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

  • Bichen Chen
  • , Jiayi He
  • , Xinglin Sun
  • , Yuandong Guo
  • , Shuai Jin
  • , Xiaoning Ye
  • , Jun Fan

Research output: Contribution to journal › Article › peer-review

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 2 nd 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.

Keywords

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

Disciplines

  • Electrical and Computer Engineering

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