本研究使用TSMC 0.18um Mixed Signal/RF CMOS 1P6M製程研製應用於射頻辨識系統被動式標籤之射頻前端電路，採用整合電路之方式來降低電路功率的損耗，其中包括：倍壓電路 ( Charge Pump )、穩壓電路 ( Regulator )、調變電路 ( Modulator ) 以及解調變電路 ( Demodulator )，其晶片面積為0.714 x 1.01 mm2。量測方式採用打鎊線 ( Bond-Wire ) 至PCB上，並加入T型匹配電路作整合量測。研究結果經由實驗室實際量測結果如下：倍壓電路在輸入功率為-14 dBm時，即可倍壓至1.51 V，有效降低功率消耗，其漣波電壓為0.14 V。穩壓電路在輸入功率-6dBm時，輸出電壓為1.46V，漣波電壓為0.06V，可得到較為乾淨之直流電壓。解調變電路當調變訊號為資料傳輸率15 Kbps之數位訊號時，可較為精確將波峰抓出。在調變電路部分利用功率耦合器將反散射訊號取出，在頻譜上可以明顯看到調變訊號強度約為-36.7dBm。經過採用標準雙偶極天線進行距離量測，可倍壓之距離，最遠可達1.2公尺。

This thesis presents the RF front-end for RFID passive-tag applications using TSMC 0.18um Mixed Signal/RF CMOS 1P6M process. The RF front-end consists of charge pump, regulator, modulator and demodulator; its size is 0.714 x 1.01 mm2. A signal with -14 dBm at 915 MHz is injected into the charge pump, the voltage can reach to 1.51V, and the ripple voltage is 0.14V. A signal with -6 dBm at 915 MHz is driven at the input, the voltage of the regulator can reach to 1.46V, and the ripple voltage is 0.06V. Referring the measured result, the proposed demodulator can successfully detect the signal with data rate, 15 Kbps. The modulator can response the signal with the power -36.7 dBm to the reader. Finally, we demonstrate the read range of the proposed passive-tag IC integrated with the standard dipole antenna is 1.2 meter.

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