High-speed pulse circuits obtained by computer-aided nonlinear analysis of step-recovery diodes

Abstract
A very accurate mathematical model of step-recovery diodes can be realized with exponential functions for the voltage-variable capacitance and for the static resistance. This model has also proved suitable for the quantitative analysis of more complicated networks. First the application of this model to well-known circuits with step-recovery diodes is explained. Then new circuits are discussed that lend themselves to generate clean-cut pulses at gigahertz frequencies. The capability of the mathematical method is demonstrated by the good agreement with experimental results.