کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
522117 | 867812 | 2007 | 18 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Application of the symplectic finite-difference time-domain scheme to electromagnetic simulation Application of the symplectic finite-difference time-domain scheme to electromagnetic simulation](/preview/png/522117.png)
An explicit fourth-order finite-difference time-domain (FDTD) scheme using the symplectic integrator is applied to electromagnetic simulation. A feasible numerical implementation of the symplectic FDTD (SFDTD) scheme is specified. In particular, new strategies for the air–dielectric interface treatment and the near-to-far-field (NFF) transformation are presented. By using the SFDTD scheme, both the radiation and the scattering of three-dimensional objects are computed. Furthermore, the energy-conserving characteristic hold for the SFDTD scheme is verified under long-term simulation. Numerical results suggest that the SFDTD scheme is more efficient than the traditional FDTD method and other high-order methods, and can save computational resources.
Journal: Journal of Computational Physics - Volume 225, Issue 1, 1 July 2007, Pages 33–50