2026-05-19
浏览次数：11报告会题目：Lorentz-Type Dispersive Metamaterial-based Single-mode Dual-band Metantenna
报告会时间：2026年5月20日（周一）下午4:00
报告会地点：逸夫科学馆504
邀请人：曹云飞副教授
主持人：薛泉教授
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摘要：
Materials form the foundation of antenna design, and their characteristics can provide new opportunities for innovation. This talk illustrates the creation of an antenna operating in a single mode at dual frequencies by leveraging Lorentz-type dispersive metamaterials. The methodology is inspired by the observation that materials described by the Lorentz model exhibit a higher refractive index at lower frequencies and a lower refractive index at higher frequencies relative to their resonance frequency. This property enables an antenna loaded with Lorentz-type dispersive material substrates to operate with the same electrical size at both lower and higher frequencies. This phenomenon opens the possibility for an antenna to generate single-mode radiation across both lower and higher frequency bands. To achieve the dispersive permeability of Lorentz-type metamaterials, single-layer dual-split resonance rings (SRRs) are proposed. Subsequently, a single-mode dual-band patch antenna is designed to validate the proposed method within the Sub-6 GHz bands.
个人简历：
Zhi Ning Chen received his two Ph.D. degrees in 1993 and 2003 from institutions in China and Japan, respectively. He currently serves as a Provost’s Chair and Professor in the Department of Electrical and Computer Engineering and as Director of the Advanced Research and Technology Innovation Centre at the National University of Singapore.
Professor Chen has authored or co-authored 760 journal and conference papers, along with seven books. His current research interests include electromagnetic metamaterials and metasurfaces, metantennas, AI algorithms for generative antenna design, antennAI, and wireless systems.
Professor Chen was elevated to IEEE Fellow in 2007, elected Fellow of the Academy of Engineering, Singapore in 2019, and is a Fellow and Vice President of the Asia-Pacific Artificial Intelligence Association (2021). Among numerous academic and technical honors, he received the IEEE AP-S John Kraus Antenna Award in 2021 and the EurAAP Antenna Award in 2025.
In addition to his research achievements, Professor Chen has played a leading role in international conferences. He served as the General Chair of the 2021 IEEE AP-S Symposium (Singapore) and is the Founding General Chair of several key conferences, including the IEEE International Workshop on Antenna Technology (2005), the Asia-Pacific Conference on Antennas and Propagation (2012), and the Marina Forum on Metantennas+X (2021).