InCAP 2019

2nd Indian Conference on Antennas & Propagation (InCAP2019)
December 19-22, 2019 | Ahmedabad, India

Last Date for Paper submission : August 15, 2019

Notification of Acceptance : September 14, 2019

Early Bird Registration : October 31, 2019

Last Date for Registration : Dec 10, 2019

Congratulations! 2018 IEEE Indian Conference on Antennas and Propogation (InCAP) has been posted to the IEEE Xplore digital library effective 2019-07-25

speaker img
Dr. Ameesh Pandya

Title: Antennas in the design of an end-to-end system – a bottleneck or an opportunity?

ABSTRACT: Whether it’s a design of communication system or radar, it is prudent for a system architect to take into account mission, requirements and technological capabilities. Every sub-system, component, channel characteristics and operational environment plays a critical role which makes the design that much more exciting and challenging. One of such key sub-system is the antenna which is the interface to an “external world”. So does this make it a bottleneck in the design? Or an opportunity to enhance the system’s capabilities? This talk focuses on the criticality of an antenna in the design of a system and the role of an antenna engineer in architecting a system. We shall revisit the world of antenna from a System Architect’s perspective and initial design challenges. Speaker will also share his personal experience as a Program Manager and Principal Investigator in working with different entities involved in developing and designing an operational system such as impacts of constantly changing requirements before SRR.

DR. AMEESH PANDYA: Has more than 17 years of experience with 15+ years working in Aerospace industry. He has vast experience with space, air and terrestrial communications. Currently Dr. Pandya serves as a Program Manager and Principal Investigator for the next generation technology on protected communications. He is also a Capture Manager responsible for new business and technology development. Previously, Dr. Pandya has been IPT Lead responsible for RF Units and Antenna Sub-systems, and Chief Network Engineer on SATCOM Program. In addition, he is also a visiting lecturer at University of California Los Angeles (UCLA). Dr. Pandya has Ph.D. in Electrical Engineering from UCLA and has various publications and pending patents. He is also a sports and music lover with representation of Gujarat State at National Level and Visharad degree in Music (Tabla).

speaker img
Prof. Prabhakar H. Pathak Professor Emeritus, The Ohio State University,
ECE Dept., Columbus, Ohio, USA Adjunct Professor,
University of South Florida, Tampa,
Florida, USA
pathakph@gmail.com

Title: Beam Techniques to Rapidly Analyze/Synthesize Large Reflector Antennas for Satellite Communication Applications

