RF Sensor Performance in Electrically Large, Complex Environments

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$79,878.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
N68335-07-C-0211
Award Id:
82528
Agency Tracking Number:
N071-023-0776
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
315 S. Allen St., Suite 222, State College, PA, 16801
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
945483733
Principal Investigator:
Joseph Schuster
Technical Supervisor
(814) 861-1299
jws@remcom.com
Business Contact:
Raymond Luebbers
President
(814) 861-1299
rjl@remcom.com
Research Institute:
n/a
Abstract
The radiation from antennas mounted on a geometrically complex platform, such as an aircraft, remains a challenging electromagnetics problem. Since military applications often require multiple antennas on the same platform, the analysis of interference is also important. It is difficult to use full wave electromagnetic solutions for such problems at high frequencies due to computer memory and computation time required. The best alternative is to use full wave methods only to analyze the antenna radiation characteristics, and to use the Geometrical Theory of Diffraction (GTD) to predict how energy propagates over the electrically large platform. A key advantage of GTD over other high frequency asymptotic methods is the accuracy with which it can model propagation along curved surfaces by means of surface diffracted rays, or creeping waves. The GTD also has the ability to combine creeping waves with diffractions and reflections from other features, such as the wings and stabilizers on aircraft. Another important is the memory and computation time does not increase with frequency, since the time to find the ray paths depends only on the complexity of the geometry not on the electrical size.

* information listed above is at the time of submission.

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