Abstract
This paper presents a new high input impedance voltage-mode universal biquadratic filter constructing with two differential difference current conveyor transconductance amplifiers (DDCCTAs), two grounded capacitors and two resistors. The presented filter can realize all the five standard biquadratic functions simultaneously without requiring any component matching conditions. Moreover, the circuit enjoys (i) the employment of two grounded capacitors, (ii) high input impedance and (iii) orthogonal tunability of the parameters resonance angular frequency (ωo) and quality factor (Q). HSPICE simulation results confirm the theoretical analysis.
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