ABSTRACT: It is known that a point source placed in complex space, i.e., a complex source, generates a wave which exhibits a focused, or beam like behavior with an amplitude decay transverse to its propagation axis [1,2,3]. Depending on how deeply into complex space the source is placed dictates whether the beam is strongly or weakly focused. Such a behavior exists for both, scalar and electromagnetic (EM) waves. A complex source beam (CSB), generated by a complex point source, is an exact solution of the scalar wave equation; likewise, in the EM case, it is an exact solution of Maxwell's equations. In its paraxial region, the CSB behaves like a Gaussian beam (GB) which is a paraxial approximation of the wave equation and inherently contains a windowing behavior in its spatial distribution. The above important properties of the CSBs can be exploited for their use as efficient basis functions to represent relatively arbitrary EM fields. Here, field expansions in terms of the CSBs as the basis functions are demonstrated to rapidly analyze/synthesize large reflector antenna systems commonly used for satellite communications applications. The radiation from the feed which illuminates the reflector is expanded in a set of well focused CSBs, where the feed radiation is assumed known. Such a procedure to obtain a convergent CSB expansion has been described in [4,5]. The CSBs are launched radially out from the feed in the present application. Each CSB hits the reflector from where it is reflected by the surface and diffracted by the edge. The reflected and diffracted contributions from each beam in the expansion are then summed at the field point to obtain the total field of the reflector antenna. The complex points of reflection and diffraction are found via an analytic continuation of real ray reflection and diffraction paths. The reflected beam is found by an analytic continuation of the geometrical optics (GO) reflection for real sources. The diffraction of CSBs by the reflector edges is found by an analytic continuation of the conventional ray based uniform geometrical theory of diffraction (UTD) for edges [6]; a justification for this procedure is provided in [7]. Details of the latter diffraction calculations are described via a novel uniform theory of diffraction (UTD) developed for beams (or UTDB) in the case of edged bodies [8]. Examples of radiation patterns of reflector antennas obtained via the UTDB approach are presented for single beams and also for realistic feed type illumination which involve a beam summation. Applications involving a single feed and an array feed are discussed. The UTDB analysis of a single feed and shaped reflector is demonstrated for a CONUS beam. It is shown that a synthesis of a shaped reflector based on standard physical optics (PO) based codes (which integrate on the PO currents induced over an electrically large reflector surface by the feed) typically require a handful of days to run. In sharp contrast, a UTDB based code can yield an answer for the same problem in only a handful of hours. Additionally, PO does not accurately predict cross polarization effects, whereas UTDB is more accurate. Also, the beam technique avoids any problems at ray caustics which may occur in the reflector main beam direction when using conventional ray based UTD for analyzing reflectors. It may be remarked that a PO based UTD for GBs was used previously in a successful manner for analyzing reflector antennas [9]; on the other hand, the present paper deals with a refinement to [9] since it employs the new and improved solution as described in the UTDB development utilizing CSBs [8]. It may be mentioned in the passing that, due to their versatility, CSB expansions have also been used in dealing with other applications to antennas [10,11].
[1] J. B. Keller and W. Streifer, "Complex Rays with an Application to Gaussian Beam," J. Opt. Soc. Amer., Vol. 61, pp. 40 - 43, 1971
[2] G.A. Deschamps, "Gaussian Beam as a bundle of Complex Rays," Electron. Lett., Vol. 7, pp. 684 -685, 1971
[3] L. B. Felsen, "Complex Source Point Solution of the Field Equations and their Relation to the Propagation and Scattering of Gaussian Beams," Symposia Mathematica, Vol. 18, pp. 39 - 56, 1976
[4] M. Katsav and E. Heyman, "A Beam Summation Representation for 3-D Radiation from a Line Source Distribution," IEEE Trans. AP-56, No. 2, pp. 602 - 605, Feb. 2008
[5] K. Tap, P. H. Pathak and R. J. Burkholder, "Exact Complex Source Point Beam Expansions for Electromagnetic Fields," IEEE Trans. AP-59, No. 9, pp. 3379 - 3390, Sept. 2011
[6] R. G. Kouyoumjian and P. H. Pathak, "A Uniform Geometrical Theory of Diffraction by an Edge in a Perfectly Conducting Surface," Proc. IEEE, Vol. 62, pp. 1448 - 1461, 1974
[7] H-T. Chou, P. H. Pathak and Y. Kim and G. Manara, "On Two Alternative Uniformly Asymptotic Procedures for Analyzing the High Frequency Diffraction of a Complex Source Beam by a Straight Wedge," IEEE Trans. AP-66, No. 2, 2018
[8] P.H. Pathak, H-T. Chou and Y. Kim, UTDB paper currently in preparation
[9] H-T. Chou, P. H. Pathak and R. J. Burkholder, "Novel Gaussian Beam Method for the Rapid Analysis of Large Reflector Antennas," IEEE Trans. AP-49, No. 6, pp. 880 - 893, 2001
[10] K. Tap, P. H. Pathak and R. J. Burkholder, "Complex Source Beam - Moment Method Procedure for Accelerating Numerical Integral Equation Solutions of Radiation and Scattering Problems," IEEE Trans. AP-62, No. 4, pp. 2052 - 2062, 2014
[11] H-T. Chou, P. H. Pathak, S-C. Tuan and R. J. Burkholder," A Novel Far-Field Transformation via Complex Source Beams for Antenna Near Field Measurements on Arbitrary Surfaces," IEEE Trans. AP-65, No. 12, pp. 7266 - 7279, 2017

