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Short-range Wireless Communication, 3rd Edition by Alan Bensky

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Chapter 6

Receiver and digital radio architectures

Abstract

This chapter reviews various receiver topologies that have been developed for different performance levels and applications. While the superheterodyne receiver is dominant, the operation of tuned radio frequency and superregenerative receivers is also included. Superheterodyne radios have three dominant architectures—standard where a conventional IF frequency is employed, low IF where the IF is just above the baseband spectrum, and the direct conversion or zero IF receiver which is free of an image frequency. Digital, or software, radios are introduced here, considering their increasing adoption for short-range applications. Finally, we describe how repeaters can be used to extend ...

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