论文部分内容阅读
本文描述一种高收敛皮尔斯枪,其电子注层流性能基本上与无栅枪相似,而工作比超过三极管型有截获的栅控电子枪。因为四极管型电子枪是在栅丝之间100%的发射表面上较为均匀地支取电流,所以单位面积上的阴极负载远小于一般的阴影栅电子枪或栅极贴近阴极的阴影栅电子枪。理论研究和电子注分析器研究以及 IJ 波段大功率螺旋线行波管的热测都已证实,若微调四极管型电子枪的两个控制栅电压,将使性能有大幅度地改进。可调的栅丝透镜可使电子注直径和层流最佳,并反映了公差的变化。在管子包装组件内还包括一个简单的自偏压网络,以便用普通的栅极脉冲调制器工作。
This article describes a highly convergent Pierce gun whose electron flow is essentially similar to that of a gridless gun, with a working ratio of more than that of a triode with intercepted electron guns. Because the quadrupole gun draws current more evenly on 100% of the emissive surface between the grids, the cathodic load per unit area is much smaller than a typical shadow grid electron gun or a shadow grid electron gun with its gate close to the cathode. Theoretical studies and investigations of the electron beam analyzer and the thermal measurements of the IJ band high power helical traveling wave tube have confirmed that the fine tuning of the two control gate voltages of the quadrupole type electron gun will result in a significant improvement in performance. Adjustable grid-wire lenses maximize electron beam diameter and laminar flow and reflect tolerance changes. A simple self-biasing network is also included in the tube package to work with a common gate pulse modulator.