A class of high-Q high-frequency two amplifier active RC network

Generalization schemes and illustrative examples are given for a class of high-
Q
high-frequency two amplifier active
RC
networks using all-pass circuits with either positive or negative gain constant. In this preliminary study, the
\omega_0
and
Q
degradations of the networks are compared with the state-variable filter. Experimental results for a bandpass filter application are included.