Plenary Speakers

Biography

Wayne S. T. Rowe received the B.Eng. (Hons) and Ph.D. degree from RMIT University, Melbourne, Australia in 1998 and 2002 respectively.  From 2002 to 2016, he was employed in the roles of Research Fellow, Lecturer, and Deputy Head of the School of Electrical and Computer Engineering at RMIT University.  He has published around 180 research articles; including 1 book, 4 book chapters, and over 70 journal papers.  His research interests include antennas, metamaterials, and Frequency Selective Surfaces (FSS) at RF, microwave, millimeter-wave and THz frequencies; the integration of antennas and RF devices with flexible, stretchable and composite materials using novel micro/nano-fabrication technologies; and electromagnetic sensing (strain, partial discharge, etc.) and localization.  He is currently an Associate Professor in the School of Engineering at RMIT University.  A/Prof Rowe previously received the Vice Chancellor’s Award for the most outstanding research performance by an early career researcher.  He is currently an Associate Editor of the IET Microwaves, Antennas and Propagation Journal.

Abstract

A metasurface-loaded lens situated in front of an open ended rectangular waveguide is presented as an alternative to a horn antenna operating in the frequency range from 9.5 GHz to 10.5 GHz. A periodic array of single-layer unit cells is utilized to construct the metasurface, which is backed by a dielectric sphere in front of a waveguide feed. The spherical dielectric and metasurface collectively form the overall lensing structure. The lens exhibits a directive gain that is approximately 5.5 dB higher than a standard horn antenna, whilst occupying 20% less physical space.

Biography

Zahriladha ZAKARIA was born in Johor, Malaysia. He received the B. Eng. and M. Eng. in Electrical and Electronic Engineering from the Universiti Teknologi Malaysia in 1998 and 2004 respectively, and the PhD degree in Electrical & Electronic Engineering from The University of Leeds, United Kingdom in 2010. From 1998 to 2002, he was with STMicroelectronics, Malaysia where he worked as Product Engineer. He is currently a Professor at Microwave Research Group (MRG), Faculty of Electronic & Computer Engineering, University Teknikal Malaysia Melaka (UTeM), where he teaches Microwave Engineering, Antenna and Propagation, Electronic System, Communication Principles, Wireless Communications and Signal Processing. His research interests include RF/Microwave and Communication Engineering.

Abstract

This paper presents a high efficiency Doherty power amplifier (DPA) for sub-6GHz 5G base station applications. A modified asymmetrical approach based on augmentation of asymmetrical drain bias and uneven power divider is proposed for enhancing output power back-off efficiency and compensating for the gain reduction issue associated with asymmetrical drain bias DPA. Simulation results show a drain efficiency of 43.2-52.4% at 10 dB output power back-off over the frequency band of 3.4-3.6 GHz.

Biography

Mohammad Faiz Liew Abdullah received BSc (Hons) in Electrical Engineering (Communication) in 1997, Dip Education in 1999 and MEng by research in Optical Fiber Communication in 2000 from University of Technology Malaysia (UTM). He completed his PhD in August 2007 from The University of Warwick, United Kingdom in the area Wireless Optical Communication Engineering. He started his career as a lecturer at Polytechnic Seberang Prai (PSP) in 1999 and was transferred to UTHM in 2000 (formerly known as PLSP). At present he is a Professor in the Department of Electronics Engineering, Faculty of Electrical & Electronic Engineering and Senate Member University Tun Hussein Onn Malaysia (UTHM). He had over 22 years’ experience of teaching in higher education, which involved the subject Optical Fiber Communication, Advanced Optical Communication, Advanced Digital Signal Processing and etc. He is currently supervising Seven Postgraduate Student, where Nine PhD student has graduated. He is a Senior Member of IEEE, Charter Engineer (CEng) and Senior Member of IET.