PROF. PRABHAKAR H PATHAK: Received his Ph.D. (1973) in Electrical Engineering from the Ohio State University (OSU). Currently he is Professor Emeritus at OSU, and Adjunct Professor at the Univ. of South Florida. Prof. Pathak is regarded as a codeveloper of the uniform geometrical theory of diffraction (UTD). His research interests continue to be in the development of new UTD ray solutions in both the frequency and time domains, as well as in the development of fast beam and hybrid (ray and numerical) methods for analyzing electrically large electromagnetic (EM) antenna and scattering problems, including reflector systems and conformal phased arrays. His work includes the development of analytical tools for predicting EM radiation and mutual coupling associated with antennas/arrays on large airborne/spaceborne platforms. He is also working on novel methods related to near field measurements of far zone antenna patterns. Prof. Pathak has been presenting short courses and invited talks at conferences and workshops both in the US and abroad. He has authored/coauthored over hundred journal and conference papers, as well as contributed chapters to seven books. Prior to 1993, he served two terms as an associated editor for Trans AP. He was appointed AP-S distinguished lecturer during 1991-1993, and was later appointed as chair of the distinguished lecturer program for the AP-S during 1995-2005. He was an AP-S AdCom member in 2010. He received the 1996 Schelkunoff best paper award from AP-S; the ISAP 2009 best paper award, the George Sinclair award (1996) from the OSU ElectroScience Laboratory, and the Third Millenium medal from AP-S in 2000. Prof. Pathak received the AP-S distinguished achievement award in 2013. He is an Life Fellow and a member of URSI commission B.

speaker img
Dr. Clency Lee-Yow

Title: Antenna Design, Manufacture, and Test for Satellite Applications in New Space

ABSTRACT: Over the past few years, market conditions have drastically changed for satellite manufacturers and their suppliers. Demand for large geostationary satellites is down significantly while the opposite is true for smaller low-cost satellites and large constellations. Companies like CMi has had to make significant changes and adapt to survive in this new environment. This presentation provides an overview of some of the changes CMi has made to its antenna design, manufacturing, and test methodology for satellite applications. Reducing cost and schedule for these antennas is paramount in this new market environment while ensuring high RF performances, low risks for passive inter-modulation products, ability to handle high power, thermal stability, and structural integrity. Antennas to be addressed includes reflector antennas, feeds for reflector antennas, feed arrays, and array antennas.

DR. CLENCY LEE-YOW: Graduated from Queen Mary College in London, UK with a B.Sc. and a Ph.D. in Electrical Engineering. He spent one year with the university as a research assistant before joining Com Dev Internation in Cambridge, Ontario, Canada where he worked as a senior engineer designing a variety of reflector antenna feeds for satellite communications. In 1994, he joined Custom Microwave Inc. (CMI) and took over as VP of operations. He became President of CMI in 1999 and has since transformed the company into a major supplier of high-performance reflector antenna feeds for satellit communications. Since that time, CMI has supplied feeds fr more than 230 satellites

speaker img
Prof. Sungtek Kahng Dept. of Information & Telecommunication Engineering, Incheon National University, Korea, s-kahng@incheon.ac.kr, phone : +82-32-835-8288

Title: The Positioning of Metamaterials and Metasurfaces in Antenna Systems for 5G Mobile Communication

