A positive type CC-based universal biquadratic circuit configuration

This paper presents a universal biquadratic circuit using only positive type current conveyors (CCs) and grounded passive components. The circuit enables low-pass, band-pass, high-pass, band-stop and all-pass responses by the selection and addition of the circuit currents with no component matching constraints. Moreover the circuit parameters.0 and Q can be set orthogonally adjusting the circuit components. The biquadratic circuit enjoys very low sensitivity with respect to the circuit components. The achievement example is given together with simulation results by PSPICE.