Modelling of coupling between transient electromagnetic field and complex wire structures

Numerical model of transmission procedure in a cylindrical metallic cavity compared with measured results

“…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 [16]. This wire network is usually placed into the centre of the TLM nodes to allow modelling of complex wire structures, e.g.…”

“…Difference in the TLM and experimental model regarding the cavity excitation caused that the TLM results of resonant frequencies in the case of impulse excitation were shifted from the experimental ones. Therefore, improvement in the form of TLM wire node [16] was used to efficiently account for feed probe presence inside the cavity which allows accurate numerical investigation of the real excitation influence to the resonant modes frequencies and level of EM field [17], detected from the reflection characteristic (S 11 ).…”

Analysis of feed waveguide length influence on EM field in microwave applicator using TLM method

“…An efficient computational algorithm of scattering properties, based on enforcing continuity of the electric and magnetic fields and conservation of charge and magnetic flux [13] 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 [14]. This wire network is usually placed into the centre of the TLM nodes to allow modelling of complex wire structures, e.g.…”

TLM analysis of a cylindrical metallic cavity excited with a real-feed probe

“…The TLM wire node is based on the SCN with one small modification in the form of additional link and stub lines interposed over the existing network to account for the increase in capacitance and inductance of the medium caused by the wire's presence [12]. This wire network is usually placed in the centre of the TLM nodes in order to allow modelling of complex wire structures, for example, wire junctions and bends (Fig.…”

“…Difference in the TLM and experimental model regarding the cavity excitation caused the TLM results of resonant frequencies and field strength (in the case of impulse excitation) to be shifted from the experimental ones. A recent improvement in the form of a TLM wire node [12] can be used to efficiently account for probe presence inside the cavity, which will allow for more accurate numerical investigation of the real excitation influence on the resonant frequencies.…”