By Topic

An alternative approach for implementing periodic boundary conditions in the FDTD method using multiple unit cells

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Lee, R.T. ; Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA ; Smith, G.S.

In a previous work, a conceptually simple method for incorporating periodic boundary conditions into the finite-difference time-domain method was introduced. That work was limited to two-dimensional problems that were periodic in a single dimension. In this work, the method is extended to the more general case of three-dimensional problems that are periodic in two dimensions. For scattering problems, the computational cost of the method is shown to depend on the direction of the incident plane wave. The method is demonstrated by calculating the reflection coefficient from a dielectric slab and by modeling two perfectly conducting, infinitesimally thin periodic structures that are complementary to each other. For the complementary structures, the results computed by this method are shown to be related through Babinet's principle.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:54 ,  Issue: 2 )