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Understanding Ultra Wide Band Radio Fundamentals by Guerino Giancola - University of Rome La Sapienza, Maria-Gabriella Di Benedetto - University of Rome La Sapienza

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Chapter 1 Ultra Wide Band Radio Definition

Ultra Wide Band (UWB) radio is based on the radiation of waveforms, which are characterized by an instantaneous fractional energy bandwidth greater than about 0.20–0.25. In this chapter, we will analyze the fractional energy bandwidth principle and set the definition of UWB radio.

1.1 Fractional Bandwidth

The most common adoption of the term “Ultra Wide Band (UWB)” comes from the UWB radar world and refers to electromagnetic waveforms that are characterized by an instantaneous fractional energy bandwidth greater than about 0.20–0.25. To better understand this definition, we first need to define the energy bandwidth of the waveform. Let E be the instantaneous energy of the waveform; the energy bandwidth ...

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