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Crosstalk Suppression by Introducing Periodic Structure into Differential Transmission Lines
Hiroaki TAKEDA Kengo IOKIBE Yoshitaka TOYOTA
B - Abstracts of IEICE TRANSACTIONS on Communications (Japanese Edition)
Publication Date: 2018/03/01
Online ISSN: 1881-0209
Type of Manuscript: Special Section PAPER (Special Section on EMC Technology to Support E-systems (Electric, Electronic, Electromagnetic and Information System))
crosstalk, signal integrity, periodic structure, reflection, effective characteristic impedance,
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Dense differential-transmission-line pairs deteriorate signal integrity due to crosstalk with the adjacent differential pair. This paper describes achievement of crosstalk reduction for signal-integrity improvement by introducing a periodic structure into both outsides of a differential pair. As a result, a set of differential-transmission-line pairs with the rectangular periodic structure had the almost same transmission characteristics as the conventional ones below upper limit frequency and had little crosstalk even if the distance between the adjacent differential pairs gets narrow. Also, the wiring density was improved by around 20% under the structural parameters examined in this paper.