Low Rcs Antenna Development

Period of Performance: 03/01/1991 - 11/01/1992


Phase 2 SBIR

Recipient Firm

Spectra Research, Inc.
2790 Indian Ripple Road
Dayton, OH 45440
Principal Investigator


LRCS) antenna research synthesized and evaluated several antenna configurations offering a low RCS capability or retrofit to existing parabolic dishes with minimal impact upon antenna RF performance. This SBIR Phase II proposal outlines a plan to develop and test three unique low radar cross-section antenna desings evaluated in Phase I. These prototypes will be designed, fabricated and tested to determine both radar performance and RCS redution. The Phase I antenna computer models will be augmented with a three-dimensional Geometric Theory of Diffraction (GTD) Model to accurately quantify LRCS performance amd design trade-offs. Three options are offered, two to test additional LRCS concepts and the third to apply and test this technology to the low RCS dipole requirement. Anticipated Benefits/Potential Commercial Applications - The prototype designs offer unique solutions to virtually all requirements of DoD requiring signature management. Mitigation, or minimizing RCS reduces the detectability and vulnerability of the radar, C3I, and other electromagnetic based sensor system resources. The designs offer application to spaceborne requirements as well. The commercial market is low cost antennas for direct satellite broadcast reception.