Title: 射頻前端接收器設計
RF Front-end Receiver Design
Authors: 蔡順意
Tsai Shun-I
Robert Hu
Keywords: 低雜訊放大器;互補性氧化金屬半導體;全球定位系統;數位用戶端迴路;正交頻分複用技術;無線機地台;高電子移動率電晶體;雜訊與輸入阻抗同時匹配技術;有功率限制之雜訊與輸入阻抗同時匹配技術;混波器;LNA;CMOS;GPS;xDSL;OFDM;Access Point;HEMT;SNIMT;PCSNIMT;Mixer;Gilbert Cell
Issue Date: 2007
Abstract: 本篇論文提出一個 4GHz 到 20GHz 的低雜訊寬頻放大器,和一種新穎被動式混波器。低雜訊寬頻放大器是運用4顆電晶體,接成共源極的架構;利用輸入閘極電感和並聯回授電容,來完成輸入阻抗匹配。整體放大器在工作頻率範圍,功率增益可達22 dB,輸入反射係數低於 -10dB。最後在臺灣基體電路公司下線,使用0.18 微米互補性氧化金屬半導體製程。被動式混波器是一種全新的架構,從未被發表在國際期刊。這個架構沒有直流功率消耗,沒有1 dB 功率抑制點;在沒有慮波器的情形下,輸出中頻的載波和射頻訊號可被有效消除。
This thesis presents a 4GHz to 20GHz low noise amplifier, and a novel architecture of mixer. Low noise amplifier utilizes four MOS transistors which are designed as common-mode source architecture, and apply gate inductor and parallel-feedback capacitor to achieve wide-band input impedance matching. Power gain can be up to 22dB and input reflection coefficient can be lower than -10dB on intended frequency range, and is fabricated in TSMC 0.18μm CMOS technology. The passive mixer is a novel architecture, and is never published on worldwide international papers. This architecture doesn’t consume any DC power and no 1-dB compression issue. Besides, at IF output terminal, LO and RF signals can be effectively eliminated without any filters.
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  1. 165001.pdf