IEICE Electronics Express
Online ISSN : 1349-2543
ISSN-L : 1349-2543
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An adaptable UWB pulse generator for high-rate applications
Mehdi SalehiAbdolreza Nabavi
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JOURNAL FREE ACCESS

2007 Volume 4 Issue 8 Pages 232-237

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Abstract

This paper presents a general circuit structure based on piecewise constant approximation method for designing high-rate ultra-wideband (UWB) pulse generators. By changing the pulse duration and the number of approximation segments, both the bandwidth and the center frequency of UWB signals are tuned. The pulse generator modulates different carrier frequencies into signals with Gaussian envelop to spread the signal spectrum over the 3.1-10.6-GHz sub-bands. Also, the proposed modulator structure can be easily adopted to generate pulses with 528-MHz bandwidth within the three sub-bands in the 3.1-5-GHz range.

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© 2007 by The Institute of Electronics, Information and Communication Engineers
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