Abstract
PSJA(Plasma Synthetic Jet Actuator) is an electric device for flow control utilizing barrier discharge phenomenon. To avoid electromagnetic interference with other devices, it is important to analyze electromagnetic waves emitted by PSJA. This paper carries out a simulation of electromagnetic field distribution by FDTD method using barrier discharge model, where the electromagnetic field is assumed to be generated by discharge current between the electrodes. The result shows that the electric field is directed from exposed electrode toward insulated electrode, and the magnetic field component parallel to discharge current is very small relative to the other components.