Output performance of the coaxial-type Marx generator consisting of BaTiO₃ series ceramic capacitors

We have theoretically analyzed the output performance of the coaxial-type Marx generator consisting of BaTiO₃ series ceramic capacitors. In this analysis, the capacitance of the BaTiO₃ series ceramic capacitor has been considered to be variable with applied voltage. The results were compared with experimental results, and fairly good agreement was obtained. As a result of this analysis, it was clarified that the BaTiO₃ series ceramic capacitor was not able to store efficiently the electrical energy when charged at high voltages. On the other hand, the SrTiO₃ series ceramic capacitor has an almost constant capacitance against applied voltages, so that stored energy may be extracted efficiently. We have quantitatively revealed the superiority of SrTiO₃ series ceramic capacitors over BaTiO₃ series capacitors.