The Physics Society of Iran Iranian Journal of Physics Research 1682-6957 24 1 2024 05 21 Investigating the dynamics of radio wave propagation in the plasma sheath around the hypersonic space vehicle Investigating the dynamics of radio wave propagation in the plasma sheath around the hypersonic space vehicle 89 97 3489 10.47176/ijpr.24.1.21796 FA Sima Alilou Physics Department, University of Tabriz, Tabriz, Iran 0000-0001-5236-0153 Laya Shahrassai Physics Department, University of Tabriz, Tabriz, Iran 0000-0001-6395-6200 Samad Sobhanian Physics Department, University of Tabriz, Tabriz, Iran Journal Article 2023 12 07 The radio blackout occurring in hypersonic spacecraft re-entry is a very fundamental problem, primarily because of the relatively long (several minutes) blackout period. In this research, the role of injected solid dielectric particulate into the plasma sheath formed around the spacecraft in mitigating the radio communication cut-off between the ground-based station and the space vehicle is studied analytically. Considering the propagation dynamics of radio waves in the dusty plasma formed by solid particle injection and using Fresnel’s formulae, the effect of dust particle number density and its dimension is investigated in the frequency range of 1-20GHz. In addition, the effect of the incident angle of the wave with the hypersonic shuttle nose surface has also been studied. The radio blackout occurring in hypersonic spacecraft re-entry is a very fundamental problem, primarily because of the relatively long (several minutes) blackout period. In this research, the role of injected solid dielectric particulate into the plasma sheath formed around the spacecraft in mitigating the radio communication cut-off between the ground-based station and the space vehicle is studied analytically. Considering the propagation dynamics of radio waves in the dusty plasma formed by solid particle injection and using Fresnel’s formulae, the effect of dust particle number density and its dimension is investigated in the frequency range of 1-20GHz. In addition, the effect of the incident angle of the wave with the hypersonic shuttle nose surface has also been studied. https://ijpr.iut.ac.ir/article_3489_1b318124e37af6d74a03501474f44ea1.pdf