FEM Study on Electromagnetic Pulse Propagation in Ionosphere

FEM Study on Electromagnetic Pulse Propagation in Ionosphere

연구 분야: Infrastructure

학회: 2024 14th International Symposium on Antennas, Propagation and EM Theory (ISAPE)

The propagation characteristics of nuclear electromagnetic pulse (NEMP) in ionosphere is studied by using the Finite Element Method (FEM). The location-varying electron density, collision frequency, and dispersive permittivity of the ionosphere are introduced into the time-domain and frequency-domain FEM. The transmission coefficient, waveform, and time delay of the electromagnetic pulse (EMP) is analyzed. This work may provide theoretical foundation for the space-based nuclear explosion detection.