A new resistorless electronically tunable voltage-mode first-order phase equalizer

Phase equalizers also called all-pass filters are widely used to shift the phase of an analog signal without altering its magnitude. In this study, a new realization of phase equalizer using one current controlled conveyor (CCCII), one operational amplifier (op-amp) and two capacitors is presented. The proposed circuit does not use any resistors thus makes it suitable for integration. Also the pole frequency of the proposed circuit can be tuned electronically. Simulation results are included to verify theory.