Milestones
2006 Annual Report
ANNUAL PROGRESS SUMMARY
Reporting Period: 1 September 2005 to 31 August 2006
Annual accomplishments (200 words max): (1) A novel dual-field time-domain finite-element domain-decomposition method was developed for numerical simulation of large antennas and arrays. The method significantly reduces the computation time and memory requirements for large-scale applications. It achieves super-linear acceleration on a parallel computing platform. Highly complex antennas and arrays have been simulated successfully. (54 words) (2) A fast and comprehensive time-domain method was developed for analyzing electromagnetic compatibility and interference phenomena on complex structures that involve electrically large platforms along with cable-fed antennas, shielding enclosures, and printed circuit boards. New time-domain Calderon preconditioners were developed that render the MOT system second kind and far less sensitive to integration errors. (56 words) (3) A Krylov subspace-based model order reduction methodology was developed for use in conjunction with the finite element approximation of electromagnetic systems containing dispersive materials and sub-structures characterized in terms of frequency-dependent electromagnetic transfer function matrices. A methodology was also developed for the rational function fitting of broadband transfer functions of passive electromagnetic structures. (55 words) (4) A mixed-form fast multipole algorithm was developed that is valid from static to dynamic wave problems. A novel thin dielectric sheet model that is more accurate than the conventional model was also developed. Approaches to develop a multipole-free fast algorithm for layered medium using the fast inhomogeneous plane wave algorithm have been investigated. (55 words)
Archival publications (published) during reporting period:
- Z. Lou and J. M. Jin, "An accurate waveguide port boundary condition for the time-domain finite element method," IEEE Trans. Microwave Theory Tech., vol. 53, no. 9, pp. 3014-3023, Sept. 2005.
- Z. Lou and J. M. Jin, "Modeling and simulation of broadband antennas using the time-domain finite element method," IEEE Trans. Antennas Propagat., vol. 53, no. 12, pp. 4099-4110, Dec. 2005.
- L. E. R. Petersson and J. M. Jin, "A three-dimensional time-domain finite element formulation for periodic structures," IEEE Trans. Antennas Propagat., vol. 54, no. 1, pp. 12-19, Jan. 2006.
- L. E. R. Petersson and J. M. Jin, "Analysis of periodic structures via a time-domain finite element formulation with a Floquet ABC," IEEE Trans. Antennas Propagat., vol. 54, no. 3, pp. 933-944, March 2006.
- Z. Lou and J. M. Jin, "A novel dual-field time-domain finite-element domain-decomposition method for computational electromagnetics," IEEE Trans. Antennas Propagat., vol. 54, no. 6, pp. 1850-1862, June 2006.
- A. E. Yilmaz, J. M. Jin, and E. Michielssen, "A TDIE-based asynchronous electromagnetic-circuit simulators," IEEE Microwave Wireless Comp. Lett., vol. 16, no. 3, pp. 122-124, March 2006.
- L. J. Jiang and W. C. Chew, "A mixed-form fast multipole algorithm," IEEE Trans. Antennas Propagat., vol. 53, no. 12, pp. 4145-4156, December, 2005.
- M. A. Saville and W. C. Chew, "Error control of 2-D FIPWA in complex homogeneous media," J. Electromagn. Waves Appl., vol. 20, no. 5, pp. 567-581, 2006.
- M. S. Tong and W. C. Chew, "Nystrom method with edge condition for electromagnetic scattering by 2D open structures," PIER, 62, pp. 49-68, 2006.
- I. T. Chiang and W. C. Chew, "Thin dielectric sheet simulation by surface integral equation using modified RWG and pulse bases," IEEE Trans. Antennas Propagat., vol. 54, no. 7, pp. 1927-1934, July 2006.