KEYNOTE SPEAKER 1
Prof. Hiroyuki Arai
Yokohama National University, JAPAN
Title: Development of Cellular Base Station Antennas toward 6G System
Abstract: This talk presents the challenge of the base station (BS) antenna development toward the future cellular system. The next mobile communication system will be integrated with the current system and the coverage area will be extended to space, atmosphere and undersea using very wide frequency spectrum. High frequency system utilizes high gain and beam steering antennas to compensate large propagation loss, such as massive MIMO, multi-beam and beam forming antenna. Advanced antenna design is required to expand the sophisticated BS antennas by developing current antenna technologies such as beam tilt, diversity, multi-sector, spot beam, vertical sectorization and etc. Technical issues of the future antenna are discussed after summarizing the development history of cellular BS antennas. The challenge to launch unexplored frequency such as Tera-Hertz and optical region is also presented in this talk.
Biography: Hiroyuki Arai received the B.E. degree in Electrical and Electronic Engineering, M.E. and D.E.in Physical Electronics from Tokyo Institute of Technology in 1982, 1984 and 1987, respectively. Now he is professor in Department of Electrical and Computer Engineering, Yokohama National University. He was editor-in-chief of IEICE Trans. on Communications, 2005 -2007, and was chair of IEEE AP-S Japan Chapter, 2009 – 2010. He was associate editor of IEEE Transactions on Antennas and Propagation, 2011-2013, and the chair of Technical Group on Antennas and Propagation of IEICE, 2013-2014, and the general chair of ISAP 2020, Osaka. He is Fellow of IEEE and IEICE.
KEYNOTE SPEAKER 2
Prof. Ir. Dr. Mohd Fadzil Ain
Universiti Sains Malaysia, MALAYSIA
Title: Gain Enhanced On-chip Monopole Antenna Utilizing Dual Rectangular Patch Artificial Magnetic Conductor at 5.8 GHz
Abstract: The rising popularity of chip-based devices has spurred greater interest in on-chip antenna (OCA) technology due to its compact size, low power consumption, and ease of integration into footprint chip-size transceivers. However, OCAs face challenges such as low gain, poor radiation efficiency, and a distorted radiation pattern caused by low resistivity and high permittivity of the lossy silicon substrate. This study investigates the effect of a dual-rectangular patch (DRP) structured artificial magnetic conductor (AMC) on OCA’s performance enhancement. A DRP-AMC structure was developed as a modified AMC reflective surface, optimized to boost the gain and characteristic of the antenna at 5.8 GHz. A prototype antenna was fabricated and tested to assess the OCA’s performance. The results showed a gain increase of 40.2% compared to the non-AMC-inspired model and 29.2% over the single-rectangular patch (SRP) model. This improvement is attributed to the DRP-AMC’s performance, making this antenna suitable for Wi-fi 6, RFID and WiMax applications at 5.8 GHz
Biography: Prof. Ir. Dr. Mohd Fadzil Bin Ain: Received BS degree in Electronic Engineering from Universiti Technologi Malaysia, Malaysia(UTM), 1997;MS in Radio frequency and Microwave from Universiti Sains Malaysia(USM),Malaysia in 1999; PhD degree in Radio frequency and Microwave from University of Birmingham, United Kingdom in 2003; In 2003 he joined school of Electrical and Electronics Engineering, he is currently a Professor in VK7 Grade, A Former Dean of Research Postgraduate and Networking, and the Director of Collaborative Microelectronic Design Excellence Centre (CEDEC). He is Actively Involve in Technical Consultancy with Several Companies Microwaves Equipment. His current research interest includes MIMO wireless system FPGA/DSP, ka-band transceiver design, Dielectric antenna, RF characteristics of dielectric material, and microwave propagation study. Prof Ir. Dr Ain’s award and honours include international Invention Innovation Design and Technology Exhibition, International Exposition of Research and Inventions of Institutions of Higher learning, Malaysia Technology Expo, Malaysia Association of Research Scientist, Seoul International Invention Fair iENA, BEST paper for the 7TH WSEAS, International Conference on Data Networks, Communications, Computers, and International Conference on X-Ray and related Techniques and many more Awards and Gold medals on Innovations and Technology