ABSTRACT: Almost every single moment nowadays, we hear sales pitches of 5G mobile communication services and products. The commercials keep trying to convince us that we cannot live without 5G mobile phones. Seriously? Not much time has passed since we bought LTE-A phones, and is it necessary to desert healthy 4G phones and get devices of the New Radio era? What kinds of perks will we get with 5G phones? They are higher data-transmission rate, tremendous connectivity, low latency or what not. What makes difference in handset devices from 4G to 5G to attain the benefits? 5G mobile communication is symbolized with millimeter-wave circuits and antennas. This aims at beamforming and an increased speed of streaming services. Actually, the millimeter-wave antenna is yet to come, and sub-6 GHz is available for fast transceiving video signals using carrier aggregation. As for hyper connectivity, MIMO and IoT are mentioned. The capacity of the MIMO ought to be much greater than LTE-A wireless link equipment by enabling a densely populated base-station antenna. Driverless cars are being tested and evolved as a feature of the 5G times, which relies on high speed data-transmission shorter than 10 ms. Antenna design and development technologies up to the smart phone age can iron out the achievement of the aforementioned objectives? In this keynote talk, the possibility and latest progress of combining metamaterials with antenna systems for 5G mobile communication is tapped into as technological jumps. Not only CRLH transmission-lines but also metasurfaces are brought to your attention to enhance the performances of antennas as part of the 5G equipment. Metamaterial components can make a 5G beamforming antenna small in size and/or less power-consuming. Metasurfaces enable basic antennas to have increased gains. Metamaterial MIMO antennas can increase the density and diversity gain for a limited space. There are more to come. It is meaningful and of value to deal with hybridization between the conventional antenna design methods and well-versed metamaterial technologies to reach the multiple goals of cost-saving and efficiency-maximizing in 5G wireless system development.

PROF. SUNGTEK KAHNG Received his Ph.D. degree in electronics engineering and communication engineering from Hanyang University, Korea in 2000, with a specialty in radio science and engineering. From 2000 to early 2004, he worked for the Electronics and Telecommunication Research Institute on numerical electromagnetic characterization and developed RF passive components/antenna feed assemblies for satellites. In March 2004, he joined the Department of Information and Telecommunication Engineering at the Incheon National University where he has continued research on analysis and advanced design methods of microwave components and antennas, including metamaterial technologies, MIMO communication, 5G beamforming antennas and wireless power transfer. He is the Antenna and Microwave area evaluator of Korean Satellite Development Programs invited by NRF, while having worked as a consulting professor for Radio Research Agency, Samsung Electronics, Acetechnology, Amotech, Innertron and serving as the general chair for APCAP 2019 as well as general secretary of ISAP 2011 and APEMC 2011 for KIEES, and head of MTT/AP Technical Group of Korean Institute of Communication and Information Sciences.

speaker img
Lot Shafai University of Manitoba, Canada

4. Problems of Antenna Miniaturization and possible Remedies

ABSTRACT: Wireless communication is becoming an essential part of most new technologies, especially in personal communication, remote sensing, autonomous navigation, medical imaging and structural or personal health monitoring. Since the dominant means of information exchange is electromagnetic waves, they need antennas to transmit and receive the waves and electronics to process them. However, antennas must interface two separate bounded and unbounded media, where waves have distinct and different sizes. Consequently, to interact efficiently with waves their dimensions have become wavelength dependent, limiting their size reductions. This is the major impediment for antenna miniaturization. On the other hand, advancement of traditional technologies and emergence of new ones require ongoing size reductions to incorporate more features and operate at lower cost. This size discrepancy, thus, has made antennas the “Achilles’ heel” of technology progress, and is not limited to any particular area. Any small reduction in the antenna size, without deteriorating their performance, will provide a major progress in related technologies. Planar antennas are miniaturized in one dimension, and this presentation will highlight the penalties paid for miniaturizing their other dimensions, followed by new designs that can overcome the problems.

