Σύγκριση μεθόδων

	Μέθοδος Γραμμής Μεταφοράς	Τεχνική Πεπερασμένων Ολοκληρώσεων
Πεδίο	Ηλεκτρολογική Μηχανική	Ηλεκτρολογική Μηχανική
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1971	1977
Δημιουργός	Peter Johns	Thomas Weiland
Τύπος	Transmission line network analogous to electromagnetic fields	Discrete space-time integration method for Maxwell equations
Θεμελιώδης πηγή	Johns, P. B., & Beurle, R. L. (1971). Numerical solution of 2-D scattering problems using a transmission-line calculator. Proceedings of the IEE, 118(9), 1203-1208.	Weiland, T. (1977). A new method for the solution of Maxwell's equations. Zeitschrift für Naturforschung, 31(7), 861-873.
Εναλλακτικές ονομασίες	TLM, Transmission line matrix	FIT, Finite integration method
Συναφείς	3	3
Σύνοψη	The Transmission-Line Matrix (TLM) method is a direct discretization of Maxwell equations using an equivalent transmission line network. Introduced by Johns and Beurle in 1971, TLM models electromagnetic fields as voltage and current waves propagating on coupled transmission lines. The method is intuitive, numerically stable, and efficient for both transient and frequency-domain electromagnetic problems. TLM remains competitive with FDTD and FIT for many RF and microwave applications.	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.