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Ultra-Wideband Communications: Fundamentals and Applications by Faranak Nekoogar

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2.4. Summary

Generation of subnanosecond pulses is a major challenge for UWB communications systems. Several pulse generation techniques for radar applications have been available for years, but most of them do not support the high peak voltage and the pulse repetition frequency required for UWB communications. However, the advancement in semiconductor switching technology has enabled the generation of narrow RF pulses for UWB applications. This chapter discussed the general principles for operation of semiconductor-based UWB pulse generators such as tunnel diodes, step recovery diodes, and drift step recovery diodes. We have intentionally limited our discussion of these pulse generators to an introductory level; interested readers will find ...

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