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<p>As an important characteristic of a signal transmission network, scattering parameters can accurately reflect the signal transmission situation. By establishing a circuit model based on scattering parameters for the signal path unit, studying the signal attenuation and reflection curves of components including transmission lines, transmission media, vias, high-speed connectors, and transceiver termination devices, a circuit simulation model completely based on scattering parameters is proposed. This model can be parametrically adjusted according to the requirements of actual circuit implementation, and accurately reflect the high-speed signal transmission quality of the final circuit. This circuit simulation model is applied to the high-speed 5G small base station system. The transceiver performance of the modular circuit model completely based on scattering parameters and the scattering parameter model extracted based on board-level implementation is compared. The results show that the modular circuit completely based on scattering parameters can accurately match the channel communication indicators of board-level implementation.</p>

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Signal integrity research of high-speed interconnection systems based on scattering parameters

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年7月2日

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  • Cheng Hong,
  • Zhiqiang Li,
  • Wu Guan,
  • Liping Liang

摘要

As an important characteristic of a signal transmission network, scattering parameters can accurately reflect the signal transmission situation. By establishing a circuit model based on scattering parameters for the signal path unit, studying the signal attenuation and reflection curves of components including transmission lines, transmission media, vias, high-speed connectors, and transceiver termination devices, a circuit simulation model completely based on scattering parameters is proposed. This model can be parametrically adjusted according to the requirements of actual circuit implementation, and accurately reflect the high-speed signal transmission quality of the final circuit. This circuit simulation model is applied to the high-speed 5G small base station system. The transceiver performance of the modular circuit model completely based on scattering parameters and the scattering parameter model extracted based on board-level implementation is compared. The results show that the modular circuit completely based on scattering parameters can accurately match the channel communication indicators of board-level implementation.