发表机构
University of Oxford; University of Liverpool（牛津大学; 利物浦大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究提出一种MATLAB信号完整性分析框架，将S参数数据转换为链路级证据，在PPCB-1347-MuPix11探针卡四条差分路径上验证，明确路径长度非SI排序变量，为高速互连SI分析提供可扩展基础。
AI 中文摘要
本文提出了一种可复用的MATLAB信号完整性（SI）框架，该框架可将由矢量网络分析仪（VNA）测量或电磁仿真得到的兼容四端口S参数数据转换为可追溯的链路级证据，而非单一的损耗指标。该框架在PPCB-1347-MuPix11探针卡的四条1.25 Gbps差分路径（DP1-DP4）上进行了验证，采用由PTSL CST Microwave 3D求解器生成的四端口S参数及虚拟时域求解器。自动化流程会预校验文件结构，执行功率归一化的混合模式变换，应用路径长度感知的损耗分解，构建因果加载的信道模型，并将完整的PRBS-31序列传播至眼图、条件误码率（BER）及8b10b编码链路分析。在1.25 Gbps数据速率（奈奎斯特频率0.625 GHz）下，DP1-DP4的差分插入损耗（SDD21）为-0.350至-0.300 dB，差分转共模转换为-31.038至-28.236 dBc，建模的前端电子学（FEB）输入眼 openings为0.586至0.588 V。对比显示仅路径长度并非合适的SI排序变量：DP3具有最低的奈奎斯特插入损耗，DP1具有最强的差分转共模隔离度，DP4具有最大的建模眼图。所有分析的BER值均低于报告下限，因此不支持BER排序。通过保留路径相关波形行为、模型预测及有限记录观测之间的区别，该框架为从设计评审到校准VNA测量解释的高速互连SI比较分析提供了可扩展的基础。
英文摘要
A reusable MATLAB signal-integrity (SI) framework is presented that converts compatible four-port S-parameter data, measured by VNA or obtained from electromagnetic simulation, into traceable link-level evidence rather than a single loss metric. Its contribution is the checked, traceable automation of established SI operations while keeping source data, model assumptions, analytical projections, and finite-record observations distinct. The framework is demonstrated on the four 1.25 Gbps differential routes (DP1-DP4) of the PPCB-1347-MuPix11 probe card using PTSL CST Microwave 3D-Solver-derived four-port S-parameters and a virtual time-domain solver. The automated pipeline preflights file structures, performs a power-normalized mixed-mode transformation, applies route-length-aware loss decomposition, constructs a causally loaded channel model, and propagates full PRBS-31 sequences into eye-diagram, conditional-BER, and 8b10b-coded-link analyses. At the 1.25 Gbps data rate (Nyquist 0.625 GHz), DP1-DP4 exhibit differential insertion loss (SDD21) from -0.350 to -0.300 dB, differential-to-common conversion from -31.038 to -28.236 dBc, and modeled FEB-input eye openings from 0.586 to 0.588 V. The comparison shows that path length alone is not an adequate SI ranking variable: DP3 has the lowest Nyquist insertion loss, DP1 the strongest differential-to-common isolation, and DP4 the largest modeled eye. All analytical BER values remain below the reporting floor and therefore do not support a BER ranking. By preserving the distinction between route-dependent waveform behavior, model projections, and finite-record observations, the framework provides an extensible basis for comparative high-speed-interconnect SI analysis from design review through calibrated VNA measurement interpretation.
