采用一种通过测量脉冲源对天线的充电电流, 来间接测量天线放电激励电压的方法。首先建立了实际电路的理论仿真模型, 通过理论仿真证明了该方法的可行性。然后在双锥天线的不同绝缘工作气压下, 对其充电电流进行了测量。由天线的充电电流推导出了在不同工作气压下天线的电压波形和放电激励电压。该种方法无需对天线进行改造, 不会引进寄生参数, 不会影响被试对象的工作状态, 且在工程上易于实现。

Self-discharge biconical antenna is an important part of the compact electromagnetic pulse radiation system, which determines the gap discharge excitation voltage insulation design and far-field output voltage is of great significance for the research of the entire system. This paper presents an indirect method for measurement of antenna discharge excitation voltage by measuring the charging current of pulse source to the antenna. Static antenna is equivalent to a small capacitor. When starting to work, the source of the antenna is charged when the charging voltage reaches a certain level, the discharge gap breakdown, the antenna radiate electromagnetic energy by fast high voltage pulse excitation. The parasitic capacitance of the antenna is measured first, then the charging current of the antenna is measured by a broadband Rogowski coil, and voltage of the antenna can be obtained by integrating the charging current. Compared with a direct measurement, the method does not need to transform the antenna, has no introduction of parasitic parameters, does not affect the test subjects working conditions, and is easy to implement in engineering.