本論文使用TSMC 90-nm CMOS製程，設計並實作一個應用於非侵入式血糖偵測之28-30 GHz接收器前端電路。此前端電路由低雜訊放大器以及混頻器組成。低雜訊放大器在頻率為29 GHz的功率增益為19.43 dB，且雜訊指數為6 dB。操作電壓和電流消耗分別為1.2 V和21.9 mA。由於低雜訊放大器串接混頻器，所以低雜訊放大器的輸出阻抗以及混頻器的輸入阻抗皆達到50 Ω。混頻器執行從28-30 GHz頻率到10MHz的頻率轉換。模擬結果表示，混頻器的轉換增益為 2-3 dB，三階輸入截止點為 – 7 dBm，雜訊指數為26 dB。混頻器採用1.2 V的操作電壓，電流消耗為0.83 mA。

A 28-30 GHz RF front-end circuit for non-invasive glucose sensing system is designed and fabricated in a standard TSMC 90nm CMOS process. The LNA achieves the power gain of 19.43 dB at 29 GHz and the minimum noise figure of 6 dB at 29 GHz. The supply voltage and current consumptions are 1.2 V and 21.9 mA, respectively. Based on the micro-mixer, the impedance between LNA output and mixer input of 50 Ω is achieved.
The mixer performs frequency translation from the 28-30 GHz band to 10 MHz. Simulation results show the conversion gain of 2~3 dB, the IIP3 ¬of -7¬¬ dBm and the NF of 26 dB can be achieved. Operating from the 1.2-V supply, the mixer consumes the current of 0.83 mA.

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