1. technology and computing

IEEE Antennas and Propagation Society Madras Chapter
in association with
SSN College of Engineering, Kalavakkam
and
IEEE Microwave Theory and Techniques Society Madras Chapter
present
3 – Day Workshop on Advanced Antenna Technology
November 5-7, 2014
This workshop is organized for the benefit of faculty and researchers having interest in the areas
of electromagnetics, antennas and propagation. Post graduate research students working, or
having interest, in these areas are also welcome.
Program Schedule
(Includes working lunch and tea)
Date
Time
05.11.14
Wednesday
8.15 a.m. – 9.00a.m.
Registration
9.00 a.m. – 11.30 a.m.
Fractal Geometries in
Electromagnetics: Recent Trends
Dr. B. Ghosh, IIST,
Thiruvananthapuram
1.00 p.m. – 3.15 p.m.
Finite Difference Time Domain
Method and its Application to
Planar Antennas
Dr. P. Mohanan, CUSAT,
Cochin
9.00 a.m. – 11.30 a.m.
Periodic Structure and its
Applications to Antennas
Dr. A. Alphones, NTU,
Singapore
1.00 p.m. – 3.15 p.m.
Phase Shifters for Antenna
Dr. S. Raju, TCE, Madurai
9.00 a.m. – 11.30 a.m.
Antenna Technology for Wireless
Mobile Device
Dr. J. Thakur, Intel,
Bangalore
1.00 p.m. – 2.15 p.m.
Recent Research on Horn
Antennas
Dr. C. Y. Tan, Motorola
Solutions, Malaysia and
Dr. K.T. Selvan, SSNCE,
Kalavakkam
2.15 p.m. – 3.15 p.m.
Feedback & Winding Up
06.11.14
Thursday
07.11.14
Friday
Topic
Speaker
Registration information
Registration is open to faculty, engineers from industry and doctoral students. The number of
participants is limited to 60.
The registration fee is Rs. 1000 for IEEE members and full-time doctoral students, Rs. 1500 for
others.
The fee should be paid by Demand Draft, drawn in favor of “The Principal, SSN College of
Engineering” payable at Chennai.
Please fill-in the registration form, and send along with DD by post to the address given therein.
On-campus accommodation is available on request. The room rent is Rs. 100/- per day on twinsharing basis; this amount can be paid by cash at the time of registration.
Last date for receiving registration form and DD: October 31, 2014
Venue
Central Seminar Hall, ECE Department,
SSN College of Engineering, Rajiv Gandhi Salai (OMR), Kalavakkam – 603 110
For any clarifications, please email either of the workshop coordinators:
Mr. S. Joseph Gladwin, josephgladwin@ieee.org
Mr. S. Karthie, karthies@ssn.edu.in
Registration Form
IEEE AP-S Workshop on Advanced Antenna Technology
November 5-7, 2014
1. Name:
2. Department:
3. Institution:
4. Position:
5. IEEE Membership Grade/Number:
(if applicable)
6. Address for Communication:
_______________________________________________
_______________________________________________
_______________________________________________
E-mail: ______________________________________________
Mobile No.: __________________________________
7. Fee payable: Rs.
DD Number:
Bank Name:
8. Do you need on-campus accommodation?
Date:
Yes/No
Participant’s Signature
Please post this form, along with DD, to:
The Principal
SSN College of Engineering
Rajiv Gandhi Salai (OMR)
Kalavakkam – 603 110
Please superscribe the envelope with ‘IEEE AP-S Workshop’
Abstracts of talks and biographies of speakers
Fractal Geometries in Electromagnetics: Recent Trends and Developments
by Dr. Basudeb Ghosh, Indian Institute of Space Science and Technology, Thiruvananthapuram
The rapid growth in the wireless systems during the past several years has set new demands on
electromagnetic engineers. There is a trend to integrate the entire system including antennas on a single
chip, which requires the design of miniaturized, power efficient and low profile antenna. Further
multiband operation of wireless systems has been receiving considerable attention during last few
decades. This requirement has initiated research in various directions especially in the design of compact
multiband antennas and microwave passive devices. One of the promising areas of research for
multiband operation in the fractal electrodynamics, in which fractal geometry is combined with
electromagnetics for the purpose of investigating a new class of radiation and scattering problem. Fractals
are complex shapes which contain an infinite number of scaled copies of the geometry and resonates at
different frequencies to provide multiband antennas, frequency selective surfaces, and electromagnetic
band gap structures.
