An extension of Hazony and Nain´s synthesis procedure for n-ports

An extension of Hazony and Nain´s passive reciprocal n-port network synthesis procedure to the case of passive nonreciprocal n-port networks is outlined. Generally, more than the minimum number of reactive elements is required for the realization, but the resulting network possesses a series-parallel type of structure which may be useful in certain applications. Transformers are in general required.