Abstract
Circuit solutions for a new subclass of fourth-order band-pass filters
have been developed, which are implemented on operational amplifiers and
have, among other things, paraphase outputs. Basic equations for their
transfer function are obtained. In the Micro-Cap environment, computer
simulation of the amplitude-frequency characteristics (AFC) was carried
out, which shows the possibility of independent adjustment, adjustment
of the bandwidth, uneven AFC and center frequency gain.