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The design of a passive ultra-wideband (UWB) pulse generator using cascaded sections of shunt-mode step-recovery diodes with decreasing lifetimes is presented. This pulse generator circuit generates 241 ps, 5.6 V pulses at 10 MHz pulse repetition frequency without the use of an additional amplifier. This pulse generator can be used in UWB radar systems that require sub-nanosecond pulses at low pulse repetition rates.
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Chan et al. (2010) studied this question.
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