Electromagnetic simulation analysis of antenna radiation interference for unmanned surface vessels

In response to the issue of electrical interference in unmanned surface vessel compartments caused by poor electromagnetic compatibility of the antennas, a method of filling the compartment orifice with conductive material is proposed in combination with the structure of the unmanned surface vessel, to achieve the effect of shielding antenna electromagnetic interference. Firstly, by controlling the interfering variables, the interference source is located; then, based on the identification of the antenna as the interference source, the electric field strength of the antenna radiation at the equipment location is simulated and calculated. When rubber is used to fill the compartment orifice, the highest field strength inside the compartment reaches 50V/m. However, with the use of conductive materials for filling, the field strength at the equipment location is close to 0, achieving the effect of shielding antenna radiation interference and restoring normal operation of the compartment's electrical equipment. Finally, the effectiveness of this method is verified through experiments, and it is recommended to plan the distance between the unmanned surface vessel's antennas and equipment reasonably during the early stages of design.