Radiation from an axial slot on a conducting circular cylinder clad with magnetoplasma

There has been a considerable interest in the recent years in the problem of radiation from apertures covered with a plasma sheath. Such a sheath is formed around the body of a hypersonic vehicle during its re-entry into the earth´s atmosphere. It is well-known that a plasma sheath is highly inhomogeneous and nonuniformly distributed about the vehicle´s body. The electromagnetic effect of a plasma sheath may be one of a complete blackout or only impairment of radio communication and a sufficient distortion of the radar signals and the antenna pattern to make communication with the ground station unreliable.