DEVELOPMENT OF APPROXIMATIONS FOR A FAST-METHOD OF MOMENTS TECHNIQUE BASED ON NORMAL MODES

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$500,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Agency Tracking Number:
5780
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Electro Magnetic Applications
Po Box 8482, Albuquerque, NM, 87198
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
T H Lehman
(505) 265-3538
Business Contact:
() -
Research Institution:
n/a
Abstract
A FAST NEW APPROXIMATION FOR THE METHOD OF MOMENTS SOLUTION OF ELECTROMAGNETIC RESPONSE PROBLEMS IS PROPOSED. THE NEW APPROACH IS BASED ON SEPARATION OF THE PROBLEM INTO A GLOBAL RESPONSE SET DEPENDENT ON NORMAL MODES, AND A LOCAL RESPONSE DEPENDENT ON GEOMETRICAL OPTICS. THE EFFORTS OF NEGLECTING THE LOCAL RESPONSE TERM ALONG WITH OTHER APPROXIMATIONS WILL BE INVESTIGATED TO QUALITFY THE RESULTING ERROR AND PERFORMANCE. THIS NEW TECHNIQUE IS EXPECTED TO BE AS MUCH AS 1000 TIMES FASTER THAN CONVENTIONAL METHOD-OF-MOMENTS FORMULATIONS FOR TYPICAL PROBLEMS. THE FEASIBILITY OF EXTENDING THIS APPROACH TO MORE COMPLEX GEOMETRIES AND TO HYBRID SOLUTION TECHNIQUES, WHERE THE FAST RESPONSE SOLUTION IS OVERLAID INTO ANOTHER SOLUTION TECHNIQUE SUCH AS A NON-LINEAR FINITE DIFFERENCE COMPUTATION, WILL BE EVALUATED.

* information listed above is at the time of submission.

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