Analysis on Unintentional Resonances in High-Speed Signals from Non-Ideal Routing Stub

Abstract

As more components are integrated into a denser area in electronic devices, the complexity of routing increases. A routing design resulting from routing tools may pass all design rule checks, but it can also result in signal integrity problems, which affect the performance of the entire link path, often not realized until the layout stage. In this paper, such designs are analyzed for their unintentional resonances in the insertion loss and the crosstalk of the signals. As an example, an unintentional power plane stub created by trace routing revisions adjacent to the signal trace behaves as a quarter-wavelength resonant structure. To avoid such unintentional resonances in high-speed signals, trace routing should be carefully designed and design rule checks must be improved to detect and warn the users of such potential signal integrity hazards.

Meeting Name

2021 IEEE International Joint Electromagnetic Compatibility Signal and Power Integrity and EMC Europe Symposium, EMC/SI/PI/EMC Europe 2021 (2021: Jul. 26-Aug. 13, Raleigh, NC)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Comments

National Science Foundation, Grant IIP-1916535

Keywords and Phrases

Auto Routing; Crosstalk; Power Plane Design; Printed Circuit Board; Quarter-Wavelength Resonator; S-Parameter

International Standard Book Number (ISBN)

978-166544888-8

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2021 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

13 Aug 2021

Link to Full Text

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