Abstract
The use of ray-optical techniques in the study of microwave radiation, propagation, diffraction, and ducting is reviewed, and relevant concepts are illustrated by simple examples. Emphasis is placed on the relation between ray-optical and wave-optical procedures, and on the role of modal methods in the study of quasi-optical phenomena. A number of microwave devices and components, designed on the basis of ray optics, is included in the discussion.
© 1965 Optical Society of America
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