Wavefade Filters - Product Overview

In modern digital communications, care must be taken when transmitting digital sequences of bits through the physical layer. In particular, systems engineers must be aware of the impact both the magnitude and phase response of the associated components and transmission lines will have on the quality of the received bits. When it comes to the filtering of digital signals, it is often assumed that Bessel‐Thompson (BT) filters are the best option in both transmitter and receiver applications because of their “maximally flat” group delay characteristics. As opposed to the generally higher stopband rejection achievable with the classic Chebychev, Butterworth and Elliptical filter types, BT filters achieve a significantly flatter group delay response at the expense of decreased stopband rejection.