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Band-pass filter

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Band-pass filter Empty Band-pass filter

Post by chinhkuqn Thu Nov 24, 2011 4:30 pm

frequencies outside that range.
Optical band-pass filters are of common usage.
An example of an analogue electronic band-pass filter is an RLC circuit (a resistor–inductor–capacitor circuit). These filters can also be created by combining a low-pass filter with a high-pass filter.[1]
Bandpass is an adjective that describes a type of filter or filtering process; it is frequently confused with passband, which refers to the actual portion of affected spectrum. Hence, one might say "A dual bandpass filter has two passbands." A bandpass signal is a signal containing a band of frequencies away from zero frequency, such as a signal that comes out of a bandpass filter.[2]
An ideal bandpass filter would have a completely flat passband (e.g. with no gain/attenuation throughout) and

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