Abstract:
Magnetic compression lines are novel picosecond pulsed power devices, which open the possibility of generating picosecond electrical pulses with peak power of over 100 GW. Recently, it has been found that pulse duration in magnetic compression lines is greatly influenced by the dispersion of dominant quasi-TEM propagation mode of dual-dielectric coaxial structure. This work numerically investigates the operation of a magnetic compression line based on dual-dielectric parallel-plate transmission line, which also exhibits quasi-TEM-type dispersion. Based on full-wave simulation, typical modes of pulse compression are determined, and the influence of input pulse parameters and line geometry on pulse compression is evaluated. The analysis shows that the presence of quasi-TEM-type dispersion affects the process of pulse compression in the same way regardless of the type of transmission line used.
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