Theoretical Analysis of the Resonance Cone in an Inhomogeneous Magnetoplasma Column

The three-dimensional behavior of the high-frequency resonance cone is investigated using an inhomogeneous slab magnetoplasma model under the quasi-static approximation and neglecting ion motion. The effects of finite ky and electron thermal motion are considered numerically, revealing that the cone angle is shifted to a slightly smaller angle and the reflection point is also shifted toward the high density region compared with results under the cold plasma approximation.