Abstract：Aiming at the problem of the lower discharge homogeneous and efficiency of conventional electrode structures,an approach is presented in terms of dielectric barrier discharge( DBD) of a new micro-plasma discharge structure which employs a grid shape as the electrode. Before and after discharge,an equivalent model is established and the calculation formula of discharge power is deduced. Though a series of analysis experiments on influencing factors of discharge power,the reactor characteristics and the problem about matching power supply have been studied. Experimental results and theoretical analysis are consistent. Discharge power increases nonlinearly while the supply voltage and frequency increase. Meanwhile,discharge efficiency has increased significantly than that of ever net-board and board-board electrode structure DBD,transferred charges were increased by about 11% and 20% compared with net-board,board-board.

Keyword：dielectric barrier discharge(DBD);microcavity;mesh electrode;discharge power;matching power;