domain devices

A new design method for nonlinear signal processing circuits is presented. The principle is based on carrier domain moving, occurring in a planar transistor structure of special design. The employed geometries are variants of the geometry employed by Smith (1975) for his carrier domain multiplier. The design method involves the calculation of the domain locus corresponding to a predetermined arbitrary transfer function. The method has been applied to two examples, which have been realized in practical devices.