The talk will mainly focus on a brief background on fractal geometry, the self-similarity and space filling
property of fractal and their usage in electromagnetics, the advantages of using fractals in antenna
engineering, some useful geometries in antenna engineering for multiband operation, as well as, size
miniaturization, and the application of fractals in electromagnetic bandgap (EBG) structures.
Speaker’s biography
Dr. Basudeb Ghosh was born in West Bengal, India in 1979. He received B.Sc and M. Sc. degrees in
Electronics from University of Calcutta, Kolkata, in 1999 and 2001, respectively, and Ph.D. in Microwave
Engineering from Department of Electronics and Computer Engineering, Indian Institute of Technology,
Roorkee, in 2009. He worked as a Post Doctoral Research Associate in the Department of Electronics,
Chang Gung University, Taiwan. He has also worked as Assistant Professor in Department of Electronics
and Communication Engineering in various private institutions in India. In 2011, he joined the Department
of Avionics, Indian Institute of Space Science and Technology (IIST), Thiruvananthapuram, India where he
is presently working as Assistant Professor. His current research interests include computational
electromagnetics, fractal antennas and frequency selective surfaces, microwave active and passive
circuits and substrate integrated waveguide (SIW). Dr. Ghosh is a Member of IEEE (USA).
Finite Difference Time Domain Method and its Application to Planar Antennas
by Dr. P. Mohanan, Cochin University of Science and Technology, Cochin
The electromagnetic force is the most technologically pervasive force in nature. Of the different methods
for predicting electromagnetic effects – experiment, analysis and computation – the newest and fastest
growing approach is computation. Electromagnetic computational engineering encompasses the
modeling, simulation and analysis of the responses of complex systems to various electromagnetic
stimuli, allowing for better design or modification of the system. Analysing an electromagnetic problem
demands solutions of Maxwell’s equation subject to appropriate boundary conditions at every point
along with material properties. For simple geometries closed form analytical solutions can be achieved at,
after exhaustive mathematical calculations. But, for most
realistic problems one must resort to computational electromagnetic methods (CEM). Amongst the
various approaches developed to date towards this end, the Finite Difference Time Domain Method
(FDTD) has received maximum attention and popularity by virtue of its inherent simplicity and capability
to accurately model large inhomogeneous volume. In this talk the fundamentals of FDTD is discussed in
detail. Numerical aspect like dispersion, stability will also be covered. Implementation of
FDTD for a rectangular microstrip antenna using Matlab is discussed. Determination of the return loss,
radiation pattern etc. are addressed in the talk.
Speaker’s biography
Dr. P. Mohanan received the Ph.D. degree in microwave antennas from Cochin University of Science and
Technology (CUSAT), Cochin, India, in 1985. He worked as an Engineer in the Antenna Research and
Development Laboratory, Bharat Electronics, Ghaziabad, India. Currently, he is a Professor in the
Department of Electronics, CUSAT. He has published more than 250 referred journal articles and
numerous conference articles. He also holds several patents in the areas of antennas and material
science. His research areas include microstrip antennas, uniplanar antennas, ultra wideband antennas
dielectric resonator antennas, superconducting microwave antennas, reduction of radar cross sections,
Chipless RFID, Dilectric Diplexer and polarization agile antennas. Dr. P. Mohanan received the Dr. S .
Vasudev Award 2011 from Kerala Sate Council for Science, Technology and Environment Government of
Kerala, in 2012 and Career Award from the University Grants Commission in Engineering and Technology,
Government of India, in 1994.
Periodic Structure and its Applications to Antennas
by Dr. Arokiaswami Alphones, School of Electrical and Electronic Engineering, Nanyang Technological
University, Singapore
This workshop covers the importance of periodic structures and metamaterials in microwave/millimetre
wave domain. Initial discussions will be on general periodic structures, conceptual understanding on the
leaky wave followed by realization of metamaterials in various waveguide structures. More focus will be
on substrate integrated waveguides in the later part of the discussion, including some recent meta
surface works.
