Nonreciprocal representation of the floating inductor with grounded-amplifier realisations

The floating inductor is approximated to by the nonreciprocal transmission matrix (1, Ls; 1/R, 1), where L = CR2 with R sufficiently large and CR2 constant. Representations of this matrix are obtained by a form of synthesis procedure and are realised with only one type of grounded operational amplifier. Results are given which show their performance in a lowpass filter.