2025 IEEE Wireless, Antenna & Microwave Symposium
WAMS 2025
June 5-8, 2025
Organized by
Indian Institute of Information Technology, Design and Manufacturing
Kancheepuram, Chennai
Kancheepuram, Chennai
2025 IEEE Wireless, Antenna & Microwave Symposium
WAMS 2025
June 5-8, 2025
Organized by
Indian Institute of Information Technology, Design and Manufacturing
Kancheepuram, Chennai
Kancheepuram, Chennai
About the Speakers and the Talk
Prof. Christophe Fumeaux
Chair Professor, The University of Queensland
Title of Presentation:
Multimode and reconfigurable antennas: One shared volume for multiple functionalities
Abstract:
The ubiquity of wireless communications places unique challenges on antenna technologies.
This presentation will discuss two directions of antenna research and development that will help satisfy the growing requirements for multifunctional wireless communications.
The first part of the talk will consider reconfigurable antennas and discuss how the ability to dynamically control radiation properties can benefit a broad range of applications, including for example, scanning for objects in the Internet-of-Things, tuning to a desired frequency in a software-defined radio system, or adapting a wearable antenna to body movement and a constantly changing electromagnetic environment.
In the second part of the talk, the concept of multi-port multi-mode antennas will demonstrate how new approaches will support emerging multi-functional applications, such as integrated sensing and communications, in a shared limited antenna volume.
Short Bio:
Christophe Fumeaux received his Ph.D. degree from ETH Zurich, Switzerland, in 1997. From 1998 to 2008, he held various positions at the University of Central Florida, the Swiss Federal Office of Metrology, and ETH Zurich. From 2008 to 2023, he was a Professor with The University of Adelaide. In 2023, he joined the School of Electrical Engineering and Computer Science at The University of Queensland, as Chair Professor in Optical and Microwave Engineering. His main research interests concern applied electromagnetics, antenna engineering, and the application of RF design principles across the electromagnetic spectrum.
Prof. Fumeaux was the recipient of the ETH Medal for his doctoral dissertation. He was the recipient of the 2018 Edward E. Altshuler Prize, the 2014 IEEE Sensors Journal and the 2004 ACES Journal best paper awards. He was the recipient of the University of Adelaide 2018 Stephen Cole the Elder Award for Excellence in PhD Supervision. From 2017 to early 2023, he served as the Editor-in-Chief for the IEEE Antennas and Wireless Propagation Letters. He is a Fellow of the IEEE and the 2025 President of the IEEE Antennas and Propagation Society.
Prof. Prabhakar Pathak
Professor Emeritus, ElectroScience Laboratory, Dept. of Electrical and Computer Engineering ,
The Ohio State University, Columbus, Ohio, USA.
Title of Presentation:
A Brief History of Ray Methods from Ancient to Modern Times and Their Impact on Electromagnetic Engineering Applications
Abstract:
Some of the major steps in the evolution of ray concepts and methods from about 700 B.C. to the present are briefly reviewed. Starting with the early lens making and theories of light, science of optics began to evolve and came up with the invention of the pin hole camera, the laws of reflection and refraction of light, an explanation for the formation of the rainbow, and conjectures on the finite speed of light. Later the corpuscular theory of light was introduced, but failed to explain the bending of light. it was then replaced by an early ray theory of diffraction but that failed to accurately reproduce the results of the famous double slit diffraction experiment. The latter was thus replaced by an early wave theory of light which was somewhat more accurate.In the 1800s, electromagnetic (EM) waves and light was established to be the same phenomenon. Also the speed of light was later measured and found to be the same as that predicted theoretically by equations governing EM wave propagation. Several other studies subsequently led to a significant ray theory of diffraction where diffracted ray fields existed in addition to reflected and refracted rays. The modern versions of the latter constitute the geometrical theory of diffraction (GTD) introduced in the 1950s and its uniform versions; one such being the uniform theory of diffraction (UTD) developed in the late 1970s, which still continues to be generalized for treating a wide variety of practical EM antenna and scattering problems at moderate to high frequencies.
