Brief review of electromagnetic theory.  Antenna parameters. Radar equation. Friis transmission formula. Receiving antennas; effective area, polarization mismatch factor.Radiation; retarded potentials. Hertzian dipole. Near and far fields. Linear antennas.  Uniform and nonuniform arrays. Pattern multiplication. Dipoles above ground. Aperture antenna theory. Horn and reflector antennas. Propagation. Basic modes of propagation. Ground and surface waves. lonospheric wave propagation. (Prerequisite: EENG 331)