• Meta-Atom Materials for RF Microwave Substrates Using Additive Manufacturing (3D Printing)

    • Prof Yiannis Vardaxoglou
      • Loughborough University, UK
    • Abstract
      • Metamaterials which are essentially periodic structures with metallic/dielectric and/or magnetic inclusions in a host material, produce truly novel electromagnetic (EM) properties, such as artificial dielectrics and magnetics, lenses etc. These can be in planar form to represent a bespoke RF/microwave substrate, as well as spherical formations for dielectric lenses (e.g. Luneburg) and imaging horn antennas. Placing these novel structures into the complex electronic design world such as multilayer circuits or radiated antennas will open up a new way of designing and manufacturing electronics, aiming towards a single process function from CAD to manufacture. The focus of this paper is on the generic synthesis of metamaterials, by placing these so called meta-atom inclusions in an ordered and systematic manner, analogous to compiling the ‘periodic table’ of metamaterials. The inclusions are of the order of microscale dimensions clustered together to form unique patterns. This opens up a plethora of new structures to be formed which do not currently exist. These will not only will aid in improving existing applications but it will break existing boundaries for new applications to be formed. Depending on the ability to make these in small, medium and large scale, the frequencies span from RF/Microware to THz. The impetus of this research is to make a step change in current application of metamaterials and a discernible improvement to the communications link through increasing the capacity for more data improving functionality and productivity. 
      • We will present engineered structures with various manufacturing technologies using conventional photolithography and additive manufacturing (3D printing).
    • Biography
      • Yiannis C. Vardaxoglou received the BSc degree in Mathematics (Mathematical Physics) in 1981 from the University of Kent at Canterbury and then at the same institution he researched towards a PhD, which he received in 1985. He joined Loughborough University of Technology in 1988 as a Lecturer, was promoted to Senior Lecturer in January 1992 and in 1998 he was awarded a personal chair. He was the Head and the first Dean of the Electronic, Electrical and Systems Engineering School at Loughborough University from 2006 to 2012. He established the Wireless Communications Research (WiCR) group at Loughborough University and founded the Centre for Mobile Communications Research. He has pioneered research, design and development of frequency selective surfaces (FSS) for communication systems, Metamaterials and low SAR antennas for mobile telephony and has commercially exploited a number of his innovations. He has served as a consultant to various industries, holds 5 patents and is the Technical Director/Founder of Antrum Ltd (a University spinout company). He has attracted research funding from industry and has been awarded 20 EPSRC/EU research grants. He has published over 250 refereed journals and conference proceeding papers and has written a book on FSS. He is past the Chairman of the Executive Committee of the IET’s Antennas and Propagation Professional Network in the UK and he chaired for 5 years the IEEE’s distinguish lecturer program of the Antennas and Propagation Society. He is a member of the EPSRC College in ICT and chaired the Executive Committee of Metamorphose, the EU FP6 NoE on Metamaterials. He was the General Chair of EuCAP’2007. He has chaired numerous IEE/IET events and has been in the Steering Committee of the IEE International Conferences on Antennas and Propagation and EuCAP’2006. He founded and is the Series Chair of the Loughborough Antennas and Propagation Conferences (LAPC), which has been running since 2005. He is a Chartered Engineer, Fellow of the Institution of Engineering and Technology (FIET), Fellow of the Royal Academy of Engineering (FREng) and fellow of the Institute of Electrical and Electronics Engineers (FIEEE).

 