Bio: Lotfollah Shafai B.Sc. from University of Tehran in 1963 and M.Sc. and Ph.D., from University of Toronto, in 1966 and 1969. In November 1969, he joined the Department of Electrical and Computer Engineering, University of Manitoba as a Lecturer, Assistant Professor 1970, Associate Professor 1973, Professor 1979, Distinguished professor 2002, and Distinguished professor Emeritus 2016. His assistance to industry was instrumental in establishing an Industrial Research Chair in Applied Electromagnetics at the University of Manitoba in 1989, which he held until July 1994. In 1986, he established the symposium on Antenna Technology and Applied Electromagnetics, ANTEM, at the University of Manitoba, which has grown to be the premier Canadian conference in Antenna technology and related topics. He has been the recipient of numerous awards. In 1978, his contribution to the design of the first miniaturized satellite terminal for the Hermes satellite was selected as the Meritorious Industrial Design. In 1984, he received the Professional Engineers Merit Award and in 1985, "The Thinker" Award from Canadian Patents and Development Corporation. From the University of Manitoba, he received the "Research Awards" in 1983, 1987, and 1989, the Outreach Award in 1987 and the Sigma Xi Senior Scientist Award in 1989. In 1990 he received the Maxwell Premium Award from IEE (London) and in 1993 and 1994 the Distinguished Achievement Awards from Corporate Higher Education Forum. In 1998 he received the Winnipeg RH Institute Foundation Medal for Excellence in Research. In 1999 and 2000 he received the University of Manitoba Research Award. He is a life Fellow of and a life Fellow of The Royal Society of Canada. He was a recipient of the Third Millenium Medal in 2000 and in 2002 was elected a Fellow of The Canadian Academy of Engineering and Distinguished Professor at The University of Manitoba. In 2003 he received an Canada “Reginald A. Fessenden Medal” for “Outstanding Contributions to Telecommunications and Satellite Communications”, and a Natural Sciences and Engineering Research Council (NSERC) Synergy Award for “Development of Advanced Satellite and Wireless Antennas”. He held a Canada Research Chair 2001-2016 in Applied Electromagnetics and was the International Chair of Commission B of the International Union of Radio Science (URSI) for 2005-2008. In 2009 he was elected a Fellow of the Engineering Institute of Canada, and was the recipient of Chen-To-Tai Distinguished Educator Award. In 2011 he received the Killam Prize in Engineering from The Canada Council, for his “outstanding Canadian career achievements in engineering, and his research on antennas”. In 2013 he received The “John Kraus antenna Award” from Antennas and Propagation Society “For contributions to the design and understanding of small high efficiency feeds and terminals, wideband planar antennas, low loss conductors, and virtual array antennas”. In 2014 he was the recipient of Edward E. Altschuler Best paper Prize from Magazine, and in 2016 the best paper award from ANTEM. In 2017, International Union of Radio Science, URSI, awarded him the Booker Gold Medal “For outstanding contributions to antenna miniaturization by electromagnetics and numerical techniques, small satellite terminals, planar antennas, invention of virtual reflectors, low loss engineered conductors and dielectric film components and antennas”. In 2018, he was the recipient of Antennas and Propagation Society’s Distinguished Achievement Award “For contributions to singular electromagnetics, moment methods, reflector feeds and virtual arrays, wideband antennas, gain enhancement in miniaturized antennas and dielectric film circuits and antennas”

speaker img
Dr. C. J. Reddy Vice President of Business Development – Electromagnetics, Americas Altair
cjreddy@altair.com

1. Hybrid Computational Techniques for Analysis of Airborne Antennas and Radomes

ABSTRACT: With growing communications, nowadays there are increasingly sophisticated antenna systems with associated electronics aboard aircrafts. Advances in electromagnetic (EM) simulations have significantly improved the design process for such systems, resulting in reduced testing time and costs. EM simulations are widely used in the aerospace industry for antenna design, placement and airborne radars. Simulations can be broadly categorized into full-wave and asymptotic solutions. Asymptotic solutions also solve Maxwell Equations, but with appropriate assumptions and approximations. While full wave solutions are accurate, they are computationally expensive when applied to electrically large structures such as aircrafts. While asymptotic solutions may provide an alternative, they may not be suitable for modeling complex antenna geometries while mounted on the aircraft. In this talk, we will review hybrid computational techniques that are becoming popular to analyze and optimize antenna designs as well as antenna placement on air borne platforms. Efficient hybrid methods for airbone radome analysis will also be presented.

