Hui Li
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Main positions:信息与通信工程学院副院长
Gender:Female
Alma Mater:Royal Institute of Technology
Degree:Doctoral Degree
School/Department:School of Information and Communication Engineering
Discipline:Communication and Information Systems. Electromagnetic Field and Microwave Technology
Business Address:No. 2, Linggong Road, Dalian University of Technology, Dalian, Liaoning Province; 116024
Contact Information:hui.li@dlut.edu.cn
E-Mail:hui.li@dlut.edu.cn
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Indexed by:期刊论文
Date of Publication:2017-08-16
Journal:IET MICROWAVES ANTENNAS & PROPAGATION
Included Journals:SCIE、EI、Scopus
Volume:11
Issue:10
Page Number:1409-1414
ISSN No.:1751-8725
Key Words:dipole antennas; omnidirectional antennas; electromagnetic wave polarisation; baluns; antenna radiation patterns; UHF antennas; compact omnidirectional circularly polarised antenna; bended dipole; integrated baluns; omnidirectional radiation; compact omnidirectional CP antenna; frequency 2; 43 GHz
Abstract:A circular-polarised antenna with omni-directional radiation is presented in this study. The proposed antenna consists of four bended dipoles, excited simultaneously by integrated baluns. The E-phi and E components, generated by the horizontal and vertical parts of the bended dipoles, are shown to have a phase difference of 90 degrees. The operating principle of achieving circular polarisation (CP) with bended dipoles are described and derived, according to which guidelines for designing CP antennas are provided. Following the guidelines, a prototype of the compact omni-directional CP antenna is fabricated, with a size of 0.27(0)x0.27(0)x0.13(0), a fractional bandwidth of 9% at 2.43GHz and an average left-handed circular polarisation (LHCP) gain above 0.15dBic in the operating band.
Hui Li was born in Heilongjiang province, China. She received the B.E. degree in optical engineering from Tianjin University (TJU), China, in 2007 and Ph.D degree in electrical engineering from the Royal Institute of Technology (KTH), Sweden, in 2012. She is currently an associate professor at Dalian University of Technology. Research Interests:Multiple input multiple output systems, millimeter wave antenna, implantable antnena, RFID, theory of characteristic mode and etc.
