讲座时间：美高梅网上赌博年5月24日09:00
讲座地点：信息技术科研楼A613会议室
Beyond 5G towards a Super-connected World
美高梅网上赌博：美高梅网上赌博 W. 美高梅网上赌博教授 ，IEEE Life Fellow
美国亚利桑那大学
讲座摘要：
A variety of metamaterial-inspired, near-field resonant parasitic (NFRP), electrically small antennas have been developed that exhibit multifunctional performance, enhanced bandwidths, and higher directivities. Their engineering is achieved by combining multiple NFRP elements with simple driven radiators. Higher directivity is obtained by simultaneously exciting balanced electric and magnetic NFRP elements, leading, for example, to endfire and broadside radiating Huygens dipole antennas (HDAs). A variety of these basic unidirectional mixed-multipole antennas (UMMAs) have been fabricated and tested to confirm their attractive properties. Several of these basic UMMA systems will be reviewed briefly.
Nonetheless, even more highly directive antenna systems are being sought to address the perceived needs of the NextG wireless systems and their applications. Practical alternatives to complex, power-hungry phased arrays are truly desired. UMMAs have been developed that offer superdirective performance characteristics with high efficiency in compact formats as well as having directivities that surpass several known theoretical bounds. These single-port broadside-radiating NFRP-based UMMAs will be described along with their superdirective performance characteristics. While the general consensus over many years has been that superdirective arrays are not practical, a variety of endfire-radiating linear arrays of parasitic and active, closely-spaced electric or magnetic dipole have been realized in the last 20 years. Experimentally verified examples will be described briefly. Linear arrays of the single-port superdirective broadside-radiating UMMAs will then be presented and emphasized. Beam steering examples will be given. It will be demonstrated that all of these broadside-radiating arrays are also superdirective. These efforts further substantiate current research advances demonstrating practical superdirective systems are achievable.
美高梅网上赌博简介：
美高梅网上赌博 W. 美高梅网上赌博 received the B. Sc. (magna cum laude) degree (Hons.) in physics from Brown University, Providence, RI, USA, in 1974; the M.S. and Ph.D. degrees in physics from the University of Illinois at Urbana-Champaign, Urbana, IL, USA, in 1975 and 1980, respectively; and an Honorary Doctorate degree from the Technical University of Denmark, Kongens Lyngby, Denmark in 2012.
He is currently a Professor Emeritus with the Department of Electrical and Computer Engineering at the University of Arizona, Tucson, AZ, USA. He was a Litton Industries John M. Leonis Distinguished Professor in the College of Engineering and was also a Professor in the College of Optical Sciences until his retirement in 2018. He was also a Distinguished Professor in the Global Big Data Technologies Centre in the Faculty of Engineering and Information Technologies (FEIT) at the University of Technology Sydney, Ultimo NSW Australia from 2016 until 2023. He was the Computational Electronics and Electromagnetics Thrust Area Leader with the Engineering Research Division of the Lawrence Livermore National Laboratory before joining The University of Arizona in 1990.
Prof. 美高梅网上赌博 was the recipient of the 2019 IEEE Electromagnetics Award (IEEE Technical Field Award). He is an IEEE Life Fellow, as well as a Fellow of OPTICA (previously the Optical Society of America, OSA) and the American Physical Society (APS). He was the 2014-2015 Fulbright Distinguished Chair in Advanced Science and Technology (sponsored by DSTO, the Australian Defence Science and Technology Organisation). He served as the President of the IEEE Antennas and Propagation Society (AP-S) in 2005 and has had many other AP-S leadership roles. He is also actively involved with the URSI (International Union of Radio Science) Commission B and the European Association on Antennas and Propagation (EurAAP). He is the co-Editor of the best-selling 2006 IEEE-Wiley book, Metamaterials: Physics and Engineering Explorations, as well as an author and co-Editor, respectively, of the recent Wiley-IEEE books: Advanced Antenna Array Engineering for 6G and Beyond Wireless Communications (2022) and Antenna and Array Technologies for Future Wireless Ecosystems (2022).
