The current and field distribution of a high power satellite antenna affected by nonlinear plasma sheath phenomena
Abstract
For electromagnetic and acoustic radiation from antennas in a plasma environment, the fundamental electro and hydrodynamic equations are presented involving nonlinear source terms up to the third order. A perturbation procedure is applied to derive a numerical solution from a set of coupled integral equations for the linearized (first order) magnetic field and electron density describing the dipole radiation into a homogeneous compressible plasma. The solution is given in terms of an equivalent surface current density based on a Green's function representation. An inhomogeneous plasma sheath is shown to build up around the dipole, where the antennatoplasma coupling turns out to be strongest in the near field of a high power transmitting antenna.
 Publication:

In AGARD
 Pub Date:
 May 1987
 Bibcode:
 1987aeha.agarR....B
 Keywords:

 Current Distribution;
 Dipoles;
 Earth Ionosphere;
 Electric Fields;
 Magnetic Fields;
 Plasma Density;
 Plasma Sheaths;
 Satellite Antennas;
 Electrodynamics;
 Green'S Functions;
 Hydrodynamic Equations;
 Integral Equations;
 Perturbation;
 Sound Waves;
 Communications and Radar