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Journal Achievements of Modern Radioelectronics №11 for 2015 г.
Article in number:
Generator with electronic control of ultra short pulse width
Keywords: ultra-short pulses step recovery diode generation of ultra wideband signals pulse-s width electronic control
Authors:
A.M. Bobreshov - Dr. Sc. (Phys.-Math.), Professor, Dean of Faculty of Physics, Voronezh State University. E-mail: bobreshov@phys.vsu.ru A.S. Zhabin - Assistant, Department of Electronics, Faculty of Physics, Voronezh State University. E-mail: zhabin@phys.vsu.ru V.A. Stepkin - Ph. D. (Phys.-Math.), Associate Professor, Department of Electronics, Faculty of Physics, Voronezh State University. E-mail: stepkin@phys.vsu.ru G.K. Uskov - Dr. Sc. (Phys.-Math.), Associate Professor, Department of Electronics, Faculty of Physics, Voronezh State University. E-mail: uskov@phys.vsu.ru Le Quang Tuc - Post-graduate Student, Faculty of Physics, Voronezh State University. E-mail: lequangtuc@gmail.com
Abstract:
The schematic of the ultra-shot pulse generator with width electronic control is suggested in the aticle. The width of formed impulses is determinate by the switching time of SRD from conducting state to nonconducting state. The research of operation of SRD in mode of ultra short pulses generation was done. Switching time depend on the operation mode, namely, the direct current value through diode. This dependence allows us to explain the processes in the SRD semiconductor structure, while pulses generate. The mechanism of tuning generator-s operating mode by the variable resistors was proposed for electronic control of ultra short pulse width. The width of formed pulses was in limits from 350 ps to 1400 ps. Wherein, the pulse-s amplitude was without changes. This approch allow to adapt the signal we use for miscellaneous communication tasks.
Pages: 24-28
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