ELEMENTARY RESULTS FOR HIGH FREQUENCY SCATTERING BY CONES
Abstract
Elementary high frequency results for scattering by finite cones are obtained by approximating the surface fields in the integral representation by their geometrical optics values. Both singly and doubly truncated cones are considered. A general expression is obtained for the location of the specular beam (i.e., the surface generated by the geometrically reflected rays), and simple results for the field on and off the beam are developed. In particular, it is shown that for many practical purposes a universal curve exists for the scattering pattern. This curve, which depends on a parameter involving the cone's length and half angle, falls more or less between the Fraunhofer aperture patterns for the strip and disk, and differs essentially in that the minima are not zero. Numerical illustrations are given.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 24, 1961
- Accession Number
- AD0268393
Entities
People
- J. E. Burke
- L. Mower
- V. Twersky
Organizations
- Sylvania Electric Products