Simulación de circuito generador de nanopulsos con herramienta CAD de alto desempeño

The effect of short duration pulses is still of interest to researchers as one of the least invasive techniques in different medical treatments, for example: cancer. Marx pulse generators are the most widely used because they are very compact circuits and modular scalability. There are still many problems regarding coupling and parasitic elements that have not been solved since there are no analytical expressions that allow determining the duration and amplitude of the pulse with high precision, in addition to reducing the duration of the pulse and increasing the pulse rate pulse peak value. All of the above allowed a preliminary study of a 5-stage Marx circuit module with avalanche transistors (FMMT417) with a high-performance CAD tool (ADS) which has several circuit optimization tools, which will allow to improve said Marx module. As a result of the first simulation, it was possible to successfully simulate the 5-stage Marx generator with an estimated pulse duration of 1100 V and estimated pulse duration of 7 ns.