Elements of the problem. Theory of propagation in a horizontally stratified atmosphere. Meteorology of the retraction problem. Experimental studies of refraction. Reflections from the earth's surface. Radar targets and echoes. Meteorological echoes. Atmosphere attenuation. Also Theory and Design of Microwave Filters - ISBN 9780852967775 Geometrical Theory of Diffraction for Electromagnetic Waves, 3rd Edition - ISBN 9780863410628 The Institution of Engineering and Technology is one of the world's leading professional societies for the engineering and technology community. The IET publishes more than 100 new titles every year; a rich mix of books, journals and magazines with a back catalogue of more than 350 books in 18 different subject areas -Power & Energy -Renewable Energy -Radar, Sonar & Navigation -Electromagnetics -Electrical Measurement -History of Technology -Technology Management