Voltage-mode quadrature oscillator using VD-DIBA active elements

The paper proposes novel voltage-mode quadrature oscillator employing modern active elements VD-DIBA (Voltage Differencing Differential Input Buffered Amplifier). The circuit utilizes only two active elements and two grounded capacitors. Frequency of oscillation and oscillation condition can be controlled orthogonally, thus without violating each other. The proposed circuit was experimentally verified using VD-DIBAs built out of discrete components. Results measured confirm all theoretical assumptions and they are included in the paper.