Analysis of Attenuation Characteristics of Electromagnetic Wave in Weakly Ionized Dusty Plasma at Multiple Angles

In the case of external magnetic field, the complex dielectric constant of electromagnetic (EM) wave in weakly ionized dusty plasma is derived. The attenuation coefficient (Att) of the EM wave in dusty plasma at multiple angles is calculated by the Wentzel–Kramer–Brillouin (WKB) method. The results show that the Att of left-circularly polarized wave increases monotonically when the incidence angle increases gradually, and the increasing change is obvious in the low frequency range.