  • Broadband 3D metamaterial carpet cloak

    • Prof Hongsheng Chen
      • Distinguished Professor The Electromagnetics Academy at Zhejiang University College of Information Science & Electronic Engineering State Key Laboratory for Modern Optical Instrumentation, China
    • Abstract
      • We propose and demonstrate ultra-broadband three dimensional carpet cloaking for full polarization. Based on rigorous nonlinear transformation optics, we obtain a group of inhomogeneous constitute parameters. A non-resonant metamaterial, which exhibits broadband magnetic and electric anisotropy with little dispersion, is used as a main building block in the cloak design. Nearly perfect cloaking performance is confirmed over a broad bandwidth with frequency scanning measurement. In particular, the experimental result shows that phase is well preserved by the cloak.
    • Biography
      • Dr. Hongsheng Chen is a Chang Jiang Scholar Distinguished Professor in the Electromagnetics Academy at Zhejiang University in Hangzhou, Zhejiang, China. He received the B.S. degree in 2000, and Ph.D. degree in 2005, from Zhejiang University, both in electrical engineering.
      • In 2005, Chen became an Assistant Professor at Zhejiang University; In 2007 an Associate Professor; and in 2011 a Full Professor. In 2014, he was honored with the distinguished "Chang Jiang Scholar" professorship by the Chinese Ministry of Education. He was a Visiting Scientist (2006-2008), and a Visting Professor (2013-2014) with the Research Laboratory of Electronics at Massachusetts Institute of Technology, USA. His current research interests are in the areas of metamaterials, antennas, invisibility cloaking, transformation optics, and theoretical and numerical methods of electromagnetics. He is the coauthor of more than 100 international refereed journal papers. His works have been highlighted by many scientific magazines and public media, including Nature, Scientific American, MIT Technology Review, The Guardian, Physorg, and so on. He serves as a regular reviewer of many international journals on electromagnetics, physics, optics, and electrical engineering. He serves on the Topical Editor of Journal of Optics, the Editorial Board of the Nature's Scientific Reports, Progress in Electromagnetics Research, and Journal of Electromagnetic Waves and Applications.
      • Dr. Chen was a recipient of National Excellent Doctoral Dissertation Award in China (2008), the Zhejiang Provincial Outstanding Youth Foundation (2008), the National Youth Top-notch Talent Support Program in China (2012), the New Century Excellent Talents in University of China (2012), and the National Science Foundation for Excellent Young Scholars of China (2013). His research work on cloak was selected in Science Development Report as one of the representative achievements of Chinese Scientists in 2007.

 

  • Enhancing the sports experience: Electromagnetics for Fun, Profit & Audience Engagement

    • Prof David Thiel 
      • Deputy Head of School (Research), Griffith School of Engineering, Griffith University, Australia
    • Abstract
      • A majority of Australians, regardless of age, ethnic background or wealth, get seriously interested in elite sport during major international events (the Olympic Games, World Championships, Test series, Grand Slams, etc) through to developmental child activities in very early years. Sophisticated wireless systems and other electronics are now in the affordable mass consumer market through smart phone apps or fashionable sports bands. Griffith University's SABEL Laboratories in the Engineering School continue to develop electronic systems for sports performance monitoring based on low cost, wearable technologies. Player activity, player position, player physiology and player fatigue are of great interest to the viewing public and the coaching staff as well as the athletes themselves. There is much to be gained from this new technology. This talk presents an overview of radio communications and sensing systems used in training and competition and the benefits of technologies to a sports obsessed public.
    • Biography
      • Professor Thiel has active research interests in the fields of communications (smart antennas, wireless sensor networks, antenna measurements, RFID, antennas in difficult environments), electronics packaging (Circuits in Plastic, RoHS, WEEE compliance), electromagnetic modelling (Impedance method, inverse problems). His work has direct applications in human monitoring (elite athletes, team sports, the elderly and infirmed) and electromagnetic geophysics applications (subsurface modelling and interpretation of impedance data). He is Director for the Centre for Wireless Monitoring (CWMA) and Applications at Griffith University.
      • He has made contributions to the study of electromagnetic precursors for earthquakes, surface based electromagnetic geophysics, odour sensing robots, smart antennas, numerical modelling for earth propagation problems, elite athlete monitoring and artificial dielectrics.
      • Professor Thiel is currently Chair of the IEEE Wave Propagation Standards Committee, and a member of the IEEE Antennas Standards Committee. He is a Griffith University representative for StEP (Solving the Electronic Waste Problem) in Task Force 2: ReDesign.

