Approximation of Worst Case Crosstalk at High Frequencies

Dong, Xiaopeng; Weng, Haixiao; Beetner, Daryl G.; Hubing, T.H.

doi:10.1109/temc.2010.2081676

Cited by 14 publications

(35 citation statements)

References 18 publications

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“…Although exact formulations for crosstalk are beneficial, the most useful tool for many designers is the maximum, worst case crosstalk over frequency [22]- [24]. Designers are often interested in a worst case performance limit because passing this limit obviates the need for further design analysis and modifications.…”

Section: Introductionmentioning

confidence: 99%

“…This is not to say that there are no exact formulations when transmission lines are electrically large as there is an ample supply of literature devoted to this subject [3], [6], [8], [9]; rather, little information is available in literature to estimate the maximum crosstalk. An effort was made in [24] to predict maximum crosstalk at "high frequencies", where the signal lines were electrically large and weak coupling was assumed. Although the results in [24] were shown to predict the crosstalk well, the maximum crosstalk formulations lacked the inclusion of transmission line loss and mathematical rigor.…”

Section: Introductionmentioning

confidence: 99%

“…An effort was made in [24] to predict maximum crosstalk at "high frequencies", where the signal lines were electrically large and weak coupling was assumed. Although the results in [24] were shown to predict the crosstalk well, the maximum crosstalk formulations lacked the inclusion of transmission line loss and mathematical rigor. One critical assumption in [24] was that the coupling mechanisms could be represented by a single, lumped source based on infinite transmission line voltages or currents.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Maximum Crosstalk Estimation in Weakly Coupled Transmission Lines

Halligan

Beetner

2014

IEEE Trans. Electromagn. Compat.

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“…This method needs large repeated computations and the results are only suitable for the case studied. Many researches proposed the worst-case methods for transmission lines in some specific cases, such as weak coupling and strong coupling [8][9][10][11]. The worst-case methods can provide quick estimations for designs; however, the results may differ greatly from the actual values.…”

Section: Introductionmentioning

confidence: 99%

Influence Analysis of Stochastic Translation of Transmission Lines Over Ground

Xie¹,

Wang²,

Li³

et al. 2014

PIER Letters

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Abstract-This paper proposes a method for the quick estimation of the average voltages at terminal loads when the transmission line translate randomly and analyzes the sensitivities of the loads' voltages to the translation. Because nonuniform transmission lines can be approximated as n-cascaded uniform lines, the study of uniform lines is the basis. Based on the transmission-line equations, the equations are derived to estimate the average voltages, the voltage variations, and the sensitivity of the voltage to the random translation when transmission lines have random translation in their cross sections. With these equations, the average voltages at the loads, the probability distributions of the voltage variations, and the sensitivity of the voltage to the random translation can be obtained quickly. A two-wire line over the ground is studied by using the proposed method. The average voltages and the voltage variations' probability distributions agree well with those via the Monte Carlo (MC) method and the proposed method is more efficient. The results show that the sensitivities of the voltages at the loads to the random height increase with the terminal sources but decrease with the height.

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“…The product design cycle has to be much longer and much more challenging. Therefore, the demand of computer-aided appropriate EMC design [1] increases tremendously as the EMC prediction based on qualitative and quantitative assessments of the reasonably foreseeable worst case EMI [2] is critical now in the design before physical production. The circumstances are similar to that those mechanical and electronic computer-aided design (CAD) tools confronted with about 20 years ago.…”

Section: Introductionmentioning

confidence: 99%

Radiated Electromagnetic Immunity Analysis of Flex Cable with Ground Plane Using Transmission Line Equations

Gao

Zhao

et al. 2013

IEEE Trans. Electromagn. Compat.

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This paper presents the analysis of radiated immunity of flex cable with ground plane using transmission line equations. The conformal mapping transformation technique and the integral equations are employed to extract the equivalent RLCG parameters for canonical types and complicated types of structures, respectively. The external electromagnetic field sources are modeled as equivalent voltage and current sources in the transmission line equations. After the equivalent circuit is obtained, the induced voltage is computed via the SPICE solver. Validation with case studies shows that the approach is capable of efficiently modeling the radiated electromagnetic interference to evaluate the immunity level of devices under test.

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Approximation of Worst Case Crosstalk at High Frequencies

Cited by 14 publications

References 18 publications

Maximum Crosstalk Estimation in Weakly Coupled Transmission Lines

Maximum Crosstalk Estimation in Weakly Coupled Transmission Lines

Influence Analysis of Stochastic Translation of Transmission Lines Over Ground

Radiated Electromagnetic Immunity Analysis of Flex Cable with Ground Plane Using Transmission Line Equations

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