Effect of Ion Engine Exhaust on the Radiation Field of a Dipole Antenna Part II: Cylindrical Configuration for the Engine Exhaust Beam

In part II, a cylindrical configuration is used to represent the engine exhaust beam. The dipole, considered as a linear current source, is transformed by means of a Fourier series to an equivalent cosinusoidally distributed current sheet surrounding the beam. A radiation pattern function is presented to give the azimuthal beam synthesis of the dipole. It is found that the antenna radiation pattern is affected seriously by the presence of the exhaust beam. Plasma waves in the exhaust beam are found to be excited by the dipole field. The Boltzman and Poisson equations are used to investigate the existence and nature of these waves.