Suppression of Guard-Trace Resonance by Matched Termination for Reducing Common-Mode Radiation
Summary :
We propose a novel technique of matching at both ends of the guard trace to suppress resonance. This approach is derived from the viewpoint that the guard trace acts as a transmission line. We examined that matched termination suppresses guard-trace resonance through simulating a circuit and measuring radiation. We found from these results that the proposed method enables guard-trace voltages to remain low and hence avoids increases in radiation. In addition, we demonstrated that "matched termination at the far end of the guard trace" could suppress guard-trace resonance sufficiently at all frequencies. We eventually found that at least two vias at both ends of the guard trace and only one matching resistor at the far end could suppress guard-trace resonance. With respect to fewer vias, the method we propose has the advantage of reducing restrictions in the printed circuit board layout at the design stage.
- Publication
- IEICE TRANSACTIONS on Communications Vol.E93-B No.7 pp.1746-1753
- Publication Date
- 2010/07/01
- Publicized
- Online ISSN
- 1745-1345
- DOI
- 10.1587/transcom.E93.B.1746
- Type of Manuscript
- Special Section PAPER (Special Section on Advanced Electromagnetic Compatibility Technology in Conjunction with Main Topics of EMC'09/Kyoto)
- Category
- PCB and Circuit Design for EMI Control
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Tetsushi WATANABE, Tohlu MATSUSHIMA, Yoshitaka TOYOTA, Osami WADA, Ryuji KOGA, "Suppression of Guard-Trace Resonance by Matched Termination for Reducing Common-Mode Radiation" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 7, pp. 1746-1753, July 2010, doi: 10.1587/transcom.E93.B.1746.
Abstract: We propose a novel technique of matching at both ends of the guard trace to suppress resonance. This approach is derived from the viewpoint that the guard trace acts as a transmission line. We examined that matched termination suppresses guard-trace resonance through simulating a circuit and measuring radiation. We found from these results that the proposed method enables guard-trace voltages to remain low and hence avoids increases in radiation. In addition, we demonstrated that "matched termination at the far end of the guard trace" could suppress guard-trace resonance sufficiently at all frequencies. We eventually found that at least two vias at both ends of the guard trace and only one matching resistor at the far end could suppress guard-trace resonance. With respect to fewer vias, the method we propose has the advantage of reducing restrictions in the printed circuit board layout at the design stage.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.1746/_p
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@ARTICLE{e93-b_7_1746,
author={Tetsushi WATANABE, Tohlu MATSUSHIMA, Yoshitaka TOYOTA, Osami WADA, Ryuji KOGA, },
journal={IEICE TRANSACTIONS on Communications},
title={Suppression of Guard-Trace Resonance by Matched Termination for Reducing Common-Mode Radiation},
year={2010},
volume={E93-B},
number={7},
pages={1746-1753},
abstract={We propose a novel technique of matching at both ends of the guard trace to suppress resonance. This approach is derived from the viewpoint that the guard trace acts as a transmission line. We examined that matched termination suppresses guard-trace resonance through simulating a circuit and measuring radiation. We found from these results that the proposed method enables guard-trace voltages to remain low and hence avoids increases in radiation. In addition, we demonstrated that "matched termination at the far end of the guard trace" could suppress guard-trace resonance sufficiently at all frequencies. We eventually found that at least two vias at both ends of the guard trace and only one matching resistor at the far end could suppress guard-trace resonance. With respect to fewer vias, the method we propose has the advantage of reducing restrictions in the printed circuit board layout at the design stage.},
keywords={},
doi={10.1587/transcom.E93.B.1746},
ISSN={1745-1345},
month={July},}
Copy
TY - JOUR
TI - Suppression of Guard-Trace Resonance by Matched Termination for Reducing Common-Mode Radiation
T2 - IEICE TRANSACTIONS on Communications
SP - 1746
EP - 1753
AU - Tetsushi WATANABE
AU - Tohlu MATSUSHIMA
AU - Yoshitaka TOYOTA
AU - Osami WADA
AU - Ryuji KOGA
PY - 2010
DO - 10.1587/transcom.E93.B.1746
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 7
JA - IEICE TRANSACTIONS on Communications
Y1 - July 2010
AB - We propose a novel technique of matching at both ends of the guard trace to suppress resonance. This approach is derived from the viewpoint that the guard trace acts as a transmission line. We examined that matched termination suppresses guard-trace resonance through simulating a circuit and measuring radiation. We found from these results that the proposed method enables guard-trace voltages to remain low and hence avoids increases in radiation. In addition, we demonstrated that "matched termination at the far end of the guard trace" could suppress guard-trace resonance sufficiently at all frequencies. We eventually found that at least two vias at both ends of the guard trace and only one matching resistor at the far end could suppress guard-trace resonance. With respect to fewer vias, the method we propose has the advantage of reducing restrictions in the printed circuit board layout at the design stage.
ER -
English
