TY - GEN
T1 - Suppression of mode conversion by decreasing path difference by using an asymmetrically tapered bend in differential transmission lines
AU - Kan, Shohei
AU - Toyota, Yoshitaka
AU - Iokibe, Kengo
AU - Watanabe, Tetsushi
N1 - Publisher Copyright:
© 2014 The Institute of Electronics, Information and Communication Engineer.
PY - 2014/12/23
Y1 - 2014/12/23
N2 - A tightly coupled asymmetrically tapered bend to suppress differential-to-common-mode conversion (caused by bend discontinuity in a pair of differential transmission lines) is proposed. A tightly coupled tapered bend has been proposed to suppress the mode conversion by decreasing the path difference in the bend. The tightly coupled bend with symmetric tapers makes the path difference shorter so that the differential transmission lines are coupled more tightly, but a path difference of twice the line separation still remains. To decrease the remaining path difference, a pair of asymmetric tapers is proposed. A full-wave simulation demonstrated that the amount of differential-to-common-mode conversion was decreased by 29 dB compared to that of the symmetrically tapered bend. To suppress differential-mode reflection, furthermore, a tightly coupled bend with sectionally divided asymmetric tapers is suggested.
AB - A tightly coupled asymmetrically tapered bend to suppress differential-to-common-mode conversion (caused by bend discontinuity in a pair of differential transmission lines) is proposed. A tightly coupled tapered bend has been proposed to suppress the mode conversion by decreasing the path difference in the bend. The tightly coupled bend with symmetric tapers makes the path difference shorter so that the differential transmission lines are coupled more tightly, but a path difference of twice the line separation still remains. To decrease the remaining path difference, a pair of asymmetric tapers is proposed. A full-wave simulation demonstrated that the amount of differential-to-common-mode conversion was decreased by 29 dB compared to that of the symmetrically tapered bend. To suppress differential-mode reflection, furthermore, a tightly coupled bend with sectionally divided asymmetric tapers is suggested.
KW - asymmetric tapers
KW - differential transmission lines
KW - mode conversion
KW - tightly coupled bend
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M3 - Conference contribution
AN - SCOPUS:84936073374
T3 - IEEE International Symposium on Electromagnetic Compatibility
SP - 129
EP - 132
BT - EMC 2014/Tokyo - 2014 International Symposium on Electromagnetic CompatibiIity, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 International Symposium on Electromagnetic CompatibiIity, EMC 2014
Y2 - 12 May 2014 through 16 May 2014
ER -