EAST低杂波天线耦合特性研究

EAST低杂波天线耦合特性研究

内容简介：采用数值模拟方法研究了EAST低杂波天线的耦合特性.基于二维线性耦合理论,计算了天线功率反射系数和方向性系数与等离子体参数的关系,分析了无源波导对天线耦合性能的影响,并给出了不同参数下天线的功率谱.结果表明,无源波导使天线的方向性略有下降,但减小了天线的功率反射系数,这有利于天线与等离子体的耦合.

Abstract：The coupling properties of EAST LHW launcher are analyzed by numerical simulation. Based on the two-dimensional linear coupling theory, the relationships of power reflection coefficient and power directivity with plasma parameters are calculated. The effects of passive waveguides on the coupling properties are analyzed, and the power spectrums of launcher under different parameters are given. The results indicate that the passive waveguides give a slight reduction on power directivity, but to decrease the power reflection coefficient, which is good for the coupling between launcher and plasma.

作者：李军, 贾华, 刘甫坤,

关键词：低杂波天线, 耦合, EAST, 无源波导,