A scientist has a need for a bandpass filter for an Amateur Satellite band in the HF frequency band. It must have a center frequency of \(89.4 \mathrm{Mrad} / \mathrm{s}\) and a \(32 \mathrm{Mrad} / \mathrm{s}\) bandwidth. It must have a \(-85 \mathrm{~dB}\) per decade roll-off on both shoulders to avoid interference with other nearby users and a center frequency gain of \(20 \mathrm{~dB}\). Design a cascaded Butterworth bandpass filter. Use MATLAB to prove your results.