BIO: Dr. C.J. Reddy : is the Vice President, Business Development-Electromagnetics for Americas at Altair Engineering, Inc.(www.altair.com). At Altair, he is leading the marketing and support of commercial 3D electromagnetic software, FEKO (http://www.altairhyperworks.com/product/FEKO) in Americas. Dr. Reddy was a research fellow at the Natural Sciences and Engineering Research Council (NSERC) of Canada and was awarded the US National Research Council (NRC) Resident Research Associateship at NASA Langley Research Center. While conducting research at NASA Langley, he developed various computational codes for electromagnetics and received a Certificate of Recognition from NASA for development of a hybrid Finite Element Method/Method of Moments/Geometrical Theory of Diffraction code for cavity backed aperture antenna analysis. Dr. Reddy is a Fellow of , Fellow of Applied Computational Electromagnetics Society (ACES) and a Senior Member of Antenna Measurement Techniques Association (AMTA). Dr. Reddy served on ACES Board of Directors from 2006 to 2012 and again from 2015 to 2018. Dr. Reddy was awarded Distinguished Alumni Professional Achievement Award by his alma mater, National Institute of Technology (NIT), Warangal in 2015. He published 37 journal papers, 77 conference papers and 18 NASA Technical Reports to date. Dr. Reddy is a co-author of the book, “Antenna Analysis and Design Using FEKO Electromagnetic Simulation Software,” published in June 2014 by SciTech Publishing (now part of IET). Dr. Reddy was the General Chair of ACES 2011 Conference held in Williamsburg, VA during March 27-31, 2011. And also ACES 2013 conference, Monterey CA (March 24-28, 2013) as well as the General Chair of ACES 2015 conference held in Williamsburg, Virginia during March 22-26, 2015. He was the Co-General Chair of 2014 International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting held during July 6-11, 2014 in Memphis, TN. Dr. Reddy is the General Chair for AMTA 2018 conference to be held in Williamsburg, Virginia during November 3-8, 2018.

speaker img
Prof. Dr. N.N.S.S.R.K. PRASAD

2. Requirements of Antennas for Next Generation Stealth Fighter Aircrafts

ABSTRACT: Fighter aircrafts draw their lethal and survivable strengths from the Sensor Systems that are installed on them. The typical sensor systems that are essential for combat aircrafts are Radar, EW System, Communication-Navigation-Identification (CNI) systems. Stealth fighter aircrafts demand different requirements of antennas of their sensors on the aircraft when compared to non-stealth fighter aircrafts. All the antennas on Stealth Fighters have to be primarily conformal or concealed to produce as low RCS as possible of the aircraft. This presentation brings the requirements, issues associated with and existing and futuristic technologies for these antennas of next generation stealth fighter aircrafts.

BIO: Dr. N.N.S.S.R.K. Prasad: More than 31 years of Experience in Research, Design and Development. Presently working as Scientist ‘H’ (Outstanding Scientist) and Technology Director (LCA Payloads) in Aeronautical Development Agency (ADA).

Joined ADA in 1998 from SAMEER-Mumbai (former group of Tata Institute of Fundamental Research (TIFR)-Mumbai), where he was working (as Head-Signal Processing Group) since 1986.

B.Tech., in Electronics and Communication engineering and M.Tech., in Controls and Instrumentation from JNTU College of engineering, Kakinada, (A.P.) in 1985 and 1987 respectively. Obtained Ph.D. in Communication Engineering from IIT-Bombay in 2003.

Worked and contributed for Prestigious and very important National Projects like MST Radar for atmosphere research of ISRO (NARL), Opto-electronic Integrated Circuits project for Ministry of Information Technology, RF Networking of Indian Light Houses & Radio Beacon projects of Ministry of Surface Transport, Active Seeker project of DRDO etc. during his tenure at SAMEER-Mumbai.

