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Analysis of the CDF biorthogonal MRTD method with application to PEC targets

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3 Author(s)
Xianyang Zhu ; Dept. of Electr. & Comput. Eng., Duke Univ., Durham, NC, USA ; T. Dogaru ; L. Carin

We consider the biorthogonal Cohen-Daubechies- Feauveau (CDF) wavelet family in the context of a biorthogonal multiresolution time-domain (bi-MRTD) analysis. A disadvantage of previous bi-MRTD analyses is an inability to handle abrupt changes in material properties, particularly for a perfect electric conductor (PEC). A multiregion method is proposed to address PEC targets. The proposed method is based on the fact that the CDF bi-MRTD may be viewed as a linear combination of several conventional finite-difference time-domain (FDTD) solutions. The implementation of the connecting surface is also simplified. Several numerical results are presented, with comparison to analytic and FDTD results.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:51 ,  Issue: 9 )