 

  • Reconfigurable Magneto-electric Dipole Antennas

    • Prof Kwai Man Luk
      • City University of Hong Kong
    • Abstract
      • With the rapid development of wireless communications in the past decades, various new antenna techniques are investigated to meet the requirements of fast developing wireless communication systems. By adapting the operating frequency or the radiation characteristics, reconfigurable antennas can cope with the changing system requirements or environmental conditions. Therefore, reconfigurable antennas can significantly improve the efficiency of spectrum usage and also provide additional levels of functionality for the systems.Various antenna structures have been utilized for the design of reconfigurable antennas, such as patch antennas, slot antennas, monopole and dipole antennas, etc. However, only a few of these designs can achieve good unidirectional radiation fulfilling the requirements of antennas for some fixed infrastructures, such as base stations. Recently, a new class of wideband antennas designated as the magneto-electric dipoles was proposed. These antennas were designed based on the complementary antenna concept. The basic structure consists of a planar electric dipole and a shorted quarter-wave patch antenna. These novel antenna elements have many attractive features, including wide impedance bandwidth, low cross polarization, low back radiation, nearly identical radiations in the two principal planes, stable radiation pattern, and constant antenna gain over the operating frequency range. Considering their excellent performances, the magneto-electric dipole antennas are very competitive candidates for reconfigurable unidirectional antennas. In this talk, the latest development of the reconfigurable magneto-electric dipole antennas will be presented, including frequency reconfigurable and beamwidth reconfigurable designs.
    • Biography
      • Prof. Kwai-Man Luk was born and educated in Hong Kong. He received the B.Sc.(Eng.) and Ph.D. degrees in electrical engineering from The University of Hong Kong in 1981 and 1985, respectively.
      • He joined the Department of Electronic Engineering at City University of Hong Kong in 1985 as a Lecturer. Two years later, he moved to the Department of Electronic Engineering at The Chinese University of Hong Kong where he spent four years. Professor Luk returned to the City University of Hong Kong in 1992, and he is currently Chair Professor of Electronic Engineering. He served as Head of Department of Electronic Engineering from August 2004 to July 2010. His recent research interests include design of patch, planar and dielectric resonator antennas, microwave and antenna measurements, and computational electromagnetics. He is the author of three books, 9 research book chapters, over 260 journal papers and 200 conference papers. He was awarded 2 US and more than 10 PRC patents on the design of a wideband patch antenna with an L-shaped probe.
      • He was the Technical Program Chairperson of the 1997 Progress in Electromagnetics Research Symposium (PIERS 1997) , and the General Vice-Chairperson of the 1997 and 2008 Asia-Pacific Microwave Conference, and the General Chairman of the 2006 IEEE Region Ten Conference.
      • Professor Luk received the Japan Microwave Prize, at the 1994 Asia Pacific Microwave Conference held in Chiba in December 1994 and the Best Paper Award at the 2008 International Symposium on Antennas and Propagation held in Taipei in October 2008. He was awarded the very competitive 2000 Croucher Foundation Senior Research Fellowship in Hong Kong. Professor Luk is a Fellow of the Chinese Institute of Electronics, PRC, a Fellow of the Institution of Engineering and Technology, UK, a Fellow of the Institute of Electrical and Electronics Engineers, USA and a Fellow of the Electromagnetics Academy, USA.

 

  • Metamaterial-Inspired Electrically Small Antennas Integrated Into Structural Materials