Abstract

Recent years there is an increased demand for high-speed train (HSR) services. Consequently, onboard high-speed internet access needs to increase as passengers travel to and from work, therefore introducing new challenges and demand in delivering a seamless internet connection on-board fast-moving trains. Free Space Optical (FSO) Communications technology promises a bright future for various applications, due to its cost-effectiveness, ease of deployment, and huge unregulated bandwidth, which gives it an edge over contemporary technologies. However, due to lack of significant research on FSO links for railway communications, this paper looks into the single curved tracks mathematical models for FSO Ground-to-train (G2T-FSO) links proposed to overcome this issue and satisfy increased demand. Performance evaluation has been conducted in terms of geometrical properties were assessed in terms of divergence angle, geometrical loss, and theoretical received power using MATLAB®. The simulation results show significant effects of geometrical loss when the track curve length is more than 2m towards link performances.

Biography

Professor Ir Dr. Badrul Hisham bin Ahmad. Currently he is a Professor of Microwave Engineering in Universiti Teknikal Malaysia Melaka since 2018. He is received his PhD in Microwave Engineering from University of Leeds, UK. He received his M.Sc. in Electrical, Electronics & System Engineering from UKM, Malaysia. He earned his B.Eng. in Electronics, Communication Engineering from University of Leeds, UK. His research area(s) in Microwave Filters, Dielectric Resonators, Antennas – Switches – DG. He is also an active researcher with a good record of accomplishment with a number of research projects in RF and Microwave Engineering. He has published more than 200 journals and conference proceedings. He is a Senior Member of IEEE and a member of International Steering Committee of Asia Pacific Microwave Conferences. He is the General Chair of Asia Pacific Microwave Conference 2017.

Abstract

This paper presents a review about the design and development of matched band-stop filter using lumped-element. It is a compilation of band-stop filter design using lumped-element in order to investigate the effectiveness of lumped-element. A lumped-element device is a passive device whose size is significantly less than the operating wavelength in any dimension, resulting in minimum phase shift between the input and output connections. Based on the reviews, it can be concluded that lumped-element have the advantage such as smaller in size since no physically long transmission line. Therefore, accurate mutual inductance between two resonators is not required.

Biodata

Current Position

Head of Telkom University Internet of Things of Things Research Center.

Head of Satellite Com. & Radar Lab. Electrical Engineering Faculty, Telkom University

Office : FTE Telkom University. Jl. Telekomunikasi. Dayeuhkolot, Bandung, 40257, Indonesia.

Email  : pramuditaadya@telkomuniversity.ac.id  

Research interests

Antenna theory and design for telecommunication and radar, electromagnetics and wave application, and radar system for contactless sensor.

Abstract

Small displacement detection has found many applications in numerous field such as, in structure health monitoring, medical, human to machine interface and disaster management. Small displacement in a large structure, chest or abdominal wall in human vital sign, motion hand gesture and in slope location, were became important data that need to obtain for many purposes. Radar technology is potentially implement for detecting the small displacement in many areas that previously mention with a feature of non-contact operation and multiple points detection. However, improvement of some techniques in radar system is needed to overcome resolution problem in detecting the small displacement. In this paper, the implementation of Frequency Modulated Continuous Wave Radar (FMCW) for small displacement measurement in several field is discussed and some experiments that shown in this paper demonstrate the radar system as a candidate of suitable measurement method in several aforementioned fields

