The finite-difference time-domain (FDTD) and the finite-volume time-domain (FVTD) methods in solving Maxwell's equations
The finite-difference time-domain (FDTD) and its current generalizations have been demonstrated to be useful and powerful tools for the calculation of the radar cross section (RCS) of complicated objects, the radiation of antennas in the presence of other structures, and other applications. The math...
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| Vydané v: | IEEE transactions on antennas and propagation Ročník 45; číslo 3; s. 354 - 363 |
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| Hlavní autori: | , |
| Médium: | Journal Article |
| Jazyk: | English |
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IEEE
01.03.1997
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| ISSN: | 0018-926X |
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| Abstract | The finite-difference time-domain (FDTD) and its current generalizations have been demonstrated to be useful and powerful tools for the calculation of the radar cross section (RCS) of complicated objects, the radiation of antennas in the presence of other structures, and other applications. The mathematical techniques for conformal FDTD have matured; the primary impediments to its implementation are the complex geometries and material properties associated with the problem. Even under these circumstances, FDTD is more flexible to implement because it is based on first principles instead of a clever mathematical trick. This paper gives an account of some new results on conformal FDTD obtained by the authors and their associates at Lockheed Martin Space Company since 1988. The emphasis is on nonsmooth boundary condition simulation. |
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| AbstractList | The finite-difference time-domain (FDTD) and its current generalizations have been demonstrated to be useful and powerful tools for the calculation of the radar cross section (RCS) of complicated objects, the radiation of antennas in the presence of other structures, and other applications. The mathematical techniques for conformal FDTD have matured; the primary impediments to its implementation are the complex geometries and material properties associated with the problem. Even under these circumstances, FDTD is more flexible to implement because it is based on first principles instead of a clever mathematical trick. This paper gives an account of some new results on conformal FDTD obtained by the authors and their associates at Lockheed Martin Space Company since 1988. The emphasis is on nonsmooth boundary condition simulation. The finite-difference time-domain (FDTD) and its current generalizations have been demonstrated to be useful and powerful tools for the calculation of the radar cross section (RCS) of complicated objects, the radiation of antennas in the presence of other structures, and other applications. The mathematical techniques for conformal FDTD have matured; the primary impediments to its implementation are the complex geometries and material properties associated with the problem. Even under these circumstances, FDTD is more flexible to implement because it is based on first principles instead of a clever mathematical trick. This paper gives an account of some new results on conformal FDTD obtained by the authors and their associates at Lockheed Martin Space Company since 1988. The emphasis is on nonsmooth boundary condition simulation Finite-difference time-domain (FDTD) and finite volume time domain (FVTD) algorithms for solving Maxwell's equations are presented. The various techniques are illustrated with some nontrivial calculative examples. The integral forms of the Maxwell's equations are demonstrated to be straightforward to understand and implement. Judicious use of these two integral forms has made numerical simulation of initial boundary-value problems involving Maxwell's equations simple and intuitive. The emphasis here is on nonsmooth boundary condition simulation. (AIAA) |
| Author | Chen, J.S. Yee, K.S. |
| Author_xml | – sequence: 1 givenname: K.S. surname: Yee fullname: Yee, K.S. organization: Lockheed Martin Palo Alto Res. Lab., CA, USA – sequence: 2 givenname: J.S. surname: Chen fullname: Chen, J.S. |
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| Cites_doi | 10.1109/TEMC.1981.303970 10.1006/jcph.1994.1159 10.1109/8.320754 10.1109/74.414731 10.1006/jcph.1995.1114 |
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| SubjectTerms | Boundary conditions Finite difference methods Geometry Impedance Integral equations Material properties Maxwell equations Radar antennas Radar cross section Time domain analysis |
| Title | The finite-difference time-domain (FDTD) and the finite-volume time-domain (FVTD) methods in solving Maxwell's equations |
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