A Band Pass Filter (BPF) is a device used to filter signals. If a user wants to pass the signals only between two specific frequencies he uses a Band Pass Filter. It passes only the signals falling between a set range and discriminates against the signals at frequencies lower and higher from that range.
These are two types of Band Pass Filter called Active and Passive. Active filters use external source of power to operate and employ active components like integrated circuits and transistors. On the other hand, Passive BPF requires no external source of power and uses passive components like capacitors and inductors.
The ranges set are called f1 and f2, the frequency comes at the center of these two and is called f0, and the range of frequencies falling between f1 and f2 is called ‘filter pass band.’ These are primarily used in wireless transmitters and receivers.
In transmitters, it enables data flow at desired speed because it limits the frequency of the output signals to the minimum necessary. In a receiver, it lets the frequencies of selected range to pass in the receiver to be decoded. It also optimizes the signal-to-noise ratio of the receiver.
Band Pass Filter in both transmitters and receivers allows the maximum number of signals to be transferred in a system along with this it also minimizes the interference among signals. You can view a wide range of Band Pass Filters online at the Raditek web site www.raditek.com. All types in different formats can be found. Research and choose one of our high-quality Band Pass Filters.