隨著高速數位訊號日益受到重視，其中連接其輸入與輸出的傳輸通道更是需要詳加研究的議題，藉由電磁模擬軟體我們能夠對傳輸通道進行頻域電磁場的分析，並觀察由頻域轉換後的時域響應；本論文以同軸線的模擬開始逐一討論每項變數對眼圖產生的影響，並且修改轉角處結構以改善頻域與眼圖的響應。本論文另外討論低通濾波器的選擇，以及如何實現能控制訊號轉態時間的濾波器，並透過電磁模擬與電路實做量測，對結構進行改良。

With the increasing importance of high-speed digital signals, the transmission channel need to be studied in detail. With electromagnetic simulation software, we can analyze the channel electromagnetic field in the frequency domain, and observe the time domain response after conversion. This thesis starts with the simulations of coaxial and planar transmission lines to discuss the impact of each variable on the eye diagram, and then modify the corner structure to improve the frequency response and its eye diagram. This thesis also compares the responses of low-pass filters and how to implement a filter that can control the signal transition time, through electromagnetic simulation and measurements.

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