脉冲压缩系统中气体开关对功率增益的影响
Effects of gas switch on power gain in pulse compressed system
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摘要: 对高功率微波脉冲压缩系统中气体开关对功率增益的一些重要影响进行了较详尽的理论分析，包括气体开关在导通过程中吸收微波能量，等离子体瞬间功率损耗使得谐振腔固有品质因数的下降，开关导通后等离子体并非理想良导体等，并将这些影响用修正系数来加以体现，对原有的用微波等效电路理论推导出的功率增益公式加以修正，使得理论公式的精确度由原来的60%提高至约85%。Abstract: Some important effects of gas switch on power gain in the pulse compressed system of high power microwave are analyzed, including the absorbed energy of gas switch in the progress of opening, the descending resonance inhere quality factor because of plasma instant power wastage, and the result because of plasma not being an ideal conductor. Modified coefficients are used to show these effects and the formula of power gain deduced by microwave equivalent circuit theory can be amended and the precision can be improved from 60% to about 85%.
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Key words:
- pulse compression /
- gas switch /
- microwave equivalent circuit /
- power gain /
- inhere quality factor
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