1999 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

IEEE Transactions on Antennas and Propagation
Volume 47 Number 11, November 1999

Table of Contents for this issue

Complete paper in PDF format

PML Absorbing Boundary Conditions for the Characterization of Open Microwave Circuit Components Using Multiresolution Time-Domain Techniques (MRTD)

Emmanouil M. Tentzeris, Member, IEEE, Robert L. Robertson, James F. Harvey, Member, IEEE, and Linda P. B. Katehi, Fellow, IEEE

Page 1709.

Abstract:

The recently developed multiresolution time-domain technique (MRTD) is applied to the modeling of open microwave circuit problems. Open boundaries are simulated by the use of a novel formulation of the perfect matching layer (PML) absorber. PML is modeled both in split and nonsplit forms and can be brought right on the surface of the planar components. The applicability of the MRTD technique to complex geometries with high efficiency and accuracy in computing the fields at discontinuities is demonstrated through extensive comparisons to conventional finite difference time domain (FDTD). In addition, the numerical reflectivity of the PML absorber is investigated for a variety of cell sizes, some of which are very close to the Nyquist limit (/2).

References

  1. M. Krumpholz and L. P. B. Katehi, "MRTD: New time domain schemes based on multiresolution analysis," IEEE Trans. Microwave Theory Tech., vol. 44, pp. 555-561, Apr. 1996.
  2. E. M. Tentzeris, R. L. Robertson, M. Krumpholz, and L. P. B. Katehi, "Application of MRTD to printed transmission lines," in Proc. Microwave Theory Tech. Soc., 1996, pp. 573-576.
  3. M. Krumpholz and L. P. B. Katehi, "MRTD modeling of nonlinear pulse propagation," IEEE Trans. Microwave Theory Tech., to be published.
  4. E. Tentzeris, R. Robertson, A. Cangellaris, and L. P. B. Katehi, "Space- and time-adaptive gridding using MRTD," in Proc. Microwave Theory Tech. Soc., Denver, CO, 1997, pp. 337-340.
  5. J.-P. Berenger, "A perfectly matched layer for the absorption of elecromagnetic waves," J. Comput. Phys., vol. 114, pp. 185-200, 1994.
  6. E. Tentzeris, R. Robertson, J. Harvey, and L. P. B. Katehi, "Stability and dispersion analysis of Battle-Lemarie based MRTD schemes," IEEE Trans. Microwave Theory Tech., to be published.
  7. D. M. Sullivan, "An unsplit step 3-D PML for use with the FDTD method," IEEE Microwave Guided Wave Lett., vol. 7, pp. 184-186, July 1997.
  8. B. C. Wadell, Transmission Line Design Handbook.Norwood, MA: Artech House, 1991, pp. 136-137.
  9. R. Robertson, E. Tentzeris, M. Krumpholz, and L. P. B. Katehi, "Application of MRTD analysis to dielectric cavity structures," in Proc. Microwave Theory Tech. Soc., 1996, pp. 1840-1843.
  10. R. Robertson, E. Tentzeris, and L. P. B. Katehi, "Modeling of membrane patch antennas using MRTD analysis," in Proc. Antennas Propagat. Soc., 1997, pp. 126-129.