By Topic

Perfect plane wave injection for Crank-Nicholson time-domain method

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
$33 $33
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

3 Author(s)
Z. Huang ; Arizona State University, Tempe, AZ ; G. Pan ; H. K. Pan

The authors derive a 1D multipoint auxiliary source propagator for perfect plane wave injection (PWI) with the Crank-Nicholson time-domain scheme for the first time. By projecting the 2D dispersion equation onto the 1D case, the identical dispersion relation can be realised between the 1D case and the 2D case, which leads to a perfect PWI at any angle forming an integer grid cell ratio. Several numerical experiments are conducted, which show leakage errors on the order of finite precision (-300-dB for double precision) when -t is around the Courant-Friedrichs-Levy (CFL) limit. Beyond the CFL limit, the leakage error is still kept low even though it deteriorates with increasing time-step increments. Good agreement is observed between the proposed method and analytic solution for scattering of a 2D perfect electric conductor circular scatterer.

Published in:

IET Microwaves, Antennas & Propagation  (Volume:4 ,  Issue: 11 )