Abstract

A novel subgridding scheme that hybridizes the recently developed unconditionally stable one-step leapfrog alternately-direction-implicit finite-difference time-domain (ADI-FDTD) method and the conventional finite-difference time-domain (FDTD) method is proposed. The conventional explicit FDTD method is applied to coarse mesh regions while the leapfrog ADI-FDTD method to locally subgridded mesh regions. The difference between the proposed subgridding scheme and the existing ones lie in the fact that only spatial interpolation of fields is required at the interface between coarse and subgridded meshes. As a result, computational efficiency is improved while numerical stability maintained. Both stability and efficiency are verified through numerical experiments in simulating a substrate integrated waveguide.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.