Research on electromagnetic coupling characteristics of UAV circuits in the Complex electromagnetic environment

Abstract The overall circuit model and Complex electromagnetic environment of a typical UAV are built to explore the survivability multirotor in complex environment. composite theoretical calculation metal cavity aperture coupling internal is constructed using established model, which based on equivalent magnetic dipole algorithm FDTD algorithm. terminal voltage field distribution inside estimated. CST software used simulate response circuits same condition, correctness confirmed. Then, PCB create an efficiency model. findings reveal that can accurately characterize characteristics environment, with error range 1%~8%. When comparing various complicated environments, High-power microwave (HPM) has maximum efficiency. HPM initially causes attain damage threshold under identical event conditions target specifications. could be as guide for board protection well development high-power pulse weaponry.