    • Prof Rick Ziolkopwski
      • University of Technology Sydney & University of Arizona
    • Abstract
      • An electrically small Egyptian axe dipole antenna has been designed and integrated into a glass fiber reinforced polymer (GFRP), a structural material now commonly found in most mobile platforms. The integration is accomplished by sewing the antenna with conductive threads into the GFRP prepreg and accounting for dimensional variations after curing under high temperature and pressure in an autoclave. The simulated and measured reflection coefficient values and radiated field patterns are in good agreement. These comparisons demonstrate that the antenna is nearly completely matched to the source without any matching circuit and radiates as an electric dipole.
    • Biography
      • Richard W. Ziolkowski (ScB'74-M'75-PhD'80) received the Sc.B. degree in physics magna cum laude with honors from Brown University in 1974, the M.S. and Ph.D. degrees in physics from the University of Illinois at Urbana-Champaign in 1975 and 1980, respectively. He was a member of the Engineering Research Division at the Lawrence Livermore National Laboratory from 1981 to 1990 and served as the leader of the Computational Electronics and Electromagnetics Thrust Area for the Engineering Directorate from 1984 to 1990. Prof. Ziolkowski joined the Department of Electrical and Computer Engineering at the University of Arizona as an Associate Professor in 1990, and was promoted to Full Professor in 1996. He was selected by the Faculty to serve as the Kenneth Von Behren Chaired Professor for 2003-2005. He currently is serving as the Litton Industries John M. Leonis Distinguished Professor. He holds a joint appointment with the College of Optical Sciences at the University of Arizona. His research interests include the application of new mathematical and numerical methods to linear and nonlinear problems dealing with the interaction of acoustic and electromagnetic waves with complex media, metamaterials, and realistic structures.
      • Prof. Ziolkowski is a member of Tau Beta Pi, Sigma Xi, Phi Kappa Phi, the Institute of Electrical and Electronics Engineers (IEEE), the American Physical Society, the Optical Society of America, and Commissions B (Fields and Waves) and D (Electronics and Photonics) of URSI (International Union of Radio Science). He is an IEEE Fellow. He has served as a member of the IEEE Antennas and Propagation Society (AP-S) Administrative Committee (ADCOM). He served as the IEEE AP-S Vice President in 2004 and as President in 2005. He served as the Vice Chairman of the 1989 IEEE AP-S and URSI Symposium in San Jose, and as the Technical Program Chairperson for the 1998 IEEE Conference on Electromagnetic Field Computation. He has served an Associate Editor for the IEEE Transactions on Antennas and Propagation. He was a Steering Committee Member for the 2004 ESA Antenna Technology Workshop on Innovative Periodic Antennas. He served as a co-Chair of the International Advisory Committee for the inaugural IEEE International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, IWAT2005. He has served as a member of the International Advisory Committees for IWAT 2006-2009 and for MAPE2005. He served as an Overseas Corresponding Member of the ISAP2007 Organizing Committee. He served as the Technical Program Committee Chair for the 2008 Metamaterials Congress in Pamplona, Spain. He was a Co-Guest Editor (with Prof. Nader Engheta) for the October 2003 IEEE AP Transactions Special Issue on Metamaterials. For the US URSI Society he served as Secretary and as Chairperson of the Technical Activities Committee for Commission B and as Secretary for Commission D.  He has served as a Member-at-Large of the U.S. National Committee (USNC) of URSI and is now serving as a member of the International Commission B Technical Activities Board.  He is a Fellow of the Optical Society of America. He was a Co-Guest Editor (with Prof. Kurt Oughstun) of a 1998 JOSA A special issue. He was a Co-Organizer (with Dr. Brent Little) of the Photonics Nanostructures Special Symposia at the 1998, 1999, 2000 OSA Integrated Photonics Research (IPR) Topical Meetings. He served as the Chair of the IPR sub-committee IV, Nanostructure Photonics, in 2001.
      • Prof. Ziolkowski was awarded the Tau Beta Pi Professor of the Year Award in 1993 and the IEEE and Eta Kappa Nu Outstanding Teaching Award in 1993 and 1998. He also holds the title of Sensei with a Nidan rank in Matsunoryu Goshin Jujitsu and a Nidan rank in Kajukenbo.

 

  • Metamaterial-Based Electromagnetic Space, Time and Spacetime Dispersion Eengineering

