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Wide-band pass filter
Sep 06, 2018

A wide bandpass filter can be formed through a simple cascade of high-pass and low-pass parts, generally a simple design and performance choice, although this circuit can realize the possible number of circuits. To form a bandpass filter of + / -20 dB/decade, the first order high-pass and the first order low-pass parts are cascaded. A + / - 40 dB / 10 bandpass filter, a second - order high-pass filter and a second - order low-pass filter in series, and so on. This means that the order of the bandpass filter is made up of high-pass and low-pass filters, which are constrained by order.

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