Fast Evaluation Method for Electromagnetic Occlusion of Antenna Array for Integrated Joined-Wing Platform

Abstract

The present invention proposes a method for quickly evaluating the electromagnetic shielding of an antenna array for an integrated joined-wing platform. First, for the integrated joined-wing aircraft model with the antenna layout scheme to be evaluated, ignoring the thickness of the patch antenna, the aircraft surface is divided into triangular grid cells. Secondly, the field source is set on the ground and the receiving end is set on the joined-wing aircraft. Rays carrying the set electric field are generated in the direction from the field source to the receiving end. It is judged whether the rays intersect with the triangular grid cells. If they intersect, the rays are directed to the bright area. Then, the electric field intensity of the rays directed to the bright area is traced, and the improved bounce ray method is used to calculate the field intensity distribution of each patch antenna. Finally, based on the field intensity distribution of each patch antenna and the electric field intensity of the field source, the electromagnetic shielding rate of each patch antenna and the total electromagnetic shielding rate of the integrated joined-wing aircraft are calculated. The present invention can quickly solve the electromagnetic shielding rate of the integrated joined-wing aircraft.

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