Estimating crosstalk in multiconductor transmission lines

Gordon, C.; Roselle, K.M.

doi:10.1109/96.496028

Cited by 11 publications

(5 citation statements)

References 4 publications

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“…To assess the P.U.L. parameters, The calculation of the magnetic field and the electric charges are necessary [1,2]. From the Maxwell's equations, the electric field can be obtained via the scalar and vector potentials:…”

Section: Theoretical Approachmentioning

confidence: 99%

Analysis of the Radiation from a Complex Multi-Conductor Transmission Line

Hasson¹,

Bousaleh²,

Chehade³

2024

RE&PQJ

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The Deployment of Power Line Transmission (PLT) and the development of new broadband services over the telephone network through technology like xDSL (x Digital Subscriber Line), requires higher data rates, consequently higher bandwidths, and operating frequencies. So it is generally accompanied with electromagnetic compatibility (EMC) phenomena, in particular the radiated emissions associated to the deployed system and used cables characteristics. In fact the electrical cable presents variations in their geometry, causing an increase in the electromagnetic radiation. This paper presents a theoretical approach to study a complex transmission line network over ground plane. This approach leads to an analytical expression for the evaluation of P.U.L. parameters of finite length twisted wires lines. These expressions give the capacitances and the inductances values in every point of the cable, the theoretical results are compared to measurements. The formalism is also derived to determine the distribution of the electromagnetic field radiated by Shielded or Unshielded Twisted Pair cables with discontinuity. The obtained results are compared to those provided by a code based on the antenna theory.

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Section: Theoretical Approachmentioning

confidence: 99%

Analysis of the Radiation from a Complex Multi-Conductor Transmission Line

Hasson¹,

Bousaleh²,

Chehade³

2024

RE&PQJ

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“…An equivalent Green's function problem can be formulated using the wave equation and boundary equations as written in (12). The Green's function problem is graphically represented by the circuit in Fig.…”

Section: General Solution To the Transmission Line Equations For Amentioning

confidence: 99%

“…Assuming the voltages and currents are of the same magnitude in both the aggressor and victim circuits, the real and imaginary parts of (22) show that the weak coupling assumption is valid when l 11 /l 12 1, |(c 11 + c 12 )/ − c 12 | 1, (r 1 + r 11 )/r 12 1, and |(g 11 + g 12 )/ − g 12 | 1. These per-unitlength parameter ratios defining weak coupling are similar to conditions that have been derived by others [3], [6], [11], [26].…”

Section: Simulations and Measurementsmentioning

confidence: 99%

Maximum Crosstalk Estimation in Weakly Coupled Transmission Lines

Halligan

Beetner

2014

IEEE Trans. Electromagn. Compat.

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Eliminating crosstalk problems in a complex system requires methods that quickly predict where problems may occur and that give intuitive feedback on how best to solve these problems. Solutions for the maximum crosstalk are often used for this purpose. Limit lines for maximum crosstalk in the frequency domain are available in the literature when signal lines are electrically small and weak coupling is assumed; however, little research has been performed for the case where signal lines are electrically large. This paper provides derivations for maximum crosstalk in the frequency domain when signal lines are electrically large and weak coupling applies. The coupling mechanisms are represented by distributed voltage and current sources. These sources result from aggressor circuit voltages and currents as well as mutual terms in the transmission line per-unit-length parameters. The maximum crosstalk expressions for the victim loads are represented by piecewise expressions dependent on the total electrical length of the aggressor circuit and the electrical length of the coupling region. Measurements and simulations are presented, which show the maximum crosstalk estimates can predict the maximum envelope of crosstalk within a few dB.

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“…Because of their adverse effect on circuit performance, especially in high frequency applications, PCB crosstalk problems have been addressed in the literature. Typical approaches include frequency domain analysis [3,4] and time domain analysis [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

The crosstalk characteristics of different PCB layouts with multiconductor transmission line

Ding

Chou

2004

Int J Numerical Modelling

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SUMMARYA simple method of moment numerical scheme is adopted to study the crosstalk characteristics of printed circuit board. Both strip lines and microstrips PCB configurations are investigated. The results indicate that with the ground plane closer to the signal line, the crosstalk voltages can be reduced. Furthermore, the non-synchronization due to difference in mode velocities can also be reduced.

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Estimating crosstalk in multiconductor transmission lines

Cited by 11 publications

References 4 publications

Analysis of the Radiation from a Complex Multi-Conductor Transmission Line

Analysis of the Radiation from a Complex Multi-Conductor Transmission Line

Maximum Crosstalk Estimation in Weakly Coupled Transmission Lines

The crosstalk characteristics of different PCB layouts with multiconductor transmission line

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