Retrofit Antijam Applique for Handheld GPS Receivers

Award Information
Agency: Department of Defense
Branch: Army
Contract: DAAB07-02-C-L401
Agency Tracking Number: A002-1096
Amount: $729,128.00
Phase: Phase II
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
2140 Newmarket Parkway, Suite 110, Marietta, GA, 30067
DUNS: 796267656
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Johnson Wang
 Chief Scientist
 (770) 955-9311
Business Contact
 William Alverson
Title: Senior Vice President
Phone: (770) 955-9321
Research Institution
The land warrior has become increasingly dependent on handheld GPS (Global Positioning System) receivers for providing location information in high interference environments for Situation Awareness, etc. on modern battlefield. A solution is to replace thelegacy antenna with a relatively inexpensive smart antenna appliqu¿ to null out the jam. This smart antenna should be a direct replacement for the current antenna, without any change to the receiver, and with minimal consumption of battery power. A jamindicator and interference signal level measurement can be provided with manual activation of antijam operation only when jam is detected. In Phase-I, Wang Electro-Opto Corporation (WEO) successfully demonstrated the feasibility of such an antennaappliqu¿ for GPS L1 band. We propose a Phase-II program to expand the design to cover both L1 and L2 bands. Two approaches will be taken, one using conventional antennas, and the other using WEO's patented miniaturized slow-wave antenna. Brassboardantenna appliqu¿ with jam sensor and indicator with low power-consumption will be developed.

* Information listed above is at the time of submission. *

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