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Design of a novel pulse generator for UWB applications

✍ Scribed by Fei Song; Yi Wu; Huailin Liao; Ru Huang

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
644 KB
Volume
50
Category
Article
ISSN
0895-2477

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✦ Synopsis

Abstract

This article presents a low‐cost ultra‐wideband (UWB) pulse generator that is built using commercially available discrete components mounted on a PTFE substrate. A novel pulse shaping technique is adopted, which uses Schottky barrier diodes to generate a Gaussian‐cosine pulse with desirable time duration and spectrum response. Generated baseband pulses then are up‐converted to a center frequency of 4 or 8 GHz by a passive mixer, and Binary Phase‐Shift Keying (BPSK) modulation scheme is utilized. The final generated pulse with a bandwidth (−10 dB) of more than 1 GHz satisfies the FCC spectrum mask very well without any extra filtering, and can operate in either 3.1–5 GHz low band or 6–10 GHz high band. © Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1857–1861, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23541

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