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Common-mode noise reduction schemes for weakly coupled differential serpentine delay microstrip lines

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Abstract
This paper proposes design schemes to reduce the common mode noise from weakly coupled differential serpentine delay microstrip lines (DSDMLs). The proposed approach is twofold: we leverage strongly coupled vertical-turn-coupled traces (VTCTs) instead of weakly coupled VTCTs (conventional pattern) and add guard traces. Time- and frequency-domain analyses of the proposed schemes for reducing the common-mode noise are performed by studying the transmission waveform and the differential-to-common mode conversion using the circuit solver HSPICE and the 3-D full-wave simulator HFSS, respectively. Compared to the conventional design of the weakly coupled DSDMLs, the proposed solutions yield a reduction of about 54% of the peak-to-peak amplitude of the common-mode noise, while the differential impedance remains matched along the complete length of the DSDML. Moreover, the range of frequencies, over which the magnitude of the differential-to-common mode conversion is now significantly reduced, is very wide, i.e. about 0.3-10 GHz. Furthermore, the differential insertion and reflection loss introduced by the newly proposed designs are almost the same as the ones achieved by using the conventional design. Finally, a favorable comparison between simulated and measured results confirms the excellent common-mode noise reduction performance of the proposed schemes.
Keywords
WAVE, CIRCUITS, BEND DISCONTINUITIES, Common-mode noise, differential insertion loss, differential reflection loss, differential serpentine delay microstrip line (DSDML), differential-to-common mode conversion, guard trace

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Citation

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MLA
Shiue, Guang-Hwa, et al. “Common-Mode Noise Reduction Schemes for Weakly Coupled Differential Serpentine Delay Microstrip Lines.” IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, vol. 3, no. 6, 2013, pp. 1016–27, doi:10.1109/TCPMT.2013.2254487.
APA
Shiue, G.-H., Kao, Y.-H., Hsu, C.-M., Tsai, Y.-C., & Vande Ginste, D. (2013). Common-mode noise reduction schemes for weakly coupled differential serpentine delay microstrip lines. IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, 3(6), 1016–1027. https://doi.org/10.1109/TCPMT.2013.2254487
Chicago author-date
Shiue, Guang-Hwa, Yu-Han Kao, Che-Ming Hsu, Yi-Chin Tsai, and Dries Vande Ginste. 2013. “Common-Mode Noise Reduction Schemes for Weakly Coupled Differential Serpentine Delay Microstrip Lines.” IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY 3 (6): 1016–27. https://doi.org/10.1109/TCPMT.2013.2254487.
Chicago author-date (all authors)
Shiue, Guang-Hwa, Yu-Han Kao, Che-Ming Hsu, Yi-Chin Tsai, and Dries Vande Ginste. 2013. “Common-Mode Noise Reduction Schemes for Weakly Coupled Differential Serpentine Delay Microstrip Lines.” IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY 3 (6): 1016–1027. doi:10.1109/TCPMT.2013.2254487.
Vancouver
1.
Shiue G-H, Kao Y-H, Hsu C-M, Tsai Y-C, Vande Ginste D. Common-mode noise reduction schemes for weakly coupled differential serpentine delay microstrip lines. IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY. 2013;3(6):1016–27.
IEEE
[1]
G.-H. Shiue, Y.-H. Kao, C.-M. Hsu, Y.-C. Tsai, and D. Vande Ginste, “Common-mode noise reduction schemes for weakly coupled differential serpentine delay microstrip lines,” IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY, vol. 3, no. 6, pp. 1016–1027, 2013.
@article{4422567,
  abstract     = {{This paper proposes design schemes to reduce the common mode noise from weakly coupled differential serpentine delay microstrip lines (DSDMLs). The proposed approach is twofold: we leverage strongly coupled vertical-turn-coupled traces (VTCTs) instead of weakly coupled VTCTs (conventional pattern) and add guard traces. Time- and frequency-domain analyses of the proposed schemes for reducing the common-mode noise are performed by studying the transmission waveform and the differential-to-common mode conversion using the circuit solver HSPICE and the 3-D full-wave simulator HFSS, respectively. Compared to the conventional design of the weakly coupled DSDMLs, the proposed solutions yield a reduction of about 54% of the peak-to-peak amplitude of the common-mode noise, while the differential impedance remains matched along the complete length of the DSDML. Moreover, the range of frequencies, over which the magnitude of the differential-to-common mode conversion is now significantly reduced, is very wide, i.e. about 0.3-10 GHz. Furthermore, the differential insertion and reflection loss introduced by the newly proposed designs are almost the same as the ones achieved by using the conventional design. Finally, a favorable comparison between simulated and measured results confirms the excellent common-mode noise reduction performance of the proposed schemes.}},
  author       = {{Shiue, Guang-Hwa and Kao, Yu-Han and Hsu, Che-Ming and Tsai, Yi-Chin and Vande Ginste, Dries}},
  issn         = {{2156-3950}},
  journal      = {{IEEE TRANSACTIONS ON COMPONENTS PACKAGING AND MANUFACTURING TECHNOLOGY}},
  keywords     = {{WAVE,CIRCUITS,BEND DISCONTINUITIES,Common-mode noise,differential insertion loss,differential reflection loss,differential serpentine delay microstrip line (DSDML),differential-to-common mode conversion,guard trace}},
  language     = {{eng}},
  number       = {{6}},
  pages        = {{1016--1027}},
  title        = {{Common-mode noise reduction schemes for weakly coupled differential serpentine delay microstrip lines}},
  url          = {{http://dx.doi.org/10.1109/TCPMT.2013.2254487}},
  volume       = {{3}},
  year         = {{2013}},
}

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