應用於感測環境參數之超高頻被動式射頻辨識標籤電路

A UHF Passive RFID Transponder for Sensing Environmental Parameters

陳俊帆(Jiun-Fan Chen)

指導教授 ： 吳紹懋

元智大學/電機通訊學院/電機工程學系/碩士(2009年)

摘要

本論文實現超高頻被動式無線射頻辨識系統前端電路之RF-DC整流器和穩壓器，將天線所接受到的功率轉換成直流電壓供給電路使用。本研究詳細地分析整流電路，針對寄生電容、電阻造成的損耗，輸入電壓與整流電路級數的關係以及級數對輸出電壓的影響做進一步的論述，並作模擬驗證。最後採用TSMC 0.35um CMOS 2P4M的標準製程實現，並量測IC晶片各個子電路功能，整體晶片的面積大小為0.576 x 0.47 mm2，能量損耗為805uW。其中穩壓器耗去了大部分的能量，而若提高負回授電阻將可降低穩壓器之功耗，提升整體晶片性能。

關鍵字

射頻辨識系統 ； 標籤電路 ； 被動式 ； 超高頻

並列摘要

In this thesis, we implement a front-end circuit of Ultra High Frequency (UHF) passive Radio-Frequency Identification (RFID) tag, including RF-DC converter and regulator. Thorough analysis of the RF to DC circuit are presented analytically, focusing on the loss of the parasitic capacitor and resistance, the relationship between the input voltage and the n-th stage of the rectifier circuit and the number of stages versus the output voltage. The chip is fabricated in standard TSMC 0.35um CMOS 2P4M process and the function of each block in the chip is measured respectively. The chip area is 0.576 x 0.47 mm2, and the total power consumption is 805uW. The LDO regulator circuit consumes most of the power.

並列關鍵字

Radio Frequency Identification ； Transponder ； Passive ； UHF

參考文獻

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