The Design of a Low Noise Amplifier for Blue Tooth Receiver Design 白欣松、陳勛祥 ; 許崇宜
E-mail: [email protected]
ABSTRACT
A 1.8V LNA (low noise amplifier) is designed for RF (radio frequency) system using TSMC 0.18μm process in this thesis. The operating frequency of the low noise amplifier is located at Blue Tooth (2.4GHz). The LNA has a single cascade structure with on-chip spiral inductors to save die area and integrated all devices in an IC. The simulation results emphasis on input/output impedance matching、isolation、power gain、linear、and power dissipation. From tuning parameters of each device, we can get the optimal value in this LNA circuit. The performance of LNA from simulation results were : noise figure 2.894dB, power gain 14.571 dB, power dissipation 4.65 mW, 1-dB compression -24 dBm.
Keywords : LNA ; spiral inductors ; RF
Table of Contents
封面內頁 簽名頁 授權書．．．．．．．．．．．．．．．．．．．．．．．．．iii 中文摘要．．．．．．．．．．．．
．．．．．．．．．．．．iv 英文摘要．．．．．．．．．．．．．．．．．．．．．．．．v 誌謝．．．．．．．．．
．．．．．．．．．．．．．．．．．vi 目錄．．．．．．．．．．．．．．．．．．．．．．．．．．vii 圖目錄．．．
．．．．．．．．．．．．．．．．．．．．．．x 表目錄．．．．．．．．．．．．．．．．．．．．．．．．．xii 第 一章 序論 1.1藍芽簡介．．．．．．．．．．．．．．．．．．．1 1.2相關研究發展現況．．．．．．．．．．．．．
．．4 第二章 通訊系統架構 2.1接收機系統簡介．．．．．．．．．．．．．．．．6 2.2超外差式接收機．．．．．．．
．．．．．．．．．8 2.3直接降頻接收機．．．．．．．．．．．．．．．．9 第三章 低雜訊放大器的設計考量 3.1 簡 介．．．．．．．．．．．．．．．．．．．．13 3.2 MOS積體電路內在雜訊．．．．．．．．．．．13 3.2.1通道熱雜 訊．．．．．．．．．．．．．．13 3.2.2閘極電阻雜訊．．．．．．．．．．．．．15 3.2.3閃爍雜訊．．．．．．．．
．．．．．．．16 3.3 雜訊指數．．．．．．．．．．．．．．．．．．17 3.4 線性度考量．．．．．．．．．．．．．
．．．．20 3.4.1 1-dB增益壓縮點．．．．．．．．．．．．21 3.4.2 三階交互調變點．．．．．．．．．．．．23 3.5增 益．．．．．．．．．．．．．．．．．．．．27 第四章 低雜訊放大器的架構 4.1簡介．．．．．．．．．．．．．．
．．．．．．29 4.2低雜訊放大器的電路架構．．．．．．．．．．．30 4.3輸入阻抗匹配網路．．．．．．．．．．．．
．．32 4.3.1 電阻匹配電路．．．．．．．．．．．．．．32 4.3.2 共閘級匹配電路．．．．．．．．．．．．．34 4.3.3 並串回授匹配電路．．．．．．．．．．．．35 4.3.4 電感衰減匹配電路．．．．．．．．．．．．36 4.4串疊結構．．．
．．．．．．．．．．．．．．．39 4.5 螺旋式電感與MIM電容．．．．．．．．．．．40 第五章 模擬結果與佈局圖 5.1 序言．．．．．．．．．．．．．．．．．．．．44 5.2阻抗匹配模擬．．．．．．．．．．．．．．．．45 5.3反向隔絕 度模擬．．．．．．．．．．．．．．．47 5.4功率增益模擬．．．．．．．．．．．．．．．．48 5.5雜訊指數的模擬．
．．．．．．．．．．．．．．49 5.6線性度的模擬．．．．．．．．．．．．．．．．50 5.6.1 1-dB增益壓縮點模擬．．
．．．．．．．50 5.6.2 三階交互調變點模擬．．．．．．．．．．51 5.7 溫度變異模擬．．．．．．．．．．．．．．
．52 5.8 供應電壓變異模擬．．．．．．．．．．．．．53 5.9 製程變異模擬．．．．．．．．．．．．．．．54 5.10 穩 定度模擬．．．．．．．．．．．．．．．．55 5.11佈局平面圖．．．．．．．．．．．．．．．．．56 5.12量測考量．
．．．．．．．．．．．．．．．．．57 第六章 結論．．．．．．．．．．．．．．．．．．．．．．58 參考文獻．
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