A finite-difference time-domain method for solving electromagnetic problems with bandpass-limited sources
- 1 January 1999
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 47 (1), 9-15
- https://doi.org/10.1109/8.752978
Abstract
The complex-envelope representation of bandpass-limited signals is used to formulate a bandpass-limited vector wave equation and a new finite-difference time-domain (FDTD) scheme that solves the bandpass-limited vector wave equation is presented. For narrow-band electromagnetic systems, this new method allows the time step to be several orders of magnitude larger than current FDTD formulations while maintaining an amplification factor equal to one. Example results obtained by this method are presented and compared with analytic solutions.This publication has 2 references indexed in Scilit:
- On the Partial Difference Equations of Mathematical PhysicsIBM Journal of Research and Development, 1967
- Hyperbolic Difference Equations: A Review of the Courant-Friedrichs-Lewy Paper in the Light of Recent DevelopmentsIBM Journal of Research and Development, 1967