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Compact MIMO Antennas for Mobile Terminals in 5G and Beyond
时间:2019-08-29 17:00    点击:   所属单位:电子工程学院
讲座名称 Compact MIMO Antennas for Mobile Terminals in 5G and Beyond
讲座时间 2019-08-28 16:00:00
讲座地点 西安电子科技大学北校区主楼3区201学术报告厅
讲座人 Prof. Steven Gao
讲座人介绍
Steven Gao is a Full Professor and Chair in RF and Microwave Engineering, and also the Director of Graduate Studies at the School of Engineering and Digital Arts, University of Kent, UK. His research covers smart antennas, phased arrays, MIMO, reconfigurable antennas, wideband/multiband antennas, antennas for mobile communications/satellite communications/space-borne radars, RF/microwave/mm-wave/THz circuits, UWB radars, synthetic-aperture radars, and sensors for healthcare. He co-authored/co-edited three books (Space Antenna Handbook, Wiley, 2012; Circularly Polarized Antennas, IEEE-Wiley, 2014; Low-Cost Smart Antennas, Wiley, 2019), over 300 papers and 10 patents. He is an Associate Editor of five international Journals (IEEE Transactions on Antennas and Propagation; Radio Science; IEEE Access; Electronics Letters; IET Circuits, Devices and Systems), and the Editor-in-Chief for John Wiley & Sons Book Series on "Microwave and Wireless Technologies".  He is an IEEE Fellow and was a Distinguished Lecturer of IEEE Antennas and Propagation Society (2014-2016), and General Chair of LAPC 2013, UK. He is also a Fellow of Royal Aeronautical Society, UK, and a Fellow of IET.
讲座内容
Multiple Inputs and Multiple Outputs (MIMO) antennas are required for mobile phones in 5G and beyond. One of the biggest challenges is: How to achieve high isolation between antennas closely packed? This talk gives a brief overview of various techniques proposed in recent years, such as the use of parasitic elements, neutral lines, metamaterials, electromagnetic band gap (EBG), etc. It is shown that these techniques could achieve good isolation up to about 20 dB when antenna elements have a distance of about half wavelength, but the performance deteriorates quickly when the antenna elements distance is reduced further. A technique called Common-Mode/Differential-Mode (CM/DM) antenna design is then presented. The CM/DM technique is shown to be able to achieve high isolation over 20 dB when the antenna elements have zero distance between them. The technique is promising for achieve compact-size highly integrated MIMO antenna systems for smart phones in 5G and beyond. 
电子工程学院            天线与微波技术国家重点实验室
国际合作与交流处      IEEE AP/MTT Xi’an Chapter
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