Signal integrity diagnosis and distributed physical-based transmission line model development for PCIe 5.0 connector

High-speed connector design demands a delicate balance between simulation accuracy and rapid signal-integrity (SI) diagnosis. This thesis introduces a novel design tool based on a distributed physical-based transmission-line (dPBTL) model to overcome the limitations of traditional FEM simulations. By transforming complex 3-D PCIe 5.0 connector structures into cascaded 1-D transmission-line segments, the proposed method enables fast, accurate predictions of electrical performance up to 60 GHz while revealing localized effects such as impedance discontinuities, resonances, and loss mechanisms. Moreover, by segmenting the connector into intrinsic and extrinsic subsections—with and without add-in-card (AIC) or baseboard mating— the approach facilitates targeted SI analysis and time-efficient design modifications. This methodology not only significantly reduces simulation time and computational resources but also provides a robust framework for real-time design pathfinding and optimization in high-speed interconnects.

Name thesis:degree_name

M.S.

Level thesis:degree_level

Thesis

Discipline thesis:degree_discipline

Electrical & Computer Engr

Grantor

University of Illinois Urbana-Champaign

Year dc:date

2025

Author dc:creator

• He, Yulin

Contributors dc:contributor

• Feng, Milton

• Signal Integrity
• Tranmission Line
• Equivalent Circuit
• 5g
• High Speed
• Pcie
• Physical-based Model
• Failure Diagnosis

Statement dc:rights

• Copyright 2025 Yulin He

Language dc:language

en, eng

Handle dc:identifier

https://hdl.handle.net/2142/129319

OAI record oai:identifier

https://www.ideals.illinois.edu/oai-pmh?verb=GetRecord&metadataPrefix=etdms&identifier=oai%3Awww.ideals.illinois.edu%3A2142%2F129319