Currently he is working for another prestigious project of the nation i.e. Tejas- Indian Light Combat Aircraft (LCA) project, its variants for Indian Air Force (IAF) and Indian Navy (IN). He is also working for Advanced Medium Combat Aircraft and other projects of ADA.

He has more than 100 publications in national and international conferences and journals. He is a senior member of , USA, Fellow of IETE, IE, OSI, VEDA, Life Member of ISOI, AeSI, ASCI and CSI and Member of IET, UK and AOC, USA.

Awarded 'DRDO Scientist of the Year' for 2014.

Guided independently many under graduate and post-graduate projects. Under his guidance, two PhD thesis programs completed for VTU in 2014. Presently guiding five PhDs programs under VTU, Belgaum, Karnataka and one under MIT, Chennai, Tamilnadu.

Reviewer for Journals of AeSI-India, -USA and IEE (IET)-UK.

PhD/M.Tech external examiner for IIT-Bombay, DIAT-Pune, VIT-Vellore-Tamilnadu, VTU-Belgaum-Karnataka and paper setter for VTU-Karnataka.

speaker img
Dr. C.B. Ravipati, Intelsat Corporation, McLean,
Virginia, USA

3. Overview of Satellite Communication Systems, Antennas & Propagation Effects

ABSTRACT: A general overview of the satellite networks, types of satellites and orbits and their missions will be presented initially. Impact of antenna characteristics and propagation effects on communications links will be addressed. The second part of the talk will be devoted to the space segment including key features of communications payloads. Next, the ground segment considerations for various applications will be addressed. A few examples of satellite link calculations will be presented. Satellite constellations have received attention in the recent past and some of those systems will be outlined. The presentation concludes with a summary of major satellite operators, regulatory aspects, and market trends.

Biography: Dr. C.B. Ravipati received his Ph.D. degree in Electrical Engineering from the Indian Institute of Technology Kanpur. During 1996-98, he worked as a Post Doctoral Fellow at the University of Manitoba, Winnipeg, Canada. He was employed at MDA Space Corporation, Canada and later at Orbital Sciences Corporation where he was involved with analysis and design of satellite antenna systems and payload hardware ranging from UHF to Ka-band. He is presently working in the Space Systems group at Intelsat Corporation, USA. His responsibilities include systems architecture studies for new communications satellites and services.

He is a Senior Member of and a reviewer for Transactions on Antennas and Propagation, Antennas and Propagation Magazine, and Antenna and Wireless Propagation Letters. He has presented peer-reviewed papers at several international conferences and co-authored two chapters in “Handbook of Reflector Antennas and Feed Systems” published in 2013 by the Artech House.

speaker img
Prof. Atif Shamim

4. Additively Manufactured Flexible and Wearable Antenna Systems

ABSTRACT: With the advent of wearable sensors and internet of things (IoT), there is a new focus on electronics which can be bent so that they can be worn or mounted on non-planar objects. Due to large volume (billions of devices), there is a requirement that the cost is extremely low, to the extent that they become disposable. The flexible and low-cost aspects can be addressed through additive manufacturing technologies such as inkjet, screen and 3D printing. This talk introduces additive manufacturing as an emerging technique to realize low cost, flexible and wearable antenna systems. The ability to print electronics on unconventional mediums such as plastics, papers, and textiles has opened up a plethora of new applications. In this talk, various innovative antenna designs will be shown which have been realized through additive manufacturing. A multilayer process will be presented where dielectrics are also printed in addition to the metallic parts, thus demonstrating fully printed antennas. Many new functional inks and their use in tunable and reconfigurable antennas will be shown. In the end, many system level examples will be shown, primarily for wireless sensing applications. The promising results of these designs indicate that the day when electronics can be printed like newspapers and magazines through roll-to-roll and reel-to-reel printing is not far away.