Leaky wave antenna is a wave guiding structure which allows a certain amount of power to leak through
it all along its length. The wave encounters leakage as it passes through the structure. The leakage is
analysed by evaluating the complex propagation wave number γ= α+jβ, where β is the phase constant
and α indicates the leakage constant. The value of α and β are significant in deducing the characteristics
of the radiated beam. Implementation of LWAs on rectangular waveguide has been one of the earliest
successful attempts to realize LWA. Slits cut on the metal wall resulted in the leakage as the wave
propagated along the structure. On a conventional rectangular waveguide, the slit width controls the
leakage rate and the polarization of the radiated beam can be influenced by varying the waveguide
modes.
There has been a constant effort to develop better platforms for realizing planar microwave systems.
Currently microstrip and Coplanar waveguide technologies have been the most popular choices for
fabricating planar systems. A new concept for implementing microwave planar components known as
Substrate Integrated Waveguide was proposed some time back in 1980. The ability to be easily integrated
with other components on the same chipset makes them an attractive choice for the implementation of
high performance, low cost reliable mm wave systems. Basically SIWs are planar realization of
conventional rectangular waveguides. The via holes act as virtual sidewalls of the
waveguide and thus confine the electromagnetic energy within the structure. The main advantages of
these structures are their capability to handle high power and high value of quality factor. SIW is better in
comparison to existing platforms in terms of simplicity, light weight and low cost. Presently, SIW are
becoming an inevitable choice for the implementation of very high frequency integrated circuits.SIW
structure consists of two parallel metal plates separated by a dielectric substrate. The bottom plate is
usually treated as the ground plane. There are two rows of via holes (conducting cylinders) parallel to
each other. These two rows of via holes connect the two metal plates through the substrate. In addition
to containing the electromagnetic field within the structure, the via holes also connect the surface
currents to maintain guided wave propagation. Recent works on quarter
mode SIW (QMSIW) and its multiband performance will be reported. Finally reactive impedance
metasurfaces based microstrip antennas also will be discussed with interesting results.
All the design approaches and implementation issues will be discussed during this workshop and would
be useful to microwave community.
Speaker’s biography
Dr. A Alphones received his B.Tech. from Madras Institute of Technology in 1982, M.Tech. from Indian
Institute of Technology Kharagpur in 1984 and Ph.D. degree in Optically Controlled Millimeter wave
Circuits from Kyoto Institute of Technology (Japan) in 1992. He was a JSPS visiting fellow from
1996-97 at Japan. During 1997-2001, he was with Centre for Wireless Communications, National
University of Singapore as Senior Member of Technical Staff, involved in the teaching and research on
optically controlled passive/active devices. Currently he is Professor at the School of Electrical and
Electronic Engineering, Nanyang Technological University, Singapore. He is also Program Director of
OPTIMUS (Photonics Centre for Excellence) and Program Coordinator for Research. He has 30 years of
research experience. He has published and presented over 250 technical papers in peer reviewed
International Journals/ Conferences. His current interests are electro-magnetic analysis on planar RF
circuits and integrated optics, microwave photonics, and metamaterial based leaky wave antennas. He
was involved many IEEE flagship conferences held in Singapore and General Chair of APMC 2009, and
MWP 2011. His research work has been cited in the book “Millimeter Wave and Optical Integrated Guides
and Circuits”, Wiley Interscience publication. He has delivered tutorials and short courses in international
conferences. He had written a chapter on “Microwave Measurements and Instrumentation” in Wiley
Encyclopedia of Electrical and Electronic Engineering 2002. He is a Senior Member of IEEE, and serving as
Vice Chair of IEEE Singapore Section.
Phase Shifters for Antenna
by Dr. S.Raju, Thiagarajar College of Engineering, Madurai
Phased array antennas are finding applications from strategic to civilian needs. In military applications
phased array antennas are mainly used for missile tracking and security. In civilian applications especially
in wireless they are finding ample space in location finding, Car Radar and object tracking. Phase shifters
are the fulcrum of phased array antenna. There exists a wide variety of phase shifters starting from bulk
material based ferrite phase shifters to MEMS based phase shifters. This lecture will cover the evolution
of phase shifters, design aspects and application scenario.
