Finite Difference Time-Domain Modelling of Metamaterials: GPU Implementation of Cylindrical Cloak
Finite difference time-domain (FDTD) technique can be used to model metamaterials by treating them as dispersive material. Drude or Lorentz model can be incorporated into the standard FDTD algorithm for modelling negative permittivity and permeability. FDTD algorithm is readily parallelisable and can take advantage of GPU acceleration to achieve speed-ups of 5x-50x depending on hardware setup. Metamaterial scattering problems are implemented using dispersive FDTD technique on GPU resulting in performance gain of 10x-15x compared to conventional CPU implementation.
FDTD; Metamaterials; GPU; Cloak
- S. Gündüz, M. Çakir, G. Çakir, L. Sevgi, “Metamaterials and FDTD based numerical modeling studies,” ELECO, Sept. 2007.
- D. Schurig, J. J. Mock, B. J. Justice, S. A. Cummer, J. B. Pendry, A. F. Starr, and D. R. Smith, “Metamaterial Electromagnetic Cloak at Microwave Frequencies,” Science, vol. 314, no. 5801, pp. 977–980, 2006.
- C. Argyropoulos, Y. Zhao, Y. Hao, “Aradially-dependent dispersive ﬁnite-difference time-domain method for the evaluation of electromagnetic cloaks,” IEEE Transactions on Antennas and Propagation, vol. 57, pp. 1432–1441, May 2009.
- J. B. Schneider, Understanding the Finite Difference Time-Domain Method, (2010).
- K. Yee, “Numerical solution of inital boundary value problems involving maxwell’s equations in isotropic media,” IEEE Transactions on Antennas and Propagation, vol. 14, pp. 302–307, May 1966.
- R. W. Ziolkowski and E. Heyman, “Wave propagation in media having negative permittivity and permeability,” Physical Review E, vol. 64, October 2001.
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