INVESTIGATION OF USE OF SUPERIMPOSED SURFACE WAVE MODES.
Abstract
A method of achieving a matched aperture in phased arrays over a wide range of scan angle has been investigated. This method uses two or more propagating modes in each array element such that the reflections of these modes from the array aperture produce a cancellation effect at the element driving terminal. An experimental 256 element planar array was constructed to demonstrate this technique. Each radiating element consists of an open-ended waveguide driven by an end-on coaxial transition. Modal amplitude control of higher order modes is accomplished by means of either a perforated dielectric slab or an inductive iris at the aperture. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1970
- Accession Number
- AD0704563
Entities
People
- George H. Okubo
- Nam S. Wong
- Raymond Tang
- Shung-wu Lee
Organizations
- Hughes Aircraft Company