Biograhy

Prof. Dr Alyani Ismail received her Bachelor of Engineering in Electronic and Information Systems Engineering from the University of Huddersfield, UK. She obtained her MSc in Computer, Communication and Human-Centred Systems from the University of Birmingham, UK and PhD in Electronics Engineering also from the University of Birmingham. She is currently a professor at the Department of Computer and Communication Systems Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM). She has been appointed to various administrative positions including the Deputy Dean (Academic), Faculty of Engineering from 2019 – 2021,  Head of Department in 2010 to 2012 before she was appointed as the Deputy Director (Innovation in Teaching and Learning) at the Centre for Academic Development (CADe), UPM. Alyani had been appointed by the Ministry of Higher Education Malaysia starting January 2017 until 2018 as the Chair for Malaysia E-Learning Council for Public Universities (MEIPTA) and also the Chair for Working Committee for Malaysia MOOC. She is also a Master Trainer for Massive Open Online Course (MOOC) Instructional Design, E-Learning Design, Problem-Based Learning and Outcome Based Education. Dr Alyani is an active member of IEEE and she served as an Executive Committee for IEEE AP/MTT/EMC Chapter at national level. Alyani has published more than 300 publications in the form of conference papers, journal articles, books, and chapters in books and others in the area of Communication Engineering, as well as Teaching and Learning. In terms of quality of publication, 99% of the total journal articles are cited journals with high impact ranging from Q1 – Q4 rank journals (Clarivate Analytics). According to Scopus data, Alyani’s publication in her area of expertise have been referenced and cited by more than 51 countries, among top citations from China, India, Taiwan, United States and South Korea, as well as top universities in the world. Her research has impacted the international scientific community in general. Her Scopus h-index is 21 (as of November 2021). Not only that, she has also involved in publishing book chapters with international publishers, as well as writing national and international policy documents. Alyani’s latest involvement in publishing is as a Chief Editor for Malaysia MOOC The Journey book under the Ministry of Education, published in 2019. In recognition of her contributions in research, Alyani has received various awards; one of them is the Young Excellent Researcher Award for 2010 by the university, Excellent Innovation Award, Science, Technology and Innovation Festival of Selangor at state level, Top 30 of the Outstanding Young Malaysian Award at national level. She had participated in various competitions locally and internationally and won medals for her projects. She has also appeared live on TV interviews such as Astro Awani, RTM, TV3 and NTV7 regarding satellite communications in the search for the missing plane, MH370. Her latest research is in the field of Microwave Devices for 5G communication, Learning Space and Digital Education.

Abstract

A new high directivity all-metal helix antenna design for UWB THz radio communication is presented in this paper. The structure is based on three dimensional high aspect ratio helix antenna in order to achieve high directivity. The design is at early stage using full 3D EM simulator to analyze the performance of the suggested antenna structure. A fractional bandwidth of 68.10% covering 0.52-1.057 THz band was achieved for the structure. Simulation results show that at 0.95 THz, the maximum directivity and radiation efficiency are 13.4 dBi and 0.9455 respectively. Simulation results display improvements in directivity (1.3 dBi increase) and bandwidth (2.7% increase) in comparison with other related works. This high directivity antenna design is a good candidate for UWB THz radio communication.

Biography

PROF HIMDI MOHAMED received the Ph.D. degree in signal processing and telecommunications from the University of Rennes 1, France, in 1990. Since 2003, he has been a Professor with the University of Rennes 1, and the Head of the High Frequency and Antenna Department, IETR, in 2013. He has authored or coauthored 141 journal articles and over 280 papers in conference proceedings. He has also coauthored nine book chapters. He holds 46 patents. His research interests include passive and active millimeter-wave antennas, development of new architectures of antenna arrays, and new three-dimensional (3-D) antenna technologies. He was a Laureate of the 2d National Competition for the Creation of Enterprises in Innovative Technologies, in 2000, (Ministry of Industry and Education). He received the JEC-AWARD at Paris on Pure composite material antenna embedded into a motorhome roof for the Digital Terrestrial Television reception, in March 2015.

Abstract

Two new different Reconfigurable slotted leaky-wave antennas (LWA) based on a substrate integrated waveguide (SIW) for fixed frequency beam-scanning capability are proposed in this paper. To improve the structures compactness, these designs are based on central rectangular slots located at the wide face, the first solution presents a feeding method by associated SIW holes via coplanar lines (CPL), on the other hand, the second feeding solution is provided by associated coupling with plated-through holes (PTH). Each feeder (CPL or PTH) is loaded with a pin diode to achieve the radiation angle scanning from -33° to +33° as an electronically controlled steerable SIW antennas for 25 GHz and 27 GHz.

