报告题目：UWB Feed Technology
主讲嘉宾：杨坚 教授 (瑞典Chalmers大学)
报告时间：2026年7月6日 16:30
报告地点：台本部南楼210会议室
报告邀请人：崔朗
报告摘要：
This talk presents two state-of-the-art feed technologies for ultra-wideband (UWB) radio telescopes: the Eleven feed and the quad-ridged flared horn, together with C-band phased array feed (PAF) technology. It will introduce the operating principles of these feed systems, discuss the key design challenges associated with achieving wide bandwidth, high sensitivity, and excellent polarization performance, and present representative hardware developed for radio astronomy applications. The talk will also highlight recent advances in these technologies and discuss potential directions for further development to meet the growing demands of next-generation radio telescopes.
主讲嘉宾简介：
Jian Yang (M’02-SM’10) received B.S. degree from the Nanjing University of Science and Technology, Nanjing, China, in 1982, and the M.S. degree from the Nanjing Research Center of Electronic Engineering, Nanjing, China, in 1985, both in electrical engineering, and the Swedish Licentiate and Ph.D. degrees from the Chalmers University of Technology, Gothenburg, Sweden, in 1998 and 2001, respectively. From 1985 to 1996, he was with the Nanjing Research Institute of Electronics Technology, Nanjing, China, as a Senior Engineer. From 1999 to 2005, he was with the Department of Electromagnetics, Chalmers University of Technology as a Research Engineer. During 2005 and 2006, he was with COMHAT AB as a Senior Engineer. From 2006 to 2010, he was an Assistant Professor at the Department of Signals and Systems, Chalmers University of Technology. From 2010, 2016 and 2020, he has been an associate professor, a professor, and a full professor, respectively, at the Department of Electrical Engineering, Chalmers University of Technology. He has published more than 100 journal articles and about 200 peer reviewed conference papers. H-index: 34 and i10-index: 102. His research interests include ultra-wideband antennas and UWB feeds for reflector antennas, mmWave antennas, mmWave multilayer phased array antennas, mmWave SWE (sheet waveguide element) antennas, Gap waveguide antennas, UWB radar systems, UWB antennas in near-field sensing applications, hat-fed antennas, reflector antennas, radome design, and computational electromagnetics.