A constant recursive convolution technique for frequency dependent scalar wave equation based FDTD algorithm

ÖZAKIN M. B., Aksoy S.

Journal of Computational Electronics, cilt.12, sa.4, ss.752-756, 2013 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 4
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1007/s10825-013-0479-2
  • Dergi Adı: Journal of Computational Electronics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.752-756
  • Anahtar Kelimeler: Dispersive medium, Finite difference time domain method, Recursive convolution
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

A scalar wave equation based recursive convolution finite-difference time-domain algorithm is developed for a frequency-dependent Debye medium in this paper. This algorithm is based on a recursive evaluation of a convolution integral in the time domain. A numerical example is presented for a problem of wide-band reflection from an air-water interface. The obtained results are compared with an analytical solution. The excellent agreement is observed between the numerical results. Memory and computational time advantages of the proposed method over Maxwell's equations based solution are also shown. © 2013 Springer Science+Business Media New York.