CAJ | 학술논문

HT-7上用于低杂波电流驱动的相控波导阵天线采用的是标准波导,长和宽都是有限值.在考虑了天线上下排波导之间可能存在的极向相位差以及电磁干扰时,通过数值模拟的方法,分别得到了低杂波在环向方向的平行功率谱和在极向方向的极向功率谱.由于极向波矢的存在,低杂波进入等离子体的入射方向会发生改变.最后在不同极向相位差下对低杂波进入等离子体的入射方向进行了简要的计算和讨论.
HT-7상용우저잡파전류구동적상공파도진천선채용적시표준파도,장화관도시유한치.재고필료천선상하배파도지간가능존재적겁향상위차이급전자간우시,통과수치모의적방법,분별득도료저잡파재배향방향적평행공솔보화재겁향방향적겁향공솔보.유우겁향파시적존재,저잡파진입등리자체적입사방향회발생개변.최후재불동겁향상위차하대저잡파진입등리자체적입사방향진행료간요적계산화토론.
The coupler of LHCD on HT-7 tokamak is constituted with standard wavegudes, whose length and width are constant. Considering of the possible poloidal phase difference between the up and down guides and electromagnetic interference, we get the power spectrum lower hybrid wave in both poloidal and toroidal direction by the way of simulation. Due to the poloidal wave vector, the incident direction of lower hybrid wave launching into plasma will be changed. In the last, the incident angle of lower hybrid wave launching into plasma is simply estimated and discussed under the different poloidal phases.