Bipolar waveform generator for time limited response when driving RC loads

Van Der Merwe P.J. ; Cloete J.H. ; Van Der Walt P.W. (2007)


A method is presented whereby a compact circuit generates bipolar VHF waveforms of which the relative duration and amplitude of the positive and negative half cycles are adjustable. This facilitates fine tuning of the waveform for a time limited response when driving resistor-capacitor loads. Performance is verified by measurements on a system functioning as a ground penetrating radar system where the antenna presents such an equivalent load.

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