The authors build a two-dimensional finite-element model of electromagnetic transmission through the magnetized plasma sheath surrounding a reentry vehicle. Plasma flow fields at several altitudes are generated with USIM and transferred to COMSOL, where spatially varying plasma properties and an imposed magnet field determine full-wave propagation. Field maps and dispersion behavior verify the implementation. The simulations quantify the magnetic-window mechanism: transmission depends jointly on magnetic-field strength, the background-field excitation position, and wave frequency, with lower-frequency whistler waves improving penetration under realistic field limits. For a maximum field of
- Coupled reentry plasma-flow data to a two-dimensional full-wave finite-element model.
- Verified magnetized-sheath propagation through dispersion trends and field-distribution diagnostics.
- Quantified how magnetic strength and signal frequency control whistler-wave transmission loss.
- Identified an effective magnetic-window position under a realistic
$1\ \mathrm{T}$ field constraint. - Demonstrated a faster multiphysics workflow for evaluating plasma-blackout mitigation strategies.