Synthesis of Active RC Networks

Synthesis procedures are presented which establish that one grounded 3-terminal negative-impedance converter, embedded in an unbalanced grounded RC structure, is sufficient to realize 1) any driving-point function, 2) any two of the four short-circuit admittance parameters of a two-port network, and 3) certain sets of short-circuit admittance parameters of an -terminal network, where each of the parameters is specified as the ratio of any two polynominals in the complex-frequency variable, with real coefficients. Furthermore, the required RC networks can always be made to take the form of grounded ladder-type structures, some of which, in particular cases, reduce to two-terminal admittances.