TIME-DOMAIN MODELING IN ELECTROMAGNETICS

This article discusses general time-domain modeling in electromagnetic s, considering why time-domain modeling may be worth doing and some ch oices to be made among the principle modeling approaches, and briefly traces the evolution of present time-domain modeling. The steps involv ed in developing and using a time-domain model are discussed as are so me specific aspects of performing time-domain modeling using different ial-equation- and integral-equation-based models. An in-depth discussi on of more general issues that can arise in time-domain modeling is pr esented. Finally, time-domain applications are characterized with resp ect to computer requirements. A representative list of some available time-domain software is also presented along with some concluding comm ents.