臺灣博碩士論文加值系統

本論文提出兩個應用在超寬頻低雜訊放大器的電路，利用寬頻濾波器和回授的概念來增加我們電路工作的頻寬，使用共閘極放大器的架構，在電晶體的輸入端設計一個巴特伍斯帶通濾波器，達到寬頻帶，低功率，低雜訊指數的效果，對於高頻的寄生效應也有一定的改善。利用回授電阻可以降低品質因素，拉大工作的頻寬達到寬頻的效果。本電路以台灣積體電路所提供的0.18μm 1P6M RF CMOS製程實現，模擬和量測的結果都符合我們低功率和寬頻的效果。

In this thesis，two low noise amplifiers are applied for Ultra Wideband system．Using wideband filter and feedback topologies increase our circuit bandwidth．Design a butterworth filter in front of the transistor in order to obtain wideband，low power consumption，low noise figure effects．It also gives improvement in high frequency parasitic effect．The circuit is implemented by TSMC 0.18μm RF CMOS process．The simulation and measurement results fit our standard．

中文摘要 i
英文摘要 ii
致謝 iii
目錄 iv
表目錄 vi
圖目錄 vii
第一章 緒 論…… 1
1.1 研究動機…………………………………………………. 1
1.2 超寬頻低雜訊放大器設計方法…………………………. 2
1.2.1 寬頻濾波器應用在源極衰減低雜訊放大器……………2
1.2.2 主動式輸入阻抗匹配應用在低雜訊放大器……………2
1.2.3 回授技巧應用在低雜訊放大器………………………3
1.3 超寬頻系統的介紹 ………………………………………3
1.4 論文組織……………………………………………………5
第二章 3-5GHz 超寬頻系統低雜訊放大器的設計……………11
2.1 概要 ……………………………………………………11
2.2 場效電晶體的雜訊源………………………………………11
2.3 低雜訊放大器基本設計方法 ……………………………12
2.4 電路設計 ………………………………………………16
2.5 互補金屬氧化半導體製程……………………………17
2.6 模擬結果………………………………………………18
2.7 佈局考量………………………………………………19
2.8 測量考量………………………………………………19
2.9 測量結果………………………………………………20
2.10 模擬修正……………………………………………20
第三章 應用3-10GHz 共閘極超寬頻低雜訊放大器 ……42
3.1 概要………………………………………………….42
3.2 電路設計 ……………………………………………42
3.3 佈局考量 ……………………………………………45
3.4 測量考量 ……………………………………………45
3.5 模擬結果 ……………………………………………46
3.6 測量結果…………………………………………….47
3.7 模擬修正…………………………………………….47
第四章 結論…………………………………………….64
附錄A……………………………………………………65
參考文獻…………………………………………………67
簡歷………………………………………………………69

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