Biography

Eng-Hock Lim was born in Malaysia. He received the B.Sc. degree in electrical engineering from National Taiwan Ocean University in 1997, the M.Eng. degree in electrical and electronic engineering from Nanyang Technological University in 2000, and the Ph.D. degree in electronic engineering from the City University of Hong Kong in 2007. He is currently a Professor with Universiti Tunku Abdul Rahman (UTAR). He was also the Founding Chair of the IEEE Malaysia Council on RFID. He served as an Associate Editor of the IEEE Transactions on Antennas and Propagation from 2013 to 2016. He is now serving as the Associate Editor of the IEEE Journal of Radio Frequency Identification. Since April 2021, he has been a Distinguished Lecturer of the IEEE Council on RFID. He is a Fellow of the ASEAN Academy of Engineering and Technology. His current research interests include RFID antennas, smart and re-configurable antennas, and multifunctional antennas.

Abstract

A hybrid dipole-loop antenna, which is constructed by connecting a dipole with a loop, is proposed for designing a compact metal-mountable RFID tag. Here, a pair of dipole arms are closely integrated with a rectangular loop for achieving a compact size of 60 mm × 30 mm × 2 mm. Also, a rectangular patch is tactfully placed at the center of the loop for tuning down the tag resonant frequency to the desired UHF passband. Conjugate impedance match is achievable between the antenna and the chip by tuning the dimensions of the dipole arm and the rectangular patch. The proposed tag antenna can achieve a realized gain of -1.182 dBi in the boresight direction, which is equivalent to a read range of 15.3 m, as estimated using the Friis’ transmission equation.

Biography

Omar Ramahi is an Electrical and Computer Engineering Professor at the University of Waterloo. Professor Ramahi’s research interests include radiating systems, renewable energy technology, biomedical applications of electromagnetic waves and fields, electromagnetic compatibility and interference, metamaterials and its engineering applications, and material measurements. In addition to his research, he co-founded Applied Electromagnetic Technology, LLC. Professor Ramahi has received numerous awards as a result of his extensive research and teaching capabilities. He was recognized for his graduate research work with the 2010 University of Waterloo Award for Excellence in Graduate Supervision. Additionally, Professor Ramahi was awarded the IEEE Electromagnetic Compatibility Society Technical Achievement Award in 2012. Professor Ramahi is an elected IEEE Fellow.Professor Ramahi has written over 300 journal and conference papers on electromagnetic phenomena and computational techniques. EMI/EMC Computational Modeling Handbook is one of the notable books that Professor Ramahi has co-authored.

Abstract

This paper proposes a novel microwave thermography hybrid technique for early breast cancer detection. This modality is based on the differences in microwave propagation through the breast due to the variation in the electrical properties between healthy and malignant breast tissue. The proposed work demonstrates the capability of detecting the presence of a tumor inside an extremely dense breast. Supporting the system with the convolution neural network elevates the detection performance and extracts the tumor location and size.

Biography

Haruichi Kanaya was born in Yamaguchi, Japan, in 1967. He received the B.S. (Physics) degree from Yamaguchi University in 1990. In 1992 and 1994, he received the Master’s Degree and Ph.D. in Engineering from Department of Applied Science, Faculty of Engineering, Kyushu University, Japan. In 1994, he became a Research Fellow (PD) of Japan Society for the Promotion of Science Japan. From 1994 to 1999 he joined the Department of Electrical and Electronic Engineering, Faculty of Engineering, Yamaguchi University, Yamaguchi, Japan as a Research Associate. In 1998, he was a visiting scholar in the Massachusetts Institute of Technology (MIT), USA. He is currently a Professor in the Department of Electronics, Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka, Japan. He is also a Professor in System LSI Research center, Research Institute of Superconductor Science and Systems, Research Center for Advanced Biomechanics and a Vice Director in Center for Japan-Egypt Cooperation in Science and Technology (E-UST Center), Kyushu University, Fukuoka, Japan. Dr. Kanaya is a senior member of the Institute of Electrical and Electronics Engineers (IEEE), USA and The Institute of Electronics, Information and Communication Engineers (IEICE), Japan. His research activities include superconducting microwave devices, RF CMOS System LSI, antennas for wide band or high speed telecommunication systems and energy harvesting systems from ambient sources. He has more than 400 technical papers in various international journals, conferences and symposia.

