Effects of Mechanical Tolerances of USB 2.0 Cables on Skew and Radiated Emission

Izadi, Omid Hoseini; Hosseinbeig, Ahmad; Li, Guanghua; Pommerenke, David

doi:10.1109/temc.2018.2881970

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…incorporated the uncertainty associated with the drain wire as part of mechanical tolerance. Using the design of the experiments technique, they analyzed the impact of drain wire diameter on skew and RE [6]. Jo et al.…”

Section: Introductionmentioning

confidence: 99%

“…multiconductor wiring harness bundles intertwining data and power cables), cable engineers face a considerable challenge in aligning RE within the constraints set by electromagnetic compatibility (EMC) standards. This challenge is exacerbated by uncontrolled uncertainties, such as random twisting and wire-to-wire contacts, which can be inevitably introduced during the mass-production of cables [6,7].…”

mentioning

confidence: 99%

“…In this context, Izadi et al incorporated the uncertainty associated with the drain wire as part of mechanical tolerance. Using the design of the experiments technique, they analyzed the impact of drain wire diameter on skew and RE [6]. Jo et al investigated the protective effectiveness of drain wires in indirect lightning disturbances, noting that copper wire outperformed aluminium wire due to higher conductivity [14].…”

mentioning

confidence: 99%

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Regulate drain‐shield relative positioning and contact for mitigating radiated emission from USB cables

Liang,

Yin,

Song

et al. 2024

Electronics Letters

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This letter delves into the influence of drain wire design on electromagnetic radiated emission (RE) from a commercial universal serial bus (USB) cable operating in a high‐speed data transfer mode. The investigation involves an experimental comparison of measured RE across various retrofitted cables. Notably, it is demonstrated that the distribution of contact points on the drain‐shield has negligible effects on RE. Conversely, relocating the drain wire externally to the shields and minimizing the distance with respect to the grounding connector leads to a significant reduction in RE, particularly within the sub‐MHz frequency range. Consequently, regulatory proposals are put forth to diminish overall RE and enhance the RE compliance of USB cables.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Regulate drain‐shield relative positioning and contact for mitigating radiated emission from USB cables

Liang,

Yin,

Song

et al. 2024

Electronics Letters

View full text Add to dashboard Cite

show abstract

“…The above problems are unavoidable and cause mode conversion—the signal changes from differential mode to common mode. In addition, the common-mode signal is also called “common mode noise” because the return path of the common-mode signal contains the discontinuous part of the impedance of the connector end, or the outer conductor of the cable, which will generate radiation and affect the nearby antenna or radio frequency components [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

Design Compact Absorptive Common-Mode Noise Suppression Filter with Series Unified Circuit

Zhuang

Lin

2023

Sensors

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In the PCB process, overcoming common-mode noise radiation is critical. In past years, most studies have focused on a common-mode noise filter (CMNF) that can solve electromagnetic interference in high-speed digital systems by blocking and absorbing common-mode noise radiation. Unfortunately, connecting with any reflective common-mode noise filter (R-CMNF) and reducing the area of an absorptive common-mode noise filter (A-CMNF) are the most troublesome tasks in the PCB process. A novel equivalent circuit is proposed in this research to minimize the complexity of the design and improve accuracy. Detailed analyses of this proposed approach are entirely depicted in this article. The experiment result shows that 9% of fractional bandwidth centered at 2.25 Hz can achieve at least 90% absorption efficiency. With our proposed method, the area of A-CMNF is smaller than in state-of-the-art research.

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Effects of Mechanical Tolerances of USB 2.0 Cables on Skew and Radiated Emission

Cited by 2 publications

References 11 publications

Regulate drain‐shield relative positioning and contact for mitigating radiated emission from USB cables

Regulate drain‐shield relative positioning and contact for mitigating radiated emission from USB cables

Design Compact Absorptive Common-Mode Noise Suppression Filter with Series Unified Circuit

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