Coupling Model for Circuit Systems in HP-EM Interference

Transmission lines on PCB can be treated as microstrip antennas when the frequency is high enough. Because of the incident HP-EM (high power electromagnetic) wave, electric systems may be disturbed by the coupling between spatial waves and transmission lines. To solve the interference of complex systems, an efficient model is proposed in this paper. It combines the transmission theory and network theory and gives an easier solution of the system coupling