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Compensating mode conversion due to bend discontinuities through intentional trace asymmetry

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Abstract
In this letter, a comparative analysis is carried out between the mechanism of mode conversion in differential microstrip lines due to bend discontinuities on one side and trace asymmetry on the other side. With the help of equivalent modal circuits, a theoretical basis is provided for the idea to compensate the undesired common mode (CM), due to the presence of the bend, by intentionally designing asymmetric traces. As an application example, the proposed CM-reduction strategy is used in conjunction with another recently-presented wideband CM suppression filter for differential microstrip lines. It is shown that the proposed solution enhances the overall CM-reduction performance of the filter by some decibels, while preserving its transmission properties.
Keywords
Bend discontinuities, common and differential modes, differential, interconnects, mixed-mode S-parameters, mode conversion

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Citation

Please use this url to cite or link to this publication:

MLA
Wu, Xinglong, et al. “Compensating Mode Conversion Due to Bend Discontinuities through Intentional Trace Asymmetry.” IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, vol. 62, no. 2, 2020, pp. 617–21.
APA
Wu, X., Grassi, F., Manfredi, P., Vande Ginste, D., & Pignari, S. A. (2020). Compensating mode conversion due to bend discontinuities through intentional trace asymmetry. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, 62(2), 617–621.
Chicago author-date
Wu, Xinglong, Flavia Grassi, Paolo Manfredi, Dries Vande Ginste, and Sergio A. Pignari. 2020. “Compensating Mode Conversion Due to Bend Discontinuities through Intentional Trace Asymmetry.” IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY 62 (2): 617–21.
Chicago author-date (all authors)
Wu, Xinglong, Flavia Grassi, Paolo Manfredi, Dries Vande Ginste, and Sergio A. Pignari. 2020. “Compensating Mode Conversion Due to Bend Discontinuities through Intentional Trace Asymmetry.” IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY 62 (2): 617–621.
Vancouver
1.
Wu X, Grassi F, Manfredi P, Vande Ginste D, Pignari SA. Compensating mode conversion due to bend discontinuities through intentional trace asymmetry. IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY. 2020;62(2):617–21.
IEEE
[1]
X. Wu, F. Grassi, P. Manfredi, D. Vande Ginste, and S. A. Pignari, “Compensating mode conversion due to bend discontinuities through intentional trace asymmetry,” IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY, vol. 62, no. 2, pp. 617–621, 2020.
@article{8662003,
  abstract     = {In this letter, a comparative analysis is carried out between the mechanism of mode conversion in differential microstrip lines due to bend discontinuities on one side and trace asymmetry on the other side. With the help of equivalent modal circuits, a theoretical basis is provided for the idea to compensate the undesired common mode (CM), due to the presence of the bend, by intentionally designing asymmetric traces. As an application example, the proposed CM-reduction strategy is used in conjunction with another recently-presented wideband CM suppression filter for differential microstrip lines. It is shown that the proposed solution enhances the overall CM-reduction performance of the filter by some decibels, while preserving its transmission properties.},
  author       = {Wu, Xinglong and Grassi, Flavia and Manfredi, Paolo and Vande Ginste, Dries and Pignari, Sergio A.},
  issn         = {0018-9375},
  journal      = {IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY},
  keywords     = {Bend discontinuities,common and differential modes,differential,interconnects,mixed-mode S-parameters,mode conversion},
  language     = {eng},
  number       = {2},
  pages        = {617--621},
  title        = {Compensating mode conversion due to bend discontinuities through intentional trace asymmetry},
  url          = {http://dx.doi.org/10.1109/TEMC.2019.2904178},
  volume       = {62},
  year         = {2020},
}

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