Finite Integration Technique
The Finite Integration Technique (FIT) is a numerical method for solving Maxwell equations on structured grids, formulating electromagnetics as a system of integral equations over grid cells. Introduced by Thomas Weiland in 1977, FIT bridges finite differences and finite elements, offering excellent accuracy, stability, and computational efficiency for a wide range of electromagnetic problems. FIT is the foundation of commercial solvers like CST Microwave Studio and is widely used in RF, microwave, and EMC engineering.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Weiland, T. (1977). A new method for the solution of Maxwell's equations. Zeitschrift für Naturforschung, 31(7), 861-873. · URL
- Clemens, M., & Weiland, T. (2001). Discrete electromagnetism with the finite integration technique. Progress in Electromagnetics Research, 32, 65-87. · DOI 10.2528/pier00080103
- Weiland, T. (1996). Time domain electromagnetic field computation with finite difference methods. International Journal of Numerical Modelling, 9(4), 295-319. · DOI 10.1002/(sici)1099-1204(199607)9:4<295::aid-jnm240>3.0.co;2-8
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