Abstract

This paper presents the design and fabrication of the RF energy harvesting circuit which obtain more than 2 V DC output from the RF power injected from the 900 MHz band RF ID tag transmitter. Our proposed RF energy harvester is composed of a planar antenna, impedance matching circuit and stacked rectifiers. By using this output power, the data of the surface temperature and humidity on the human body are transmitted to the smart phone or laptop PC through the BLE (Bluetooth low energy) module without any batteries.

Biography

Prof. Dr. Ir. Fitri Yuli Zulkifli, ST., MSc (S’06; M’09; SM’13) is a Professor of microwave antenna engineering in the Electrical Engineering Department, Faculty of Engineering, Universitas Indonesia. She received her Bachelor and PhD degrees in Telecommunications Engineering from Universitas Indonesia and MSc degree in Telecommunication and Information Technology Department, University of Karlsruhe, Germany. Her research interests are Antenna, Propagation, Microwave and in the field of Electromagnetic. She joined the Antenna Propagation and Microwave Research Group (AMRG) UI since 1997 and has become lecturer since 1998. In 2021 the Laboratory Prof Fitri Yuli Zulkifli was established granted from faculty of engineering UI. She has published more than 200 papers in international/national journals and conference proceedings and has been involved in more than 40 granted researches. With all of here activities, therefore in 2011 she was granted “Best Lecturer Award” (dosen berprestasi) from Universitas Indonesia and achieved 4^th place “Best Lecturer Award” from Indonesia in the same year. She is involved in many teamwork activities and also involved as organizing committee in many seminars and workshops. She has been the IEEE joint chapter chair of MTT/AP and in 2010 from 2011-2012. In 2013-2016 she was coordinator technical activity in IEEE Indonesia section as well as executive committee of joint chapter MTT/AP-S. In 2017-2018 she was the IEEE Indonesia Section Chair and 2019-2020 she is the head of advisory board for IEEE Indonesia section. Since 2019-until now she is the Committee Member for R10 Conference and Technical Seminar and Conference Quality Management. She also is the team member of 5G task force for Ministry of Communications and Information (Kominfo).

Abstract:

Defected ground structure (DGS) is a technique for increasing antenna gain by changing the shape of the ground, without the need to increase the dimensions of the antenna. However, the application of the DGS technique is generally carried out using an inductive approach which requires high computational resources and time consuming for the design process. Therefore, to speed up the DGS design process, machine learning methods, especially genetic algorithms, is used. This study proposes a patch antenna DGS optimization model to increase the patch antenna gain using genetic algorithm so that the DGS design time can be shortened and the design process efficiency can be increased. Based on the simulation results, the DGS design without genetic algorithm is able to increase the bandwidth and gain of the patch antenna by 8.91% and 3.92%, respectively. Meanwhile, the DGS design optimized by genetic algorithm is able to increase the bandwidth and gain of the patch antenna by 84% and 50.86%, respectively. In addition, shorter optimization time is achieved by using genetic algorithm.

Biography

Mohd Faizal Jamlos received Ph.D. in 2010 from Universiti Teknologi Malaysia, Johor, Malaysia and M.Sc. in 2008 from University of Adelaide, South Australia, Australia. Previously, he obtained his first degree from Universiti Malaysia Perlis, Malaysia, with Honours, in Computer Engineering in 2006. He is currently a full Professor in College of Engineering, Universiti Malaysia Pahang (UMP). He has co-authored some 250 scientific publications in peer-reviewed journals and conferences. His research interests are THz sensing, Internet-of-Things (IoT), Metamaterials, Data analytics, On-platform antennas and microwave circuitry. He is project leader of more than RM 3 Million in total funded by industries, government and university. He also active in providing consultations and trainings on Test Measurement system, Networking and IoT to various companies and universities. He is a practice professional Engineer of Board of Engineers Malaysia (BEM), Senior Member of IEEE, a National Medical Researcher (NMRR) and Corporate Member of Institute Engineers Malaysia (MIEM).

