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.
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