指導教授：瞿大雄臺灣大學：電信工程學研究所杜奕漳Du, Yi-ChangYi-ChangDu2014-11-302018-07-052014-11-302018-07-052014http://ntur.lib.ntu.edu.tw//handle/246246/264360本論文結合三天線法及天線散射矩陣建立反射式三天線法，用以量測天線增益及結構散射特性，並利用於不同天線距離所量測之資料，計算發射天線與接收天線相位中心間之距離。在量測上，包含撰寫電腦程式，建立使用者人機介面，記錄網路分析儀量測之單埠反射係數，並從量測之反射係數求得各天線之增益及結構散射特性，並將量測結果與穿透式三天線法予以比較。In this thesis, a reflection-type three antenna method is to combine the concepts of three antenna method and antenna scattering matrix to measure the antenna gain and its structural scattering characteristics. The path lengths between the transmitting and receiving antennas can be calculated from the measured data at two different distances. In the measurement, a man-machine interface is written in Visual Basic language to record the measured data from the VNA, then each antenna gain and its structural scattering characteristics can be calculated from the measured data. In addition, the measurement results are compared with the results using the transmission-type three antenna method.中文摘要..............................................i 英文摘要.............................................ii 目錄................................................iii 圖目錄................................................v 表目錄.............................................viii 第一章 緒論..........................................1 1.1 天線特性........................................1 1.1.1 主波束立體角....................................1 1.1.2 指向性及增益....................................2 1.1.3 天線孔徑........................................3 1.2 三天線法........................................3 1.2.1 公式............................................4 1.2.2 量測架構..................................10 1.3 天線之後向散射量測.............................13 1.4 章節概述.......................................15 第二章 反射式量測法.................................16 2.1 使用反射法量測雙埠元件之S參數..................16 2.2 反射式三天線法.................................17 2.3 傳播路徑長度考量...............................24 第三章 量測考量.....................................29 3.1 量測架構.......................................29 3.2 量測資料記錄程式...............................32 3.3 天線量測步驟...................................33 第四章 天線特性量測結果.............................37 4.1 傳播路徑長度...................................50 4.2 天線增益.......................................52 4.3 天線散射特性...................................56 第五章 結論.........................................58 參考文獻.............................................60 附錄一 量測資料記錄程式.............................61 附錄二 量測資料處理程式.............................685358710 bytesapplication/pdf論文公開時間：2019/08/01論文使用權限：同意有償授權(權利金給回饋學校)天線量測反射式三天線法thesishttp://ntur.lib.ntu.edu.tw/bitstream/246246/264360/1/ntu-103-R01942079-1.pdf