Bandpass Filter

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Bandpass Filter
Bandpass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range.
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Description Of Bandpass Filter
Bandpass filters are widely used in wireless transmitters and receivers. The main function of such an optical filter glass in a transmitter is to limit the bandwidth of the output signal to the band allocated for the transmission. This prevents the transmitter from interfering with other stations. In a receiver, a bandpass filter allows signals within a selected range of frequencies to be heard or decoded, while preventing signals at unwanted frequencies from getting through. An optical bandpass filter design also optimizes the signal-to-noise ratio and sensitivity of a receiver.
In both transmitting and receiving applications, well-designed bandpass filters, having the optimum bandwidth for the mode and speed of communication being used, maximize the number of signal transmitters that can exist in a system, while minimizing the interference or competition among signals.
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