Retrofit Antijam Applique for Handheld GPS Receivers

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$729,128.00
Award Year:
2002
Program:
SBIR
Phase:
Phase II
Contract:
DAAB07-02-C-L401
Award Id:
52748
Agency Tracking Number:
A002-1096
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
2140 Newmarket Parkway, Suite 110, Marietta, GA, 30067
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
796267656
Principal Investigator:
Johnson Wang
Chief Scientist
(770) 955-9311
jjhwang@weo.com
Business Contact:
William Alverson
Senior Vice President
(770) 955-9321
wkalverson@weo.com
Research Institute:
n/a
Abstract
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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