    • Prof Christophe Caloz
      • École Polytechnique de Montréal, Canada
    • Abstract
      • Everything in our universe occurs in space, time, and spacetime where space and time are interdependent. These concepts are therefore fundamental across all areas of human activities, including history, economy, philosophy, arts and sciences. The author believes systematic endeavours in manipulating waves in space, time and spacetime will bring about considerable opportunities towards the development of tomorrow's electromagnetic science and technology. Manipulation waves in space essentially consists in engineering their spatial frequency (k) spectrum, which may be performed using conventional electromagnetic structures, such as apertures, antennas, lenses, polarizers, photonic crystals, Talbot imagers, optical masks, etc. However, the frontiers of spatial dispersion engineering may be pushed far beyond the current state of the art, particularly using the novel concept of metasurfaces. The talk will present several innovations in this area, including magnetless nonreciprocal gyrotropy, generalized refraction, multiple wave transformation, multi-refringence, and orbital angular momentum multiplexing. In time, manipulating waves essentially consists in engineering their temporal frequency () spectrum, as partly done in ultrafast optics where oscillations are too fast to be handled by digital signal processors, and where real-time chirping and nonlinear materials and devices have therefore to be used instead. Such concepts have been little explored in electromagnetics, and may represent a solution to the exploding demand for faster and more reliable radio if sufficient progress is made. The author developed in his group metamaterial-inspired structures called phasers, which provide specifiable group delay versus frequency responses to perform unprecedented temporal dispersion engineering. The talk will present the related Radio Analog Signal Processing (R-ASP) concept and technology, and demonstrate a number of related applications, such as spectrum sniffing, real-time Fourier analysis, and dispersion code multiple access. Aforementioned concepts typically concern monochromatic spatial dispersion engineering and mono-directional temporal dispersion engineering. Combining the two aspects in simultaneous space and time dispersion engineering, as nature does it in rainbows and humans in holograms, will open up further horizons in electromagnetics processing. The talk will also address this area, first introducing the fundamental concept of temporal to spatial frequency mapping, and next describing a few recent applications, including real-time spectrogram analysis and two-dimensional mapping for the processing of ultrafast waves. Finally, novel concepts in electromagnetic spacetime discontinuities, where space and time are interdependent as in the theories of special and general relativity, will be introduced and discussed as a potential platform for future developments in electrodynamics.
    • Biography
      • Christophe Caloz received the Diplôme d’Ingénieur en Électricité and the Ph.D. degree from École Polytechnique Fédérale de Lausanne (EPFL), Switzerland, in 1995 and 2000, respectively. From 2001 to 2004, he was a Postdoctoral Research Fellow at the Microwave Electronics Laboratory, University of California at Los Angeles (UCLA). In June 2004, Dr. Caloz joined École Polytechnique of Montréal, where he is now a Full Professor, the holder of a Canada Research Chair (CRC) and the head of the Electromagnetics Research Group. He has authored and co-authored over 500 technical conference, letter and journal papers, 12 books and book chapters, and he holds several patents. His works have generated about 12,000 citations, and he is a Thomson Reuteurs Highly Cited Researcher. Dr. Caloz is a Member of the Microwave Theory and Techniques Society (MTT-S) Technical Committees MTT-15 (Microwave Field Theory) and MTT-25 (RF Nanotechnology), a Speaker of the MTT-15 Speaker Bureau, the Chair of the Commission D (Electronics and Photonics) of the Canadian Union de Radio Science Internationale (URSI) and an MTT-S representative at the IEEE Nanotechnology Council (NTC). In 2009, he co-founded the company ScisWave, which develops CRLH smart antenna solutions for WiFi. Dr. Caloz received several awards, including the UCLA Chancellor’s Award for Post-doctoral Research in 2004, the MTT-S Outstanding Young Engineer Award in 2007, the E.W.R. Steacie Memorial Fellowship in 2013, the Prix Urgel-Archambault in 2013, and many best paper awards with his students at international conferences. He has been an IEEE Fellow since 2010 and an IEEE Distinguished Lecturer for the Antennas and Propagation Society (AP-S) since 2014. He is currently also a Distinguished Adjunct Professor at King Abdulaziz University (KAU), Saudi Arabia. His research interests include all fields of theoretical, computational and technological electromagnetics, with strong emphasis on emergent and multidisciplinary topics, including particularly metamaterials, nanoelectromagnetics, exotic antenna systems and real-time radio.

