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The air breakdown driven by the high-power microwave radiated from the circular waveguide is investigated using the 2-D fluid model. We focus on the case of the air pressure higher than 100 torr, and therefore neglect the electron diffusion loss to the wall in the fluid model. A proper numerical scheme for the finite-difference time-domain method is developed to solve the fluid model. The results...
In this paper, the stability of the one dimensional (1D) finite-difference time-domain (FDTD) difference scheme for the high power microwave (HPM) atmosphere propagation model is analyzed. The derivation shows that the conventional Courant condition is still valid when the time step meets the constraint imposed by the collision frequency. Our conclusion confirms that the FDTD method is available in...
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