Miniature GPS Antenna System

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N68335-06-C-0019
Agency Tracking Number: N043-265-0093
Amount: $747,062.00
Phase: Phase II
Program: SBIR
Awards Year: 2005
Solicitation Year: 2004
Solicitation Topic Code: N04-265
Solicitation Number: 2004.3
Small Business Information
APPLIED EM INC.
144 Research Drive, Hampton, VA, 23666
DUNS: 782587406
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 C. Reddy
 President & Chief Technic
 (757) 224-2035
 cjreddy@appliedem.com
Business Contact
 C. Reddy
Title: President & Chief Technic
Phone: (757) 224-2035
Email: cjreddy@appliedem.com
Research Institution
N/A
Abstract
The proposed research effort addresses two main shortcomings in the state-of-art GPS anti-jam systems. One of them relates to antenna size and the other pertains to performance limitation imposed by antenna electronics implementations. The current antenna array GAS-1 CRPA has seven antenna elements and extends 14in diameter, making it too large for airborne platforms of interest. A modified version of this antenna array GAS-1 CRPA is significantly smaller in size (seven inches in diameter) but incorporates only four antenna elements, thus limiting its nulling capabilities under severe jamming conditions. Ubiquitous use of GPS systems on missiles and airborne platforms does, of course, imply a need for smaller real estate without compromise in anti-jamming capability. Our Phase I work resulted in a novel miniature GPS antenna that can allow for a 4.25" GPS array, and during Phase II we propose to develop and test such an array for GPS applications. We will still maintain 8 ports for agility in nulling and beamforming , and we will also consider platform effects in evaluating the performance of the new GPS array.

* information listed above is at the time of submission.

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