Biography: Atif Shamim – received his MS and PhD degrees in electrical engineering from Carleton University, Canada in 2004 and 2009 respectively. He was an NSERC Alexander Graham Bell Graduate scholar at Carleton University from 2007 till 2009 and an NSERC postdoctoral Fellow in 2009-2010 at Royal Military College Canada and KAUST. In August 2010, he joined the Electrical Engineering Program at KAUST, where he is currently an Associate Professor and principal investigator of IMPACT Lab. He was an invited researcher at the VTT Micro-modules Research Center (Oulu, Finland) in 2006. His research work has won best paper awards in EuWiT 2008, IMS 2016, MECAP 2016 and honorable mention prizes in 2005, IWAT 2006, IMS 2014, IMS 2017 (3MT competition). He was given the Ottawa Centre of Research Innovation (OCRI) Researcher of the Year 2008 Award in Canada. His work on Wireless Dosimeter won the ITAC SMC Award at Canadian Microelectronics Corporation TEXPO in 2007. Prof. Shamim also won numerous business-related awards, including 1st prize in Canada’s national business plan competition and was awarded OCRI Entrepreneur of the year award in 2010. He is an author/co-author of over 200 international publications, an inventor on 20 patents and has given over 40 invited talks at various international forums. His research interests are in innovative antenna designs and their integration strategies with circuits and sensors for flexible and wearable wireless sensing systems through a combination of CMOS and additive manufacturing technologies. Dr. Shamim is a Senior Member of and serves on the editorial board of Transactions on Antennas and Propagation.

speaker img
Prof. Tadashi Takano (Professor Emeritus, JAXA) Hiroshi Matsumoto
(Chairman, Space Solar Power Systems Society)

5. Antenna and Propagation for Microwave Power Transmission in Space

ABSTRACT: A large amount of power can be transmitted on a microwave from space to the earth, as is called a space solar power system (SSPS). The SSPS is a powerful solution to the world-wide issue of energy and environment. This scheme is particularly beneficial to equatorial countries as the satellite flies over the equator.

The microwave power transmission needs quite large transmitting and receiving antennas on a satellite and on the ground, respectively. Accordingly, the concept of antennas and their way of construction should be quite different from conventional ones. The transmitted power beam should be accurately and precisely controlled to be put into the receiving aperture. The influence of space plasma should be considered in beam propagation. On the other hand, suitable measures against emergency have to be investigated.

This presentation will explain the whole idea of SSPS, and the current status of the aforementioned technology study, as may gives the audience some hints of new research topics. Finally, it should be noted that a SSPS needs global collaboration in both research and construction phases, due to large scaled launching and assembling in space and a particular role of equatorial countries.

Biography: Tadashi Takano – received B. S. and M. S. in Electric Engineering and Electronic Engineering, respectively, and Ph. D. from the University of Tokyo, in 1967, 1969, and 1972, respectively.

In 1972, he joined the Electrical Communication Laboratories of Nippon Telegraph and Telephone (NTT) Public Corporation. In 1984, he moved to the Institute of Space and Astronautical Science, Japan, where he was Professor in Radio Tracking. Later, the institute was merged to form JAXA. In 1991 he became Professor in Electronic Engineering in the Graduate School of the University of Tokyo. In retirement, he was awarded a professor emeritus. In 2008, he moved to Nihon University as a professor in Electronics and Computer Science, where he is now a fellow researcher after retirement.

His research interests originally included antenna engineering and radio communications. He extended his research field to radio wave applications to space debris monitoring, natural hazard detection, and wireless power transfer. He played a role of a chairman in several domestic or international academic societies. He contributed to planning of R&D strategy in NTT and several governmental organizations.

He received several awards from the Institute of Electronics, Information and Communication Engineers (IEICE) of Japan su as the 1992 Excellent Paper Award, and the 1983 Kajii Award from NTT, iWAT2010 Best Paper Prize, and so on.

Dr. Takano is a member of (Fellow), IEICE (Fellow), Institute of Electrical Engineers of Japan, URSI, Japan Society for Aeronautical and Space Science, Japan Rocket Society, Space Solar Power Research Society, Seismology Society of Japan, American Geophysical Union.

Subscribe for updates


© All rights reserved.