Transient analysis of the EM field coupling to multi-conductor transmission lines using the NILT method

Rajhi, Adnen; Ghnimi, Said; Gharssallah, Ali

doi:10.1017/s1759078712000153

Cited by 2 publications

(2 citation statements)

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“…The coupling of a plane EM wave to MTL has been investigated by several authors in the time domain as well as in the frequency domain [5][6][7][8]. In [8], Paul presents three methods (spice model, time domain-to-frequency domain transformation, and finite difference time domain method) to solve the problem of an MTL excited by an incident EM field and to predict the voltage and current in the time domain or in the frequency domain.…”

Section: Introductionmentioning

confidence: 99%

“…Traditional models of transmission lines represent phenomena related to the EM compatibility mode channel (near and far-crosstalk, etc.) [1][2][3][4]; by contrast, they do not take into account the phenomena related to the immunity radiated by an external disturbance wave (radiated mode).The coupling of a plane EM wave to MTL has been investigated by several authors in the time domain as well as in the frequency domain [5][6][7][8]. In [8], Paul presents three methods (spice model, time domain-to-frequency domain transformation, and finite difference time domain method) to solve the problem of an MTL excited by an incident EM field and to predict the voltage and current in the time domain or in the frequency domain.…”

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confidence: 99%

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Variation effect of plane-wave incidence on multiconductor transmission lines

Mejdoub

Rouijaa

Ghammaz

2015

Int. J. Microw. Wireless Technol.

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This paper addresses the study of the variation effects of incident plane wave on a multiconductor transmission line (MTL), using a coupling circuit model of MTL line with plane wave based on the method of characteristics (Branin method). This model is valid in the time and frequency domains. It has also an advantage of not presupposing the conditions of the charges applied to its ends, which allows it to be easily inserted in circuit simulators, such as SPICE, SABER, and ESACAP. We confirm the validity of this model by comparing our simulation results under ESACAP with other results, and we discuss the variation effects of the incident plane wave on an MTL line.When multiconductor transmission line (MTL) is subjected to the incident wave interference, parasite voltages manifest at its end. This field/line coupling is represented by sources of voltages and currents forced and distributed along the line. Such sources are derived from components of the electromagnetic (EM) field of the incident wave. The latter are determined in the absence of the line. Traditional models of transmission lines represent phenomena related to the EM compatibility mode channel (near and far-crosstalk, etc.) [1][2][3][4]; by contrast, they do not take into account the phenomena related to the immunity radiated by an external disturbance wave (radiated mode).The coupling of a plane EM wave to MTL has been investigated by several authors in the time domain as well as in the frequency domain [5][6][7][8]. In [8], Paul presents three methods (spice model, time domain-to-frequency domain transformation, and finite difference time domain method) to solve the problem of an MTL excited by an incident EM field and to predict the voltage and current in the time domain or in the frequency domain.For more than 40 years Bergeron's model [9] has provided a widely accepted solution for transmission line modeling, It is used to study the ideal or coupled transmission lines, connected to linear or nonlinear loads [5,6,10]. The graphical method of Bergeron provides voltage and current levels at the ends of a transmission line for each new signal reflection at the end of the line.But in the last 40 years electrical systems have changed greatly. The aperture of the markets and the introduction of renewable energy have led systems to operate at the limit of safety. The major advantage of the graphical method is the ability to account for nonlinear loads. However, the major drawback of this method is that practically outside the ideal line and lossless lines coupled, the analysis is very complex and graphics obtained are very difficult to exploit.However, there exist equivalent models of fields/lines coupling, which are only valid in the frequency domain; namely Taylor's model [11] whose unknowns of the system formed by the two telegrapher's equations are the total voltage and current V(z) and I(z), the Agrawal model [12] whose unknowns of the telegrapher's equations are the diffracted voltage V dif (z) and the total current I(z), and the Rachidi model [13]...

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