Speaker’s biography
Dr. (Mrs.) S.Raju, born on 01.08.1960 in Allakudi, Kollidam, Chidhambaram district of Tamilnadu, is
working as a Professor and Head of Department of Electronics and Communication Engineering and as a
Coordinator of TIFAC CORE in Wireless Technologies at Thiagarajar College of Engineering, Madurai,
Tamilnadu, India. She completed her B.E in Electronics and Communication Engineering from P.S.G
college of Technology in the year 1982 and M.E in Communication systems in 1984 from
Regional Engineering College Trichy. She obtained her PhD in the area of Microwave integrated circuits in
the year 1996 from Madurai Kamaraj University. She was the first woman engineer to obtain Ph.D from
Madurai Kamaraj University. She did her post doctoral work in the area of microwave and millimeter
wave circuits and systems during 1997-2000 at Thiagarajar College of Engineering, Madurai with the
support from AICTE New Delhi. Her current areas of interest are modeling, analysis, optimization,
fabrication and testing of RF and RFMEMS circuits and Systems.
She has been a teacher for the past twenty eight years and has successfully guided nine Ph.D scholars and
currently five scholars are pursuing PhD under her supervision. She has guided more than fifty M.E and
M.S Students. She has coauthored forty seven technical papers in international and national journals. She
has published about eighty papers in international and national conferences. Her papers on Elevated
Coplanar lines are widely referred by the authors of the books on coplanar waveguides. She has
coauthored a cookbook on ADS Software for M/s Agilent Technologies. Currently, she is in the process of
developing a training module on RF CAD software for M/s. Agilent Technologies. She has chaired many
national and international conferences on RF systems and Wireless Technologies. She has organized three
national conferences, one international conference and many workshops and courses on RF and wireless
technologies.
She has successfully completed nine research projects for Defense Research Development Organization
(DRDO) Laboratories, namely RCI, Hyderabad, DEAL Dehradun and ARDB, New Delhi. She has developed
software modules for coplanar waveguides and also coordinated the development of indigenized
coplanar waveguide mixer and RFMEMS based Phase shifter for Missile seeker applications. Currently,
she is developing MEMS varactor phase shifter along with SCL, Chandigarh for defense applications under
the aegis of National programme on smart materials (NPSM).
Antenna Technology for Wireless Mobile Device
by Dr. J. Thakur, Intel Technology, Bangalore
Mobile phone antenna design becomes more challenging with increasing wireless radios. Advanced
mobile phones or tablets support 2G, 3G and LTE cellular technology including GPS, NFC and WIFI/BT
complementary wireless services. Apart from the above wireless radios and upcoming handheld devices
also support wireless charging and WiGig.
Mobile phone form factor plays a significant role in antenna design and placement in the system. Latest
market demands slim and wide touch screen phone with long battery life. Even though phone form factor
increased significantly compared to the old day’s phone most of the volume is consumed by battery and
display and antenna still has space constraint in the system. Also, mobile phone needs to fulfill network
on-the-air (OTA) performance requirements as well as country-specific SAR compliance. It extends further
constraint on antenna design.
This talk will cover internal antennas in mobile phone, various methods of antenna design and its
constraints, antenna OTA and SAR test and requirements.
Speaker’s biography
Dr. J. Thakur did his masters in electronics & communication science at Devi Ahilya University, Indore,
Madhya Pradesh, in 1997. He worked as a research fellow at Solid State physics laboratory, a Defence
R&D organization, Delhi from 1998 till 2003. He earned his PhD degree in Microwave Electronics from
Delhi University in 2004. His research work was on GaAs-Monolithic microwave circuit (MMIC) design and
process characterization up to 40 GHz Technology. He worked as a post-doctoral research fellow Kookmin
University, Seoul, South Korea and worked on RFID system design from 2005 to 2007. He worked as an
antenna design engineer at Amphenol, Shanghai from 2007 to 2009 and designed antennas for various
top branded mobile phones like Nokia, Motorola and Sony- Ericson. He joined Kwangju Institute of
Science and Technology, Gwangju as a Research Professor and worked on various industry-funded and
government-funded projects such as 94-GHz Quasi-optic antenna design for image sensing radiometer,
24-GHz Mono-pulse antenna array for surveillance RADAR and Ultra Wide Band (UWB) antenna design.
