A Broad-Band Array of Aperture-Coupled Cavity-Backed Slot Elements
Abstract
A broad-band array of aperture-coupled cavity-backed slot (CBS) elements was designed, constructed and tested. The antenna array design incorporated two major departures from previous CBS arrays; aperture coupling, and 'half-width' cavities. Experimental results demonstrated these departures enhance the potential for larger operating bandwidths using less physical space than previous arrays of CBS elements. Computer simulation and test results also indicated that the antenna array was not hindered by the presence of a large structural stopband such as was observed in all previous CBS arrays. Consequently, modulation of the antenna feedline impedance was not required for satisfactory performance. Antenna patterns for the array were similar over the frequency range 1.75 - 3.5 GHz.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1988
- Accession Number
- ADA196400
Entities
People
- Joseph M. Burns
Organizations
- Air Force Institute of Technology