影响相对论磁控管效率的因素分析  

Analysis of Factors Affecting Relativistic Magnetron's Efficiency

作　　者：李天明[1] 李家胤[1] 于秀云[1] 张廷伟[1] 汪海洋[1] 李浩[1] 周翼鸿[1] 邹焕[1] 

机构地区：[1]电子科技大学物理电子学院国家863计划强辐射研究室,四川成都610054

出　　处：《电子学报》2006年第9期1721-1725,共5页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60501013);国家高技术研究发展计划(863计划)基金(No.2005AA832050)

摘　　要：相对论磁控管与普通磁控管效率形成了极大的反差.本文依据打上阳极表面的电子流剩余能量,分析了同步速度、电子小回旋运动、层流厚度、回旋半径、空间直流电荷场与强高频场对效率的影响,并以经典的S波段A6相对论磁控管为例,数值比较了效率随以上各因素的变化,结果表明:强高频场影响是造成相对论磁控管效率低下的主要原因,此结论通过粒子模拟也得到了证实.What causes relativistic magnetron to have much lower efficiency than common magnetron？ Based on the residual energy of electron stream at the anode, different factors affecting the relativistic magnetron＇ s efficiency,including synchronous velocity, gyral movement, depth of Brillouin flow, Lamour radius, DC space charge field and RF field, were analyzed. Comparing those factors in the typical A6 magnetron＇ s parameter, result shows that the intense RF field is the primary reason to lower relativistic magnetron＇ s efficiency. This conclusion was proved by the PIC simulation, too.

关 键 词：高功率微波 相对论磁控管 电子效率 剩余能量 

分 类 号：TN128[电子电信—物理电子学]