A uniform time-domain finite integration technique (TDFIT) using an efficient extraction of conformal information

A uniform time-domain finite integration technique (TDFIT) is presented. Unlike the previously published conformal methods, the proposed TDFIT can be used to model both perfect electrical conductors and dielectric objects. A simple and fast extraction of conformal information is developed according to a general and analytical function to improve the efficiency of the uniform TDFIT. Numerical results are presented to verify the accuracy of the method, with three examples covering scattering and radiation applications.