Antenna Gain and Scattering Measurements Using Reflection-Type Three Antenna Method

• Main Authors: Yi-Chang Du, 杜奕漳
• Other Authors: 瞿大雄
• Format: Others
• Language: zh-TW
• Published: 2014
• Online Access: http://ndltd.ncl.edu.tw/handle/86132242442472682818

碩士 === 國立臺灣大學 === 電信工程學研究所 === 102 === 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.