为了在HT—6M托卡马克装置上开展低杂波驱动等离子体电流的实验研究,我们建立了一套颇有特色的低杂波射系统。该系统主要由微波源、传输系统和天线三部分组成。我们采用独特的磁场调制方法实现了连续波磁控管的脉冲运行,峰值输出功率为P=30kW,脉冲宽度τ<30mS。研制了一种新型的Grill——多结波导阵天线,使传输系统大为简化。该系统已成功地应用于低杂电流驱动实验,取得了予期的实验结果。 In order to carry out experimental research on low clutter-driven plasma current in the HT-6M tokamak device, we have established a rather unique low-clutter system. The system is mainly composed of microwave source, transmission system and antenna. We use a unique magnetic field modulation method to achieve a continuous magnetron pulse operation, the peak output power of P = 30kW, pulse width τ <30mS. Developed a new type of Grill - multi-junction waveguide array antenna, the transmission system is greatly simplified. The system has been successfully applied to low miscellaneous current drive experiments, and achieved the expected experimental results.