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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2026
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2605.08570 |
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| _version_ | 1866914581236940800 |
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| author | Nozadze, David Kiguradze, Zurab Penugonda, Srinath Mamun, Sayed Ashraf Koul, Amendra Sapozhnikov, Mike |
| author_facet | Nozadze, David Kiguradze, Zurab Penugonda, Srinath Mamun, Sayed Ashraf Koul, Amendra Sapozhnikov, Mike |
| contents | As data rates scale, intra-pair skew has become a critical bottleneck for high-speed differential signaling. Current analytical models are often limited, while 3D electromagnetic simulations are computationally intensive. This paper presents a comprehensive analytical framework for intra-pair skew in generic asymmetric coupled transmission lines, explicitly integrating skew into S-parameter formulations. We introduce the Intra-pair Skew Propagation Graph (ISPG), a novel graph-based methodology for calculating cumulative skew in complex, cascaded channels. The proposed framework is validated against both S-parameter simulations and empirical measurements of a 2m bulk twinax cable assembly, demonstrating excellent accuracy and robustness for high-speed interconnect design. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_08570 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Intra-Pair Skew Propagation Graph (ISPG): An Analytical Model for Cascaded Channels Nozadze, David Kiguradze, Zurab Penugonda, Srinath Mamun, Sayed Ashraf Koul, Amendra Sapozhnikov, Mike Signal Processing As data rates scale, intra-pair skew has become a critical bottleneck for high-speed differential signaling. Current analytical models are often limited, while 3D electromagnetic simulations are computationally intensive. This paper presents a comprehensive analytical framework for intra-pair skew in generic asymmetric coupled transmission lines, explicitly integrating skew into S-parameter formulations. We introduce the Intra-pair Skew Propagation Graph (ISPG), a novel graph-based methodology for calculating cumulative skew in complex, cascaded channels. The proposed framework is validated against both S-parameter simulations and empirical measurements of a 2m bulk twinax cable assembly, demonstrating excellent accuracy and robustness for high-speed interconnect design. |
| title | Intra-Pair Skew Propagation Graph (ISPG): An Analytical Model for Cascaded Channels |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2605.08570 |