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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

950强激光与粒子束第17卷

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Effectsofgasswitchonpowergaininpulsecompressedsystem

XIESu2long,　MENGFan2bao,　MAHong2ge

(InstituteofAppliedElectronics,CEPA,P.O.Box91921017,Mianyang621900,China)

　　Abstract:　Someimportanteffectsofgasswitchonpowergaininthepulsecompressedsystemofhighpowermicrowaveareanalyzed,includingtheabsorbedenergyofgasswitchintheprogressofopening,thedescendingresonanceinherequalityfactorbecauseofplasmainstantpowerwastage,andtheresultbecauseofplasmanotbeinganidealconductor.Modifiedcoefficientsareusedtoshowtheseeffectsandtheformulaofpowergaindeducedbymicrowaveequivalentcircuittheorycanbeamendedandtheprecisioncanbeimprovedfrom60%toabout85%.

　　Keywords:　Pulsecompression;　Gasswitch;　Microwaveequivalentcircuit;　Powergain;　Inherequalityfactor