On the Design of Compact Multiple Broadband MIMO Planar Antenna

• Main Authors: Cai, Yu-Sheng, 蔡郁聖
• Other Authors: Chuang, Ching-Song
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/97206233326943562623

碩士 === 龍華科技大學 === 電子工程系碩士班 === 101 === Compact multiple broadband MIMO planar antenna presented on this thesis, fit for fourth-generation TDD LTE mobile communication system (TD-LTE). First, to use wineglass type ultra wide band monopole antenna, add a square bending loop to reach self-resonant and expand the GSM 900 MHz band, can be applied to ultra wide band and GSM dual band effect. Then presented a parasitic multiple bands monopole antenna, first to use broadband monopole antenna to produce 2.4 GHz band in the LTE-TDD spectrum, then use inverted U-shaped notch to produce 3.5 GHz band, the final a bending loop expand the 1.7 GHz band, complete to cover all frequencies in the LTE-TDD spectrum in the multiple band monopole antenna. Finally, design the tree structure of asymmetric to cover all frequencies in the LTE-TDD spectrum in the multiple band monopole antenna, then add a isolation element between the two antennas made of multiple band MIMO antenna, completed to cover all frequencies in the LTE-TDD spectrum and MIMO antenna with MIMO characteristics; same time, the thesis presented the tree structure of asymmetric, can effectively cut down design complexity on isolation element between the multiple broadband MIMO antenna.