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研究生:邱致歆
研究生(外文):Chih-Hsin Chiu
論文名稱:微波高轉換效率整流天線設計與實現
論文名稱(外文):Design and Implementation of Microwave High Conversion Efficiency Rectenna
指導教授:邱弘緯邱弘緯引用關係
口試委員:汪濤陳筱青黃育賢
口試日期:2012-01-12
學位類別:碩士
校院名稱:國立臺北科技大學
系所名稱:電腦與通訊研究所
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:77
中文關鍵詞:整流電路蕭基二極體微帶傳輸線陣列天線整流天線轉換效率
外文關鍵詞:Rectifierschottky diodemicro strip linearray antennarectennaconversion efficiency
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本論文研究提出操作於2.45GHz微波頻段高轉換效率整流電路,具有小型化、低成本、材料取得容易等優勢。在整流電路設計中利用非線性射頻蕭基二極體、微帶傳輸線阻抗轉換原理,與使用微帶線電路來達到低通濾波器與匹配網路的功能。整流電路初步設計使用Agilent ADS 2009模擬做為實做電路架構與參考,並將高頻訊號整流成直流電源。在接收天線方面,天線初步設計使用Ansoft HFSS 11設計與模擬高指向性2x2微帶陣列天線,作為實現接收天線的參考來源。後續整流電路與陣列天線整合為整流天線(Rectenna)架構,來實現2.45GHz微波頻段功率傳輸之應用。已實現2x2微帶陣列天線指向性可達12.49dBi;已實現LPF饋入低功率高效率整流電路固定負載為390Ohm,輸入功率為100mW時,電路轉換效率為76.2%,輸出電壓可達5.45V。該2x2整流天線距離發射天線(量測距離)為1.4米,發射端輸入功率為316mW,達到最佳轉換效率為87.8%,接收電壓達1.28V。

This thesis proposes operating at 2.45GHz microwave frequency band high-efficiency rectifier circuit, which has the advantages of small, low-cost, material easy to obtain and etc. The rectifier circuit design uses nonlinear RF Schottky diode, microstrip transmission line impedance conversion principle, with the use of microstrip circuit to achieve low-pass filter and matching network functions. We use preliminary design of the rectifier circuit simulated on Agilent ADS 2009 as the practical circuit, and high-frequency signal is rectified into DC power by this circuit. As for the receiving antenna, we use Ansoft HFSS 11 to do the simulation for the high-directivity microstrip 2 x 2 antenna array, and as the reference of the practical receiving antenna. The proposed rectenna (integration of rectifier and array antenna) architecture is to achieve the 2.45GHz microwave power transmission applications. The realized 2 x 2 microstrip array antenna directivity is up to 12.49dBi; the realized LPF has been fed to high-efficiency rectifier circuit with fixed load 390Ohm to achieve the circuit conversion efficiency of 76.2% and the output voltage of up to 5.45 V when input power is 100mW. The 2x2 array rectenna could achieve the best conversion efficiency of 87.8% and the output voltage of 1.28V with the distance of 1.4 meter with the transmitter when the input power of transmitter is 316mW.

中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
表目錄 vi
圖目錄 viii
第一章 緒論 1
1.1 研究背景 1
1.2 研究動機與目的 2
1.3 整流天線先前技術簡介 3
1.4 整流天線未來應用 5
第二章 整流電路與天線設計概要 8
2.1 轉換效率定義 8
2.1.1 整流電路轉換效率定義 8
2.1.2 整流天線轉換效率定義 10
2.1.3 整流天線陣列接收功率定義 11
2.2 整流二極體 13
2.2.1 蕭基二極體特性概述 13
2.2.2 HSMS-2820蕭基二極體特性概述 16
2.3 微帶傳輸線設計 18
2.3.1 無損傳輸線上的反射 18
2.3.2 傳輸線的特性 20
2.4 微帶天線設計概要 22
2.4.1 天線基本概念 22
2.4.2 微帶貼片天線 23
第三章 高指向性陣列天線模擬與量測結果 27
3.1 1x1陣列天線模擬與量測結果 27
3.2 1x2陣列天線模擬與量測結果 30
3.3 2x2陣列天線模擬與量測結果 33
第四章 低功率高整流效率電路模擬與量測結果 37
4.1 微帶線饋入半波整流電路 39
4.1.1 微帶線饋入半波整流電路模擬 39
4.1.2 微帶線饋入半波整流電路量測 40
4.2 LPF饋入半波整流電路 44
4.2.1 LPF饋入半波整流電路模擬 44
4.2.2 LPF饋入半波整流電路量測 45
4.3 微帶線饋入低功率高效率整流電路 49
4.3.1 微帶線饋入低功率高效率整流電路模擬 49
4.3.2 微帶線饋入低功率高效率整流電路量測 50
4.4 LPF饋入低功率高效率整流電路 54
4.4.1 LPF饋入低功率高效率整流電路模擬 54
4.4.2 LPF饋入低功率高效率整流電路量測 56
第五章 整流天線整合與量測結果 60
5.1 整流天線量測結果 60
5.2 整流天線陣列接收功率量測 66
第六章 結論 72
參考文獻 75


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