Modelling of coupling between transient electromagnetic field and complex wire structures

Efficient integral cylindrical transmission‐line matrix modelling of a coaxially loaded probe‐coupled cavity

“…where r w is the wire radius, k Cr and k Lr are factors empirically obtained by using known characteristics of the TLM network [16]. Therefore an additional connecting procedure for wire segments running along a radial direction has been developed and implemented into the existing TLM-based software in the cylindrical grid [18].…”

“…Wlodarczyk and Johns [15] proposed a new wire interface for graded TLM mesh where the wire is threaded between two symmetrical condensed nodes (SCNs). The approach presented in this paper builds upon the technique for simulating coupling between complex wire structures and the transient EM field developed by Trenkic et al [16], which has been further extended to enable modelling of multiconductor cables by Wlodarczyk et al [17]. A development of the empirically based compact wire TLM model, has allowed for simple incorporation of voltage/current sources and lumped loads, taking into account physical dimensions of the wire probes which are considerably smaller than the node size and determined only by the mesh resolution [15,16].…”

TLM modelling of microwave applicator with an excitation through the waveguide

“…An efficient computational algorithm of scattering properties, based on enforcing continuity of the electric and magnetic fields and conservation of charge and magnetic flux [7], is implemented to speed up the simulation process. TLM wire node is based on SCN with one small modification in the form of additional link and stub lines interposed over the exiting network to account for increase of capacitance and inductance of the medium caused by wire presence [12]. This wire network is usually placed into the centre of the TLM nodes to allow modelling of complex wire structures, e.g.…”

Compact TLM models for efficient EMC simulation

“…More sophisticated solution in the form of compact wire model or wire node, which can allow for accurate modelling of wires with a considerably smaller diameter than the node size, has been introduced [4]. It use special wire netyork embedded between nodes ( Fig.…”

“…wire junction, which can couple with ordinary TLM p o w via up to thmshunt sub-circuit, represented by equivalent Thevenin circuib for every coupling direction. Once the scattering for the wire sub-circuit is performed[4], the equivalent current sources I,; for every coupling direction can be determined. These sources provide a feedback mechanism for the wire-to-fieldcoupling and are used to calculate voltage pulses reflected into the ordinary TLM node ports.…”