Feasibility study of a synthesis procedure for array feeds to improve radiation performance of large distorted reflector antennas [electronic resource] : semiannual status report / by W.L. Stutzman and W.T. Smith.
Blacksburg, Va. : Virginia Polytechnic Institute and State University, Harry Lynde Bradley Dept. of Electrical Engineering ; [Washington, D.C. National Aeronautics and Space Administration, 1990]