Abstract
We report a frequency-domain near-field-to-far-field transform (NFFFT) for the numerical modeling of radiation and scattering in planar multilayered spaces. Although the results are equivalent to those of Demarest (1996), the formulation is more compact, more stable, and applicable to observation angles in the lower half space. Furthermore, the results are presented in a vector-potential formalism that is more easily adaptable to existing free-space implementations. The NFFFT algorithm can be used in any differential-equation- based finite numerical method, including but not limited to the finite-difference time-domain (FDTD) method and the finite-element method (FEM).
Original language | English (US) |
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Article number | 6142018 |
Pages (from-to) | 1878-1885 |
Number of pages | 8 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 60 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2012 |
Funding
Manuscript received April 28, 2011; revised August 17, 2011; accepted September 14, 2011. Date of publication January 31, 2012; date of current version April 06, 2012. This work was supported by the NIH grants R01EB003682 and R01CA128641.
Keywords
- FDTD methods
- finite difference methods
- finite element methods
- near-field far-field transformation
ASJC Scopus subject areas
- Electrical and Electronic Engineering