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A New Expression for the 3-D Dyadic FDTD-Compatible Green's Function Based on Multidimensional Z-Transform
Abstract
In this letter, a new analytic expression for the time-domain discrete Green's function (DGF) is derived for the 3-D finite-difference time-domain (FDTD) grid. The derivation employs the multidimensional Z-transform and the impulse response of the discretized scalar wave equation (i.e., scalar DGF). The derived DGF expression involves elementary functions only and requires the implementation of a single function in the multiple-precision arithmetic. For its verification, antennas were simulated in the DGF formulation of the FDTD method with the use of the derived expression demonstrating the correctness of the derivation.
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
IEEE Antennas and Wireless Propagation Letters
no. 14,
pages 1002 - 1005,
ISSN: 1536-1225 - Language:
- English
- Publication year:
- 2015
- Bibliographic description:
- Stefański T.: A New Expression for the 3-D Dyadic FDTD-Compatible Green's Function Based on Multidimensional Z-Transform// IEEE Antennas and Wireless Propagation Letters. -Vol. 14, (2015), s.1002-1005
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/lawp.2015.2388955
- Verified by:
- Gdańsk University of Technology
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