The method of active filtering to get wide band and high gain through staggered filtering based on band-pass filter
Zhang Jie · Journal of Shandong University of Technology · 2004
Introduces a method of active filter ing to get wide band an d high gain by staggered filtering based on band-pass filter. A wideband input is divided into several signals of different frequency band by many band-pass f ilters. Then, weighted handling of their corresponding subcircuists make these s ignals meet the requirements of bandwidth and gain. Finally, all the signals han dled are integrated into one for output meeting the requirements. This method solves the problem of conflict between wide frequency band an d high gain that cannot be solved by cascade connection of single-section active filter. Furthermore, signals can be modulated conveniently.