Capacitance multipliers using tunable four terminal floating nullors

The paper presents new realization of grounded and floating capacitance multiplier circuits using tunable four-terminal floating nullors (TFTFNs). The resulting capacitance value is electronically tunable by means of two bias currents. The grounded capacitance multiplier uses one TFTFN and one grounded capacitor and the floating capacitance multipliers use two TFTFNs and one capacitor. The parasitic impedance effects on the proposed circuit are investigated. PSPICE simulation results are included which verify the workability of the proposed circuits.