Studying the Self-impedance and the Far-field Calibration System for MIMO Antennas

• Main Authors: Esther Lee, 李玉
• Other Authors: Cheng-Nan Hu
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/66816486065249489821

碩士 === 亞東技術學院 === 資訊與通訊工程研究所 === 101 === In recent years, MIMO System has been widely discussed, but there are questions about mutual coupling effect and the calibration of the MIMO system which is less knowledge in the literature. In this thesis, we first study the mutual coupling effects on self-impedance of the MIMO antenna, which is a five-element microstrip closely coupled linear array. Well agreement in the comparison between measured and simulated results validates the effectiveness of the numerical analysis for further studying the mutual coupling effects on MIMO system performance. Second, we propose a far-field calibration procedure -- phase rotation method (PRM). EM-based numerical validation proves its effectiveness as an alternative to the near-field test range employing at ground-based area due to its accuracy, simplicity, cost-effectiveness, and easy to implement.