WIDE-ANGLE MICROWAVE LENS FOR LINE SOURCE APPLICATIONS
Abstract
Design equations for a constrained wide-angle, two-dimensional microwave lens were derived for the special case in which the front lens face is straight and in which lens elements can connect arbitrary points on the 2 lens contours. A phase analysis indicates that this lens design has very small coma aberrations and is capable of generating beams a fraction of a degree in width. Criteria are developed for selection of optimum lens parameters for specific applications. An experimental model in which the lens elements consist of coaxial cables was constructed to demonstrate techniques of fabrication. Radiation patterns indicated the expected characteristics. The application of these principles to design of symmetrical three-dimensional lenses is briefly indicated. Tables of lens contour parameters and path length aberrations are presented for the specific case of a scan angle alpha of 30 degrees.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1962
- Accession Number
- AD0273611
Entities
People
- R.f. Turner
- W. Rotman
Organizations
- Air Force Cambridge Research Laboratories