LINE SOURCE ANTENNA ARRAYS FOR CONTROL OF PATTERN, DISPERSION, AND PHASE.
Abstract
A method of beam synthesis using a superposi tion of elemental plane waves is applied to problems of microwave antenna patterns of gen eral shape. The method is extended to the limit of an infinite number of plane waves and related to usual Fourier transform methods. A linear array and a lens horn for generating a rectangu lar shaped beam is designed and experimental results are given. Several new types of micro wave prisms are designed for practical waveguide feeding and their performance analyzed. These prismatic antennas allow control of array dis persion, that is, beam swing with frequency change. Techniques for both maximizing and mini mizing dispersions are presented. An analytic procedure for describing a curved reflecting sur face to produce an arbitrary phase distribution along a line aperture is presented. Application of this technique to line source and subreflec tor correction of spherical aberrations is pre sented as a practical example. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1963
- Accession Number
- AD0413410
Entities
People
- C. J. Sletten
- F. S. Holt
- J. F. Holland
- P. Blacksmith Jr.
Organizations
- Air Force Cambridge Research Laboratories