Title :
Bipolar waveform generator for time limited response when driving RC loads
Author :
van der Merwe, P.J. ; Cloete, J.H. ; van der Walt, P.W.
Author_Institution :
Univ. of Stellenbosch, Stellenbosch
Abstract :
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 timing 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.
Keywords :
VHF devices; antennas; capacitors; ground penetrating radar; waveform generators; antenna; bipolar VHF waveforms; bipolar waveform generator; compact circuit; driving RC loads; driving resistor-capacitor loads; ground penetrating radar system; time limited response;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20070826