 

  • Advanced Phased Arrays and Reflector Antennas for 21st Century Satellite Communication Payloads

    • Dr Sudhakar Rao
      • Northrop Grumman, USA
    • Abstract
      • 21st century has so far seen several new satellite services such as local-channel broadcast for direct broadcast satellite service (DBS), high capacity K/Ka-band personal communication satellite (PCS) service, hosted payloads, mobile satellite services using very large deployable reflectors, high power hybrid satellites etc. All these satellite services are driven by the operators need to reduce the cost of satellite and pack more capability into the satellite. Antenna sub-system design, mechanical packaging on the spacecraft, and RF performance become very critical for these satellites. This talk will cover recent developments in the areas of antenna systems for FSS, BSS, PCS, & MSS satellite communications. System requirements that drive the antenna designs will be presented initially with brief introduction to satellite communications. Phased array antenna and reflector antenna designs will be covered in this talk.
      • Advanced antenna system designs for contoured beams, multiple beams, and reconfigurable beams will be presented. Contoured beam antennas using dual-gridded reflectors, shaped single reflectors, and shaped Gregorian reflectors will discussed. The figure of merit of these antennas using gain-area-product (GAP) will be addressed. Multiple beam antenna (MBA) concepts and their advantages compared to conventional contoured beams will be introduced. Various designs of the MBA for DBS, PCS, and MSS services will be discussed along with practical examples. Recent advances in feed technology and reflector technology will be addressed and few examples. Advances in multi-band antennas covering multiple bands will be presented. Topics such as antenna designs for high capacity satellites, large deployable mesh reflector designs, low PIM designs, and power handling issues will be included. Introduction to remote sensing antennas with examples will be included in the talk. Advanced high power test methods for the satellite payloads will be addressed. Brief introductions to TT&C antennas, passive inter modulation products (PIM) and multipaction for satellite payloads will be given. Antenna test ranges and software tools required for test and design of 21st century satellite antennas will be presented. Future trends in the satellite antennas will be discussed. At the end of this talk, engineers will be exposed to typical requirements, designs, hardware, software, and test methods for various satellite antennas.
    • Biography
      • Dr. Rao became an IEEE Fellow in 2006 and a Fellow of IETE in 2009. He received several awards and recognitions that include 2002 Boeing’s Special Invention Award for series of patents on satellite antenna payloads, 2003 Boeings’ technical achievement award, Lockheed Martin’s Inventor of Technology award in 2005 & 2007, IEEE Benjamin Franklin Key Award in 2006, Delaware Valley Engineer of the Year in 2008, and Asian American Engineer of the year award in 2008. He received IEEE Judith Resnik Technical Field Award in 2009 for pioneering work in aerospace engineering. 
      • Sudhakar K. Rao received B.Tech degree in electronics & communications from Jawaharlal Nehru Technological University, Warangal in 1974, M.Tech in Radar Systems Engineering from Indian Institute of Technology, Kharagpur in 1976, and Ph. D in Electrical Engineering from Indian Institute of Technology, Madras in 1980. During the period 1976-1977 he worked as a Technical officer at Electronics Corporation of India Limited, Hyderabad on large reflector antennas for LOS and TRPO microwave links, and during the period 1980-1981 he worked in the Electronics and Radar Development Establishment, Bangalore as a Senior Scientist and developed phased array antennas for airborne applications. From 1996-2003 he worked as Chief Scientist/Technical Fellow at Boeing Satellite Systems and developed multiple beam antennas and reconfigurable beam payloads for commercial and military applications.. He is currently a Technical Fellow at Northrop Grumman Aerospace Systems, Redondo Beach, CA working on advanced antenna systems for space and aircraft applications. He authored over 160 technical papers and has 41 U.S patents. He co-edited three text book volumes on “Handbook of Reflector Antennas and Feed Systems” that are published in June 2013 by the Artech House.

 

  • Achieving Higher Speed, Lower Latency and a High Degree of Reliability - Research Challenges in Developing 5G for Mission Critical Machine Communications

