A Structure Design Research Of Electromagnetic Stealth Based On The Form Invariance Principle Of Maxwell’s Equation

At present, the requirements of high precision electronic equipment for electromagnetic shielding was becoming higher and higher. Using the absorption of electromagnetic wave shielding can cause electronic equipment heat, and adopting the reflection method will produce secondary electromagnetic interference.This article was based on the basic idea of guiding the electromagnetic wave, and launched research to the theory of electromagnetic shielding structure. In the second chapter, material constitutive parameters was calculated under different space and different coordinate system. In the third chapter, a stealth shielding design method of arbitrary polygon based on the control method of vertex was put out, using triangular segmentation primitives, throughing coordinate transformation in the segmentation polygon vertex one by one and gainning material constitutive parameters which was needed for transferring electromagnetic field from the shielding area perfectly out, this method can also be extended to any graphics. In the fourth chapter, simulation analysis was made on the thickness of the "shield" and the typical graphics, and the magnetic properties and the distribution of constitutive parameters and electric field were obtained. And the system of the singular parameter of the graphic, grid quality, dielectric loss, the ratio of the graphics and wavelength, the shielding’s thickness was put forward to evaluate the simulation result. This paper provides new ideas for electromagnetic shielding, and provides some guidance for optimizing the structure of electronic equipment and shape.