Abstract

Flexible antennas are important components in addressing a growing number of V2X applications. To mitigate vehicle-shaped effects, a flexible and compact circularly polarized (CP) Dedicated Short Range Communication (DSRC) antenna is designed based on a sequential phase (SP) feeding network and sequentially rotated (SR) elements. The antenna is printed on polyethylene terephthalate (PET) substrate by using a PCB printer using silver nanoparticles (AgNPs) ink. The fabricated antenna has a dimension of 27×27×1 mm3 which is printed precisely to radiate in CP with an axial ratio of 1.34 and gain between 5.3 and 5.7 dBi. The printed antenna’s precision is proven to operate effectively from 5.85 to 5.925 GHz, with a fractional impedance bandwidth (FBW) of 1.27%.

Biography

Kaharudin Dimyati received his BEng degree in Electrical Engineering from Universiti Malaya in 1992 and a PhD degree in University of Wales Swansea, United Kingdom in 1996. He is currently a professor at the Faculty of Engineering, Universiti Malaya. His research interest includes Wireless Communications, Optical Communications and Disaster Management. He has published around 150 articles in journals and heavily involved in research and supervision of postgraduate students where currently he has 10 ongoing PhD students and 1 ongoing Master by research students. He has examined more than 100 PhD students as external examiner, locally and internationally. He teaches undergraduate and postgraduate courses. He is a Member of IET and IEEE. He is a Professional Engineer (Ir) with Board of Engineers Malaysia (BEM), a Professional Technologist (Ts) with the Malaysia Board of Technologies (MBOT) and a Chartered Engineer (CEng) with Engineering Council UK (ECUK).

Abstract

Fog radio access network (F-RAN) is an emergent technology that provides a cloud-like services to the end nodes (ENs) at the edge of the network. Reducing the transmission delay is of a great importance to boost the performance of FRAN, which can be achieved by optimizing the probability of FNs. In this context, this paper proposes a framework to obtain the optimum the probability of FNs that minimizes the transmission delay in a finite F-RAN. The proposed approach shows that the optimum probability of FNs is the real root of a polynomial equation of a degree determined by the path loss exponent (PLE). The results show that optimizing the probability of FNs can significantly reduce the transmission delay. Moreover it shows that the optimum probability of FNs decreases with the PLE and number of deployed nodes.

Biography

Jafri Bin Din received his Bachelor of Science in Electrical Engineering from Tri State University, Indiana, USA in 1988 and his PhD from Universiti Teknologi Malaysia (UTM) in 1997. He has been with UTM as Assistant Lecturer, Lecturer and Associate Professor from 1989 to 2018. Since August, 2018, he has been appointed as Professor of Radio Wave Propagation at School of Electrical Engineering, UTM. He has been Head of Department, Under Graduate Academic Manager and Deputy Dean (Development) in Faculty of Electrical Engineering, UTM. Currently, he is the Director of Wireless Communication Centre at UTM. He has been actively involved in research activities in the fields of radio wave propagation, satellite propagation and communications, High Altitude Platform Station (HAPS), Weather Radar, and sound techniques for fisheries industry. He has graduated 14 PhD candidates and currently supervising 4 PhD candidates in the field of radio wave propagation. Since July 2015, he participates in a Ka-band propagation measurement campaign in close collaboration with European Space Agency, Joanneum Research, Austria and Universiti Tun Hussein Onn Malaysia. He has authored and coauthored more than 100 research articles in international journals and international conference proceedings.

Abstract

This work investigates the effects of stratiform and convective raindrop size distributions (DSDs) on radio waves propagating through the atmosphere and their diurnal variation. The specific attenuation due to precipitation is derived for frequencies at Ka and Q bands based on three years of disdrometer data collected in Kuala Lumpur, Malaysia. Separate analyses are carried out for stratiform and convective events, classified according to their peak rain rate value and grouped into three different periods of the day, namely morning, evening and night. DSD and rain rate data are employed to directly derive specific attenuation values by means of the point matching method, as well as to determine the local power law coefficients of the rain rate to specific attenuation relationship. The obtained results suggest that radio communication engineers should carefully consider the effects of the diurnal variation of the DSD, especially for 5G terrestrial applications as well as Satellite link operating at Ka band and above at the location of interest.