A new method of generating ultra-wide-band electromagnetic pulses using a Tl2Ba2CaCu2O8 high Tc superconductor as a fast laser activated opening switch is presented. The superconductor is used as an opening switch with a current charged transmission line pulse forming network to produce jitter-free triggered square pulses which are radiated by an ultra-wide-band conical antenna. We report radiation and reception of pulses with center frequencies near 3.5 GHz and a bandwidth in excess of 80%. We also discuss how this technique can be used to assess various wide-band antenna designs.
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Lai et al. (1994) studied this question.
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