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Nuts & Volts Magazine (July 2018)

Filter Basics: Stop, Block, and Roll(off)

By H. Ward Silver    View Digital Edition  


A casual observer might think that wireless systems consist primarily of filters connected by the occasional bit of circuit. Block diagrams of transceivers often include as many filters as any other function. This is true at the system level, just as it is at the circuit level — and many circuits behave in a filter-like way, whether intended to be a filter or not! That makes understanding filter basics important for wireless success.

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