Differential S-Parameter De-Embedding for 8-Port Network

Abstract

Compared to 4-port de-embedding, 8-port de-embedding is much more challenging due to the presence of crosstalk terms in both the differential mode and the common mode. Using the 2nd order mixed-mode concept, this work proposes an 8-port smart fixture de-embedding (SFD) method. The proposed method neglects modal conversion terms by requiring balanced and symmetrical designs. Analysis showed that this approximation generally has negligible impact on the de-embedded differential results with careful test fixture design.

Meeting Name

2018 IEEE Symposium on Electromagnetic Compatibility, Signal Integrity and Power Integrity, EMC, SI and PI 2018 (2018: Jul. 30-Aug. 3, Long Beach, CA)

Department(s)

Electrical and Computer Engineering

Comments

This material is based upon work supported partially by the National Science Foundation under Grant No. IIP-1440110. The authors would like to acknowledge Dr. Se-Jung Moon for providing the S parameters of the PCB test fixture for the study. The authors would like to thank Mr. Nicholas Erickson for his careful review of the manuscript.

Keywords and Phrases

Busbars; Crosstalk; Electromagnetic compatibility; Fixtures (tooling); 2X-Thru; De-embedding; FEXT; Mixed mode; NEXT; Test fixture; Scattering parameters; 1st order mixed- mode; 2nd order mixed-mode; 8-port network; SFD

International Standard Book Number (ISBN)

978-1-5386-6621-0

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2018 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jul 2018

Link to Full Text

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