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題名 | 應用於節能型無線感測網路偵測之超低功耗高效能喚醒接收機=An Ultra-low-power High FOM Wake-up Receiver for Energy-saving Wireless Sensor Network |
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作者 | 鄒育霖; | 書刊名 | 電腦與通訊 |
卷期 | 148 2012.12[民101.12] |
頁次 | 頁91-99 |
專輯 | 綠能電子設計技術專題 |
分類號 | 448.6 |
關鍵詞 | 喚醒接收器; 直流耦合; 推拉式電流再利用架構; Wake-up receiver; DC coupling; Push-pull current reuse topology; |
語文 | 中文(Chinese) |
中文摘要 | 本文提出應用於ISM頻段且功耗低於100微瓦之開關式調變喚醒接收機。先針對超低功耗喚醒接收機系統層架構進行分析,並將提出推拉式電流再利用(PPCRU)技術,搭配可程式化偏壓電流控制方法,使本架構可於最低功率消耗條件下達到最高射頻轉換增益需求。而此喚醒接收機採用TSMC 0.18um製程,晶片面積約0.79 mm^2。經量測結果顯示,此技術可在核心射頻電路不消耗額外功耗下增加4.8dB之轉換增益,並且提升OOK之質量指標3.7dB。於1.2 V供應電壓下的最小功率消耗幸福888μ。當系統採取100kbps資料傳送率且誤碼率為0.001等級時,接收系統靈敏度可達-63 dBm,系統總消耗能量約為888pJ/b。此外當開啟所提出之增益改善技術後,系統總性能將可達到-183.4 dB。有鑒於此,本文所提出之技術將可達成功率消耗與增益需求間之最佳化。 |
英文摘要 | An ISM band sub-100μW Wake-up Receiver (WuRx) has been presented in this study. Issues regarding tradeoffs between system architectures for Ultra -low Power (ULP) WuRx are analyzed and compared. Push-Pull Current Re-Use (PPCRU) topology with programmable bias-controlled technique has been proposed for maximum conversion gain requirement under minimum power consumption. The chip size of WuRx is 0.79 mm2 and implemented in 0.18μm CMOS technology. Measurement shows this technique increases conversion gain by 4.8 dB without extra core current consumption which comes the result of 3.7 dB FOM improvement. Minimum power consumption of WuRx is 88.8 μW from 1.2 V supply. When operating at 100 kbps data rate, the sensitivity is -63 dBm (10-3 BER) with 888 pJ/b energy consumption. Due to gain improvement function in RF front end, the optimum FOM of -183.4 dB can be achieved. Therefore, the proposed gain-improved technique fulfilled optimum system performance between power consumption and conversion gain requirement. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。