Numerical Modeling of Complex Electronic Systems

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00178-02-C-3059
Agency Tracking Number: N02-090-02
Amount: $69,823.00
Phase: Phase I
Program: SBIR
Awards Year: 2002
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Emag Technologies, Inc.
1340 Eisenhower Place, Ann Arbor, MI, 48108
DUNS: 836493759
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Werner Thiel
 Senior Research Engineer
 (734) 973-6600
Business Contact
 Kazem Sabet
Title: President
Phone: (734) 973-6600
Research Institution
"A hybrid technique combining frequency and time domain methods is proposed to accurately and efficiently model the energy coupling in complex electronic systems. With a hybrid technique, each sub-circuit of a complex system can be analyzed by the mostproper numerical method so that the computational effort can be significantly decreased. Whereas large-scale regions will be characterized by a Haar-based Multiresolution Time-Domain (MRTD) scheme, sub-circuits containing a lot of details are modeled withthe Method of Moments (MoM), Finite Element (FEM) or Finite Difference Time-Domain (FDTD) technique. Huygens surface currents are applied on the boundary surfaces of the sub-geometries to interface the frequency and time-domain methods. In addition to theMoM method, an analytical approach is proposed to model penetrable conductive shields in FDTD or MRTD efficiently. Furthermore, for highly nonlinear sub-circuits, an extended FDTD method will be available and will be combined with the MRTD method. Finally,the computational efficiency of the hybrid method will be demonstrated by a comparison of the accuracy and computation time with a brute-force full-wave method. The outcome of this project will benefit electronic system designers in both the military andindustry by letting them accurately characterize the electromagnetic coupling effects among the various sub-circuits."

* information listed above is at the time of submission.

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