臺灣博碩士論文加值系統

現今通用序列匯流排(universal serial bus, USB)產品已是高速率及低價格的需求導向。在為了不改變原有功能及規格上，及在USB標準中所規範之兩種標準傳輸線規格外，找出第三種經濟且符合效益之規格。此規格能夠接近標準傳輸線EMI的表現、降低生產成本及減少材料之使用量，並增加使用者主觀的使用感。本論文透過軟體模擬、實驗及實際產品量測的頻率響應，以證明第三種規格可行性。

USB products already have been required of high speed and low price now. In order to unchange the original function and specification, except two kinds of standards transmitted cable. To develop the third kind specification according with the economy and benefit in USB standard is proposed in this study. The cable performance can be approached and met the transmission line electromagnetic interference (EMI) standard, to reduce the production cost and the material consumption, and increasing user's subjective sense of application. To verify the validate and performance through the software simulation and real product’s frequency spectrum measurement, to prove the specification feasibility of the proposed modified cable are presented in this thesis.

中文摘要………………….…………………………………...…………………………i
英文摘要…..…………………………………………………………………………… ii
誌謝……………………………………………………………………………………..iii
目錄……………………………………………………………………………………..iv
表目錄…………………………………………………………………………………..vi
圖目錄………………………………………………………………………………….vii
第一章 序論…………………………………………………………………………….1
1.1 前言……………………………………………………………………………..1
1.2 研究動機………………………………………………………………………..1
1.3 USB的介紹 …………………………………………………………………..2
1.4 電磁相容的介紹………………………………………………………………..7
1.5 論文架構………………………………………………………………………..8
第二章　傳輸線的組成改進…………………………………………………………...9
2.1 前言……………………………………………………………………………..9
2.2 USB傳輸線的規格……………………………………………………….….....9
2.3 三種規格優劣分析……………………………………………………………14
2.4 本章結論………………………………………………………………………15
第三章　軟體模擬…………………………………………………………………….16
3.1 前言……………………………………...…………………………………….16
3.2 FDTD介紹…………………………… ..……………………………………..16
3.3 輸入參數及饋入點設定………………………………...…………………….21
3.4 網格模型………………………………...…………………………………….24
3.5 模擬結果…………………… …………...……………………………………25
3.6 本章結論………………………………………………………………………27
第四章　實驗與電路傳輸模擬……………………………………………………….28
4.1　前言……………………………………………………………………………28
4.2　實驗架構………………………………………………………………………28
4.3　實驗結果及討論………………………………………………………………30
4.4 PSpice模型…………………………………………………………………….31
4.5 傳輸模擬結果…………………………………………………………………33
4.6 本章結論………………………………………………………………………33
第五章 產品實測及分析…………………………………………………………….34
5.1 前言……………………………………………………………………………34
5.2 EMC實測步驟………………………………………………………………...34
5.3 EMC實測結果………………………………………………………………...38
5.4 眼圖簡介………………………………………………………………………42
5.5 眼圖測試步驟…………………………………………………………………43
5.6 眼圖測試結果…………………………………………………………………44
5.7 本章結論………………………………………………………………………48
第六章 結論與未來研究……………………………………………………………...49
6.1 結論……………………………………………………………………………49
6.2 未來研究………………………………………………………………………49
參考文獻……………………………………………………………………………….50
附錄一………………………………………………………………………………….53
附錄二………………………………………………………………………………….59
附錄三………………………………………………………………………………….61
附錄四………………………………………………………………………………….63

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