This article presents a high-voltage switched oscillator (SO) with a quarter-wave open-circuited stub (OCS) for generating mesoband high-power microwave (HPM) pulses. Unlike the conventional SO, the proposed SO generates mesoband HPM pulses whose dc offset is greatly reduced because the OCS inserted between a charged transmission line and an antenna blocks the flow of the electric energy from a high-voltage power supply to the antenna. Thus, the proposed SO allows the insulation capability of the antenna to be increased and ground-loop-integrated-wideband antennas to be employed. The transient response of the proposed SO is theoretically analyzed to understand its operation mechanism. The results prove that the proposed SO is capable of producing mesoband HPM pulses with a damped rectangular pulse waveform without a high-voltage dc offset. Also, the amplitude and quality factor are discussed. Compared with the conventional SO, the proposed SO has a larger output amplitude and smaller quality factor. Here, the difference between the quality factors is negligible. In addition to the theoretical analysis, we simulated and fabricated the proposed SO. Consequently, the results of the circuit simulation and experiment demonstrated the validity of the proposed design concept.

中文翻译：

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具有四分之一波、开路短截线的开关振荡器，用于生成中频带高功率微波脉冲

本文介绍了一种带有四分之一波开路短截线 (OCS) 的高压开关振荡器 (SO)，用于生成中带高功率微波 (HPM) 脉冲。与传统的 SO 不同，所提出的 SO 产生的中带 HPM 脉冲的直流偏移大大降低，因为插入在带电传输线和天线之间的 OCS 阻止了电能从高压电源流向天线。因此，所提出的 SO 允许增加天线的绝缘能力并采用接地环路集成宽带天线。对所提出的 SO 的瞬态响应进行了理论上的分析，以了解其运行机制。结果证明，所提出的 SO 能够产生具有阻尼矩形脉冲波形的中带 HPM 脉冲，而没有高压直流偏移。还，讨论了幅度和品质因数。与传统 SO 相比，所提出的 SO 具有更大的输出幅度和更小的品质因数。在这里，质量因素之间的差异可以忽略不计。除了理论分析之外，我们还模拟和制造了所提出的 SO。因此，电路仿真和实验的结果证明了所提出的设计概念的有效性。