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| Tècnica d'Integració Finita× | Anàlisi de Paràmetres S× | |
|---|---|---|
| Camp | Enginyeria elèctrica | Enginyeria elèctrica |
| Família | Process / pipeline | Process / pipeline |
| Any d'origen≠ | 1977 | 1965 |
| Autor original≠ | Thomas Weiland | Kaneyuki Kurokawa |
| Tipus≠ | Discrete space-time integration method for Maxwell equations | Wave-based description of RF/microwave network behavior |
| Font seminal≠ | Weiland, T. (1977). A new method for the solution of Maxwell's equations. Zeitschrift für Naturforschung, 31(7), 861-873. link ↗ | Kurokawa, K. (1965). Power waves and the scattering matrix. IEEE Transactions on Microwave Theory and Techniques, 13(3), 194-202. DOI ↗ |
| Àlies≠ | FIT, Finite integration method | S-parameter, Scattering parameters, Network parameters |
| Relacionats | 3 | 3 |
| Resum≠ | 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. | S-Parameters (Scattering Parameters) characterize RF and microwave networks by their transmission and reflection of voltage waves. Introduced by Kurokawa in 1965, S-parameters are ideal for high frequencies where wave effects dominate. Unlike impedance (Z), admittance (Y), or hybrid parameters, S-parameters are directly measurable with network analyzers, naturally account for characteristic impedance, and are intuitive for cascade analysis. S-parameters are the standard language of RF engineering. |
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