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Circuit model for a symmetrical condensed TLM node
Author(s) -
Mlakar J.
Publication year - 1993
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.1660060303
Subject(s) - equivalent circuit , transformer , node (physics) , topology (electrical circuits) , scattering , s matrix theory , electrical element , computer science , physics , mathematics , electronic engineering , electrical engineering , engineering , voltage , optics , acoustics
An equivalent circuit for a symmetrical condensed TLM node is presented. The basic circuit has twelve ports and consists of 24 1:1 ideal transformers. Three additional conductances model the conductivity of the medium. The circuit is extended with additional ideal transformers giving six ports for short‐circuit and open‐circuit stubs which model the permittivity and permeability of the inhomogeneous medium. The scattering matrix of the 18‐port network is determined symbolically by solving a set of linear circuit equations. The matrix agrees with previously published results for a symmetrical condensed TLM node, obtained from Maxwell's equations.