Development of the Millimeter Wave Diagnostics on HL-2A

Millimeter-wave technology is widely used in the controlled fusion experiments. In this paper the new diagnostic systems on the HL-2A tokamak, including microwave reflectometry, electron cyclotron emission, was presented. The new methods for plasma particle transport and the experiments on HL-2 A tokamak was shown. The plans of the diagnostic development in next step are also presented.