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研究生:許佳裕
研究生(外文):Chia-Yu Hsu
論文名稱:射頻能量擷取裝置之設計與實現
論文名稱(外文):Design and Implementation of the Radio Frequency Energy Harvester
指導教授:宋國明宋國明引用關係
口試委員:謝祥圓楊維斌黃育賢
口試日期:2012-07-06
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電機工程系所
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:48
中文關鍵詞:射頻能量Native MOSMDVM
外文關鍵詞:RF EnergyNative MOSMDVM
相關次數:
  • 被引用被引用:2
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本篇論文係研究一種射頻能量擷取(Radio Frequency Harvesting)系統,其包含:輸入匹配電路、整流器及倍壓電路等單元。在輸入匹配電路部分,利用power match技巧以期最大功率傳輸及最大轉換效率;在整流器(rectifier)與倍壓器(multiplier)部分,本研究選擇利用native MOS來實現,其具有超低臨界電壓(Threshold voltage, Vth )藉此可以改善電路在超低功率輸入時的轉換效率;而倍壓電路係使用MDVM(Modified Dickson voltage multiplier)電路,其利用狄克森倍壓電路(Dickson voltage multiplier),將電壓提高。在內文中,將介紹適用於GSM及UTMS頻帶的射頻能量擷取裝置,並討論其差異與設計考量。
本篇論文使用GSM/UTMS 頻帶之射頻能量擷取裝置,其電路設計與模擬皆使用標準台積電0.18um 1P6M CMOS製程來完成。模擬結果顯示,在GSM頻段的輸入-10 dBm時,其轉換效率為20%;而在負載阻抗為109k Ω的條件下,其輸出電壓為1.5 V,且其輸入返還損失為-17 dB。在UTMS頻段下,同樣是輸入為-10 dBm的條件下,其轉換效率亦可達20%;而在負載阻抗為142k Ω時,其輸出電壓可達1.9 V,且其輸入返還損失為-26 dB。


In this thesis, a radio-frequency energy harvester is presented for GSM/UTMS Band. The energy harvester consists of a matching network, a rectifier and a multiplier. The matching network is used to obtain the maximum power transfer by using power match concept and to have the maximum conversion efficiency. Furthermore, the native MOS is adopted with ultra-low threshold voltage (Vth) to improve the conversion efficiency in ultra-low power input for rectifier and multiplier. Especially for multiplier, the MDVM (Modified Dickson Voltage Multiplier) is selected to rise the output voltage. Moreover, the thesis introduces many applicable fields for GSM/UTMS RF energy harvester.
All design is fabricated in TSMC 0.18-μm 1P6M standard CMOS process in this thesis. The simulation results present that the power efficiency, the output voltage and the input return loss are 20%, 1.5 volt and -17dB, respectively, with an input power of -10dBm and a load impedance of 109k Ω in GSM band; and that the power efficiency, the output voltage and the input return loss are 20%, 1.9 volt and -26dB, respectively, with the same input power and a load impedance of 142k Ω in UTMS band.


摘 要 ii
ABSTRACT iii
誌 謝 iv
目 錄 v
表目錄 vii
圖目錄 viii
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機 2
1.3 論文架構 2
第二章 射頻能量系統獲取系統基本設計理論 4
2.1 簡介 4
2.2 天線 4
2.3 匹配網路 5
2.4 整流電路及倍壓電路 5
2.4.1 電壓倍壓電路 6
2.4.2 Cockroft -Walton 電壓倍壓電路 6
2.4.3 Villard 電壓倍壓電路 7
2.4.4 Dickson 電壓倍壓電路 8
2.4.5 改良版 Dickson 倍壓電路 8
2.4.6 Mandal – Sarpeshkar 電壓倍壓電路 10
2.4.7 VT消除電壓倍壓電路 10
2.4.8 Bergeret 電壓倍壓電路 11
2.5 負載 12
2.6 效率 12
第三章 射頻能量獲取系統設計考量 15
3.1 簡介 15
3.2 設計流程 15
3.3 匹配網路的設計考量 16
3.4 整流及倍壓電路的設計考量 18
3.4.1 1階整流器分析 18
3.4.2 N階整流器分析 22
3.4.3 電壓倍壓器等效模型 24
3.5 元件的選擇 25
第四章 適用於GSM/UTMS頻段射頻能量獲取裝置 28
4.1 簡介 28
4.2 整體架構及電路模擬 28
4.2.1 14階射頻轉直流整流電路 28
4.2.2 模擬結果 29
4.2.3 整結合兩種頻段之模擬結果 35
4.3 文獻比較 38
第五章 射頻能量獲取系統之射頻整流晶片 39
5.1 簡介 39
5.2 4階射頻值流整流器設計 39
5.3 模擬結果 40
5.4 佈局平面圖 41
5.5 量測結果 42
第六章 結論及未來工作 44
參考文獻 46


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