The project deals with the problem of shielding and reducing the disruptive electric and magnetic field in a given area. For this purpose, we used a wire structure. At electric field, the part of electric flux of disruptive field ends on wires, and only the small part of it enters in the shielding area. Similar role is played by the structure at shielding disruptive magnetic field. In the structure of induced currents, the magnetic field weakens the disruptive field under the structure.
In the theoretical part, we have presented the physico-mathematical model of the response of wire structure. We have derived the necessary equations, which allow us to calculate the influx of charge on a structure, and define the new electrical field under the structure. In addition, we have derived necessary system of equations to calculate the induced currents in the structure and define the procedure for the calculation of new magnetic field under the structure. The effect of shielding two fields, was defined by the screening factor – with the ratio between disruptive and new field. According to that, the code in program Mathematica was written.
This is followed by the numerical examples. We analyzed the effect on the wire lattice based on geometry, frequency and material parameters. The results were presented in tables and diagrams. It has been shown that the lattice is much more effective for the electrical, than for magnetic field. The reason is in the Faraday induction, which becomes effective at the higher frequencies.