He worked as antenna group manager at Mindtree for six months. In July 2011 he joined Intel
Technology, Bangalore where he works as an antenna lead. He has published more than twenty papers in
international journals and conferences.
Recent Research on Horn Antennas
by Dr. Chin Yeng Tan, Motorola Solutions, Penang, Malaysia &
Dr. Krishnasamy T. Selvan, SSN College of Engineering, Kalavakkam
In general, horn antennas offer reasonable bandwidth, moderate to high gain and mechanical robustness.
However, the conventional horn antenna performance is sub-optimal for modern communication
applications. As a result, a number of techniques have been introduced to improve its performance. The
techniques include multi-stepping, corrugating, dielectric loading, lens loading, profiling and more
recently metallic inserts and meta-material loading. These techniques have their merits and pitfalls. This
talk will provide an overview of these techniques.
Speakers’ biographies
Dr. Chin Yeng Tan was born on 23rd Feb. 1982 in Bukit Mertajam, Penang, Malaysia. He received his BEng
(Hons) in Electronics and Communication Engineering and Doctorate of Philosophy from The University of
Nottingham, Malaysia Campus in 2006 and 2010, respectively. Dr. Tan joined Motorola Solutions (MSI) in
Penang and is now attached with Central Engineering Department as a Senior Electrical Engineer. He used
to be a transmitter engineer in TETRA Subscriber Engineering and now focuses on the advance antennas
development for MSI Penang. He designed and developed a compact EMC/EMI Pre-Compliance chamber
for the company. Currently, Dr. Tan’s responsibility is in managing a fully anechoic 3D chamber for
antennas measurement and the Pre-Compliance chamber for EMC/EMI screening. He also chairs the
Antenna Technical Council for MSI Penang and holds the responsibility of managing and coaching
technicians and young engineers.
Dr. Tan was awarded the IEEE Antennas & Propagation Society Undergraduate Research Award in 2006
and top LEAN award from Motorola Solutions in 2012 in recognition of the pre-compliance chamber
contributions. He has published over 20 research articles in several international journals, conferences
and Motorola Solutions Symposiums. He is an active reviewer for several international journals and
regular invited guest speaker for CST Workshops. Dr. Tan’s research interests include antennas theory,
design and measurement, transmitter circuit design, EMC/EMI and advanced EM simulations.
Dr. Krishnasamy Selvan has been a Professor in the Department of Electronics and Communication
Engineering, SSN College of Engineering, since June 2012. From early 2005 to mid-2012, he was with the
Department of Electrical and Electronic Engineering, University of Nottingham Malaysia Campus. He also
held the positions of the Assistant Director of Teaching and Learning for the Faculty of Engineering and
the Deputy Director of Studies of the Department of Electrical and Electronic Engineering. From early
1988 to early 2005, Selvan was with SAMEER – Centre for Electromagnetics, Chennai. Here he was
essentially involved in antenna analysis, design, and testing. During 1994–1997, he was the Principal
Investigator of a collaborative research programme that SAMEER had with the National Institute of
Standards and Technology, USA. Later he was the Project Manager/Leader of some successfully
completed antenna development projects. In early 1994, he held a two-month UNDP Fellowship at the
RFI Industries, Australia.
Selvan's professional interests include electromagnetics, electromagnetic education, horn antennas and
printed antennas. In these areas, he has authored or coauthored a number of journal and conference
papers. Selvan was on the editorial board of the International Journal of RF and Microwave ComputerAided Engineering during 2006 to 2011. He has been an academic editor for the International Journal on
Antennas and Propagation since its inception in 2006. He has been a reviewer for major journals including
the IEEE Transactions on Antennas and Propagation. He has held several significant conference roles.
Selvan is a member of the Education Committee of the IEEE AP-S. He founded the Madras Chapter of the
IEEE Antennas and Propagation Society in 2013, and is the Chapter Chair this year as well. He is a senior
member of the IEEE and a Fellow of the Higher Education Academy (UK).