2017-08-012024-05-18https://scholars.lib.ntu.edu.tw/handle/123456789/712696摘要：由於電子產品的日趨複雜，晶片間傳遞的資料量不斷提高，高速差動的傳輸介面已成為高效能系統內的必要架構。高速的單對序列式差動訊號傳輸，雖被證明較多根單端訊號具備更佳的傳輸效能，但為了更高的資料率，將多重差動傳輸線並排傳輸，已經成為次世代高速數位傳輸的趨勢。 然而，多對平行差動傳輸線間存在著串音干擾，使得原差模信號耦合至另一差動傳輸線後，會同時轉變成差模與共模，其中轉成共模的過程稱為模態轉換。共模雜訊易誘發之電磁輻射，使得系統中的射頻電路受到嚴重干擾。如何評估多重差動傳輸線對於電磁輻射的影響，以及提出相應的解決方案，成為次世代高速數位傳輸介面的重要目標。 在第一年的計畫中，將針對多重差動傳輸線，進行串音干擾與模態轉換的分析，並了解差模與共模對後端不同種纜線輻射的貢獻差異，進而建立簡化模型，加速電磁干擾分析。在第二年的計畫中，將提出新穎的共模雜訊吸收電路，達到讓共模雜訊同時有抗反射與抗穿透的效果。在最後一年的計畫，將設計纜線電流抑制器，並使其操作頻率設計在十億赫茲層級，以應用於次世代高速數位系統中纜線的輻射抑制。<br> Abstract: As the complexity of the electronic devices keeps increasing, the amount of data transmission between different chips has also become greatly enhanced. The interface of high-speed differential transmission is now indispensable in most high performance systems. Although single differential pair has been proven to have better transmission performance than multiple single-ended lines, interface with multiple parallel differential pairs is more preferable for higher data rate of next generation high-speed digital transmission. However, multiple differential pairs induce crosstalk and convert differential signal on one pair to differential- and common-mode noise on the other pair, which is called mode-conversion. Common-mode is easier to cause electromagnetic radiation, interfering with nearby radio-frequency circuitry. Therefore, evaluating influence of multiple differential pairs on electromagnetic radiation and proposing corresponding solution strategies are the main goals for next generation digital transmission. In the first-year project, crosstalk and mode-conversion of multiple differential pairs will be analyzed, and influence of differential- and common-mode on radiation for different kinds of cable will be studied as well. In the second year, a brand-new concept of common-mode noise absorption circuit will be proposed to offer the performance without reflection and transmission of common-mode noise. Finally, cable current suppressor will be designed at giga-hertz range for mitigating electromagnetic radiation of cable in next generation high-speed digital system.電磁干擾電磁相容electromagnetic Interferenceelectromagnetic compatibility