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A method for generating balanced subnanosecond pulses is described. By using pulsed bias techniques to excite a step-recovery diode via a conventional ferrite balun transformer, a balanced step waveform can be taken directly from the diode itself, eliminating the requirement for a broadband output balun transformer. The resulting pulses are suitable for applications in broadband antenna excitation, time-domain reflectometry and high-speed sampling bridges.
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Lesha et al. (1995) studied this question.
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