A finite-difference time-domain near zone to far zone transformation [electromagnetic scattering] Export

@article{citeulike:3790390, abstract = {An efficient time-domain near-zone-to-far-zone transformation for FDTD (finite-difference-time-domain) computations is presented. The approach is to keep a running accumulation of the far-zone time-domain vector potentials due to the tangential electric and magnetic fields on a closed surface surrounding the scatterer at each time step. At the end of the computation, these vector potentials are converted to time-domain far-zone fields. Many far-zone bistatic directions can be included efficiently during one FDTD computational run. Frequency domain results can be obtained via fast Fourier transform. Wideband results for scattering from a perfectly conducting plate were obtained from a single FDTD computation transformed to the frequency domain, and compared with moment method results. This approach is significantly more efficient than computing many FDTD results using sinusoidally varying excitation if a wide frequency band is of interest. Coupled with recent advances in computing FDTD results for frequency-dependent materials, wideband results for far-zone scattering from targets including frequency-dependent materials can be obtained efficiently}, author = {Luebbers, R. J. and Kunz, K. S. and Schneider, M. and Hunsberger, F.}, booktitle = {Antennas and Propagation, IEEE Transactions on}, citeulike-article-id = {3790390}, citeulike-linkout-0 = {http://dx.doi.org/10.1109/8.81453}, citeulike-linkout-1 = {http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=81453}, doi = {10.1109/8.81453}, journal = {Antennas and Propagation, IEEE Transactions on}, keywords = {fdtd, nfff}, number = {4}, pages = {429--433}, posted-at = {2008-12-15 23:14:49}, priority = {2}, title = {A finite-difference time-domain near zone to far zone transformation [electromagnetic scattering]}, url = {http://dx.doi.org/10.1109/8.81453}, volume = {39}, year = {1991} }

TY - JOUR ID - citeulike:3790390 L3 - citeulike-article-id:3790390 N2 - An efficient time-domain near-zone-to-far-zone transformation for FDTD (finite-difference-time-domain) computations is presented. The approach is to keep a running accumulation of the far-zone time-domain vector potentials due to the tangential electric and magnetic fields on a closed surface surrounding the scatterer at each time step. At the end of the computation, these vector potentials are converted to time-domain far-zone fields. Many far-zone bistatic directions can be included efficiently during one FDTD computational run. Frequency domain results can be obtained via fast Fourier transform. Wideband results for scattering from a perfectly conducting plate were obtained from a single FDTD computation transformed to the frequency domain, and compared with moment method results. This approach is significantly more efficient than computing many FDTD results using sinusoidally varying excitation if a wide frequency band is of interest. Coupled with recent advances in computing FDTD results for frequency-dependent materials, wideband results for far-zone scattering from targets including frequency-dependent materials can be obtained efficiently IS - 4 JF - Antennas and Propagation, IEEE Transactions on EP - 433 TI - A finite-difference time-domain near zone to far zone transformation [electromagnetic scattering] VL - 39 T2 - Antennas and Propagation, IEEE Transactions on SP - 429 KW - fdtd KW - nfff AU - Luebbers, RJ AU - Kunz, KS AU - Schneider, M AU - Hunsberger, F PY - 1991/// UR - http://dx.doi.org/10.1109/8.81453 ER -