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An efficient 2-D FDTD algorithm using real variables (guided wave structure analysis)

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2 Author(s)
Xiao, S. ; Dept. of Electr. & Comput. Eng., Victoria Univ, BC, Canada ; Vahldieck, R.

A two-dimensional finite-difference-time-domain (FDTD) method is proposed for the full-wave analysis of arbitrarily shaped guided wave structures. By using a phase shift beta Delta z along the z-direction (propagation direction), and assuming the limiting case of Delta z approaching zero, the propagation constant of hybrid modes is calculated using a two-dimensional mesh with a truly two-dimensional grid. When the field equation is multiplied by an additional factor j, only real variables are needed in the computation, leading to a very fast algorithm.<>

Published in:

Microwave and Guided Wave Letters, IEEE  (Volume:3 ,  Issue: 5 )