Low Cost Conformal Electronically Scanned Antenna

Period of Performance: 07/22/1993 - 07/22/1995

$447K

Phase 2 SBIR

Recipient Firm

Atlantic Aerospace Electronics Corp.
6404 Ivy Lane, Suite 300
Greenbelt, MD 20770
Principal Investigator

Research Topics

Abstract

An innovatiove approach to providing electronic azimuth scan of a radar beam by a combined switching network and active Rotman lens has been parametrically investigated in Phase I. Since the Rotman lens provides true time delay azimuth scan, the radar function can be shared with an ESM function and the potential for multiple simultaneous beams exists. The proposed Phase II effort will concentrate on the issues of achieving broadband polsrization diversity and elevation beam control. A two-dimential dual-polarized array will be fabricated and tested. An elevation beamformer network which provides a csc-squared beam in elevation will be integral with the array hardware. A "beam steering network" will be fabriacted and tested to demonstrate our unique Rotman lens input port combining scheme. A "polarization selection network" will also be fabricated and tested to quantify the polarization diversity of the array.