Low sensitivity high-frequency active R filters

The pole of the operational amplifier is utilized to design second-order active filters. The design leads to two amplifier resistive structures. These filters have low sensitivities to active and passive elements and are tunable over a wide range of frequencies for medium and high
Q
. The independent control of
\omega_{0}, Q,
and
G_{o}
is an added feature of the circuit. The structure realizes low-pass and bandpass functions simultaneously. The proposed structure realizes the specified
\omega_{0}
and
Q
with lower resistance ratios. Good correlation has been observed between predicted and experimental results conducted at room temperature.