The Research of High Power Microwave Interaction in Lower Ionosphere

The propagation of High Power Microwave(HPM) can produce nonlinear effect in lower ionosphere. In this paper, the analytical interaction effect of HPM in lower ionosphere, and the relation of interaction factor with the initial electric field and microwave frequency is analyzed when HPM propagates in lower ionosphere and then simulate numerically the relation and show the figures. The conclusion shows that the value of E
₁
(0)/E
_p
should be controlled below the "ten" when HPM propagates in lower ionosphere, to reduce absorption attenuation.