Open source cable models for EMI simulations

Greedy, Steve; Smartt, Christopher; Basford, M. J.; Thomas, D.W.P.

doi:10.1109/memc.2018.8479343

Cited by 7 publications

(7 citation statements)

References 17 publications

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“…Usually, in standard transmission-line theory, the conductor voltages are defined relative to one of the conductors chosen to be the reference [12,30]. This was the choice indirectly adopted in reference [1].…”

Section: Transmission-linesmentioning

confidence: 99%

“…Which, without the sources, are the standard transmission-line equations in frequency domain, such as shown in (2) of reference [30] or (6.7) and (6.8) of reference [31].…”

Section: Transmission-linesmentioning

confidence: 99%

“…To include the effect of the transversal mode, we will define the so-called conductor voltages. Usually, in standard transmission-line theory, the conductor voltages are defined relative to one of the conductors chosen to be the reference [12,30]. Then, to include the effect of the transversal mode, here, we will also define the conductor "j" voltage as the integral of the transversal electric field strength "E t " between the conductor "j" and the reference conductor:…”

mentioning

confidence: 99%

“…For the special case of time-harmonic electromagnetic fields, or in frequency domain, (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12) and (2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13) Which, without the sources, are the standard transmission-line equations in frequency domain, such as shown in (2) of reference [30] or (6.7) and (6.8) of reference [31].…”

mentioning

confidence: 99%

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Conducted and Radiated Interference on Interconnection’s Lines

Munhoz-Rojas¹

2019

Adv. sci. technol. eng. syst. j.

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There exists a profound difficulty of communication between the people that works in the EMC area in circuit terms and the people that works in field terms. In this paper we show that when the matter is predominantly distributed along a certain direction in space, as for transmission lines, the electromagnetic field can be divided in two modes, each of them with two degrees of freedom, that are practically independent: a longitudinal TM (transverse magnetic) mode and a transversal TE (transverse electric) mode. We also show that two degrees of freedom of the longitudinal mode are the ones that are described by circuit's theory. This formulation is based on the observation that, when the matter is macroscopically described by constitutive laws, the electromagnetic field within the matter can be fully characterized in terms of the potential fields, in total four degrees of freedom. Using the above formulation, we put forward a generalized formulation of the coupling of an external electromagnetic field to a transmission line, valid in any time scale. We apply the above concepts to study, in a common theoretical framework, the iconic case of the conducted and radiated interferences on a transmission line, and we show that: 1-Differently than what is normally assumed in standard transmission-line theory, the normal operation mode and the internally-produced electromagnetic field are predominantly a longitudinal TM mode; 2-The longitudinal mode is affected by both the conducted disturbances and the radiated disturbances; while 3-The transverse mode is affected only by the radiated disturbances. Then, only for systems where the longitudinal mode is predominant, and, the longitudinal and the transversal modes are practically decoupled, EMI can be simulated using circuit simulation software's. Also, to further illustrate the interpretation power of this formulation, we present some other application examples.

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Section: Transmission-linesmentioning

confidence: 99%

“…Which, without the sources, are the standard transmission-line equations in frequency domain, such as shown in (2) of reference [30] or (6.7) and (6.8) of reference [31].…”

Section: Transmission-linesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Conducted and Radiated Interference on Interconnection’s Lines

Munhoz-Rojas¹

2019

Adv. sci. technol. eng. syst. j.

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“…Simulation tests are developed using LTspice as the software to simulate the cable bundles. The models created are suitable for both frequency domain and transient simulation providing the capability to incorporate realistic transmission line effects into circuit level simulation, including interactions with non-linear terminations [2].…”

Section: Introductionmentioning

confidence: 99%

Data Links Modelling under Radiated EMI and its Impact on Sampling Errors in the Physical Layer

Peña-Quintal

Basford

Niewiadomski

et al. 2020

2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE

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This paper deals with the effects of radiated EMI on serial communication links using software modelling with particular emphasis on the physical layer. The effect of EMI in data links is an important problem to solve in many harsh environments such as the automotive and the transport sector as well as communications, in fact the EMI effect is able to produce sampling errors in digital/binary operations. Currently binding standards prefer the analysis in frequency domain to account for EMI impact, however when dealing with data links, time domain analysis might report useful information, therefore a link between those two is needed. The cable models are developed using SACAMOS modelling software, taking into consideration the frequency parameters. The model can be used on almost any SPICE simulator to analyse the effect of EMI. The simulations performed in this research are verified on a real laboratory experiment in order to demonstrate the capabilities of SACAMOS.

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Analysis on Common to Differential Mode Conversion Within Automotive Communication Systems

Austermann

Frei

2021

2021 IEEE International Joint EMC/SI/PI and EMC Europe Symposium

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Open source cable models for EMI simulations

Cited by 7 publications

References 17 publications

Conducted and Radiated Interference on Interconnection’s Lines

Conducted and Radiated Interference on Interconnection’s Lines

Data Links Modelling under Radiated EMI and its Impact on Sampling Errors in the Physical Layer

Analysis on Common to Differential Mode Conversion Within Automotive Communication Systems

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