    • Dr. David Soldani
      • Huawei
    • Abstract
      • He will describe a multitenant network and services vision and the most important 5G wireless, wireline and media enabling technologies, leveraging Software Defined Networking (SDN), Network Functions Virtualization (NFV), High Performance (HPC) and Mobile Edge Computing (MEC). Special focus will be plance on Mission Critical Machine Communications (MCC) and the main research challenges to achieve higher speed and lower latency with a high degree of reliability. Conclusions will be drawn on the main standardization activities and roadmap towards the IMT for 2020 and beyond.
    • Biography
      • David Soldani received a M.Sc. degree with maximum score and “cum laude approbatur” in Electronic Engineering from the University of Florence, Italy, in 1994; and a D.Sc. degree in technology with distinction from Aalto University, Finland, in 2006. In 2014, he was appointed Visiting Professor at the University of Surrey, UK. He is one of the top experts in multi-disciplinary, transformative frontier research. He has been active in the ICT field for more than 20 years, successfully working on 150+ R&D projects for 2-5G and contributing to 100+ quality deliverables: from strategic research and innovation to modeling, simulations, emulations and innovative proof of concepts with stakeholders.
      • Dr. Soldani is currently Vice President (VP) of Huawei European Research Centre (ERC) and Head of Central Research Institute (CRI) in Europe. Areas of his responsibility and expertise include, but not limited to: Future Wireless, Network, IoT and Multimedia Technologies. Dr. Soldani represents Huawei in the Board of the 5G Infrastructure Association, in Brussels, and Steering Board (SB) of NetWorld2020 European Technology Platform (ETP), in Europe.

 

  • MetaLine, MetaSpiral, and MetaHelical Antennas

    • Prof. Hisa-Matsu Nakano
      • Hosei University, Tokyo Japan
    • Abstract
      • Normally, electromagnetic properties in nature are right-handed. Antennas having this property are designated as natural antennas. On the other hand, antennas having electromagnetic properties that are not found in naturally occurring materials are designated as metamaterial-based antennas (simply referred to as metamaterial antennas).
      • This talk is composed of three chapters and discusses metamaterial-based antennas. Chapter 1 reveals that a metamaterial-based straight line antenna (MetaLine antenna) forms a linearly polarized (LP) beam that scans from the backward direction, through the broadside direction, to the forward direction (BBF scanning) with change in operating frequency. It is also revealed that the MetaLine can realize a circularly polarized (CP) BBF scanning beam. These BBF scanning behaviors cannot be achieved with a corresponding natural straight line antenna having a right-handed property.
      • The metamaterial-based spiral (MetaSpiral) antenna presented in Chapter 2 and the metamaterial-based helical (MetaHelical) antenna presented in Chapter 3 are shown to create a left-handed CP beam across a specific frequency band and a right-handed CP beam across a different frequency band. In other words, each of the MetaSpiral and MetaHelical radiates a counter dual-band CP beam. It should be emphasized that the antenna height for the MetaSpiral is approximately 1/100 of the wavelength at the lowest operating frequency, in contrast to the 1/4 wavelength antenna height of conventional antennas backed by a conducting plate (reflector). 
    • Biography
      • Hisa-Matsu NAKANO has been a faculty member of Hosei University since 1973, where he is now a Professor in the Electrical and Electronics Engineering Department. He has published over 300 articles in major refereed journals and is the author or co-author of 9 books. 
      • Prof. Nakano has been an IEEE Life Fellow since 2011. He has been awarded 70 patents. His significant contributions are the development of five integral equations for line antennas and the realization of numerous wideband antennas, such as curl, spiral, helical, and cross-wire antennas. His low-profile helical array antenna has been used as a primary feed for radio astronomy Cassegrain reflectors. It has also been adopted as a high-gain antenna on Mercury Magnetospheric Orbiter. His other accomplishments include antennas for GPS, personal handy phone systems, space radio, electronic toll collection systems, RFID systems, UWB systems, and radar systems. 
      • In 1989, he received the IEE (currently IET) International Conference on Antennas and Propagation Best Paper Award. In 1994, he received the IEEE AP-S H. A. Wheeler Award. He also received the IEEE AP-S Chen-To Tai Distinguished Educator Award in 2006. More recently, in 2010, he received the Prize for Science and Technology from Japan’s Minister of Education, Culture, Sports, Science, and Technology. 
      • Prof. Nakano has served as a member of IEEE AP-S AdCom (2000-2002), an IEEE AP-S Region 10 representative (2004-2010), the chair of IEEE AP-S best papers award committee (2011-2013), an IEEE AP-S short course lecturer (2007-present), etc.