About the author Robert E. Collin received the B.Sc. degree in engineering physics from the University of Saskatchewan in 1951. He attended Imperial College in England for graduate work and obtained the Ph.D. degree in electrical engineering from the University of London in 1954. From 1954 to 1958 he was a Scientific Officer at the Canadian Armament Research and Development Establishment, where he worked on missile guidance antennas, radomes, and radar systems evaluation. He joined the Electrical Engineering Department at Case Institute of Technology (now Case Western Reserve University), Clev...