Short Bio:
Prabhakar H. Pathak : received his Ph.D. (1973) from The Ohio State Univ.( OSU), in the Dept. of ECE where he later joined the faculty and became a Professor. Currently, he is Prof. Emeritus at OSU. He also served as an Adjunct Prof. at the Univ. of South Florida. He is regarded as a co-developer of the Uniform Geometrical Theory of Diffraction (UTD). His interests are in the development of Ray, Wave, and Beam optical methods in frequency and time domains, for solving electrically large Electromagnetic(EM) antenna and scattering problems of engineering interest. He has also developed some Hybrid methods, which combine the best features of any of the above methods with numerical methods, to solve EM problems which cannot otherwise be solved in a tractable fashion by any of the methods when used alone. His work is applicable, e.g., to the prediction of EM radiation and coupling associated with small antennas, or large phased array antennas, placed on or near large structures (such as airborne, spaceborne or naval platforms, etc.) as well as to the EM scattering by such structures. He has presented many invited lectures/short courses in the USA and abroad; also he has published 7 book chapters and several journal and conference papers. He also published a book on EM waves entitled: Electromagnetic Radiation, Scattering, and Diffraction (authors: P.H. Pathak & R.J. Burkholder). He was an Assoc. Ed. for IEEE Trans. AP; an IEEE AP distinguished lecturer (DL) during 1991-1993; chair of the IEEE AP DL program (1995-2005); member of IEEE AP-S AdCom (2010). He received the 1995 IEEE AP Schelkunoff best paper award, the 1996 George Sinclair Award from the OSU ElectroScience Lab, the 2009 ISAP best paper award, the IEEE 3rd Millenium Medal from AP-S, and the 2013 IEEE AP-S Distinguished Achievement Award. He is a Life Fellow of IEEE and member of URSI Commision B.
Sri. Rajeev Jyoti
Director Technical IN-SPACe Distinguished Scientist, ISRO Director Technical IN-SPACe, (Indian National Space Promotion and Authorisation Centre) Department of Space.
Title of Talk:
From Dreams to Launchpad: The future for Aspiring space Entrepreneurs
Abstract:
This talk explores the critical role of innovators, technologist, scientists, academicians and strategic collaborations in enabling startups to make meaningful contributions to the space sector for socioeconomic impact. The highlight of this talk will be to gain insights into India’s unique ecosystem for fostering space entrepreneurship, enabling initiatives like IN-SPACe’s Technical centre, design lab and the Technology Adoption Fund. By addressing key challenges—such as resource constraints, regulatory frameworks, and market dynamics—the talk empowers aspiring entrepreneurs by showcasing how the landscape of space is being changed by young minds who are bridging the gap between vision and reality. How we can shape a future where dreams of space exploration inspire scalable and impactful ventures on Earth and beyond.
Short Bio:
Since 1986, Rajeev Jyoti played a pivotal role in the development of various space-based technologies. Currently, he. Is serving as the Director Technical, where he provide leadership and guidance to Indian space startups. In this capacity as an enabler, mentor, and facilitator, he actively foster innovation and growth within the sector. He spearheaded the establishment of India’s first Technical Centre dedicated to supporting space activities for startups, academia, and MSMEs. This centre has been instrumental in accelerating the development of cutting-edge technologies and bolstering the growth of India’s space sector.
He was awarded a United Nations Long term fellowship at the European Space Agency in The Netherlands. Before joining IN-SPACe, he was Associate Director of Space Applications Centre, Ahmedabad. He has an illustrious engineering and research career at the Space Applications Centre, Ahmedabad, where he designed and developed several indigenous microwave payload technologies and state-of-art space antenna systems for various ISRO communication, Navigational and Earth observation satellites. His major accomplishments include the development of India’s first constellation of 3 Microwave RADAR Imaging X band satellites for space-enabled disaster applications. Other significant contributions are the development of C band RADAR Imaging Satellite (RISAT1 & 1A), NASA-ISRO SAR and RADAR Altimeters for Chandrayaan 2 &3 mission.
He is fellow of INAE, IETE, ASI , Founder Chair of IEEE Gujarat Chapter AP/ MTTs, Past Chair of IMaRc 2017, IN-CAP2019, MAPCON 2023, IAiM2015. Currently Cochair of Gujarat IEEE AESS Chapter.
He is co-inventor of 14 patents and more than 170 papers. He is the recipient of several Awards i.e, IETE Raj Mitra Award (2008), IEEE Indian Council Outstanding Industry Award (2020), ISRO Performance Excellence Award (2015), Individual Merit (2012) & Five times Team Leadership awards for his contribution in ISRO space programs.
Sri. C S Rao
Chairman and Co-Founder, QuadGen Wireless Solutions Pvt Ltd.
Title of Talk:
Wireless 3.0: Pragmatic Adoption in the Age of AI, ML, and LLMs By C S RAO, Chairman and Co Founder, QuadGen Wireless Solutions Private Limited
Abstract:
The wireless industry in 2025 stands at the cusp of a transformative leap, as Artificial Intelligence (AI), Machine Learning (ML), and Large Language Models (LLMs) begin to reshape the network landscape. This talk explores a practical roadmap for Telcos over the next three years as they transition to Wireless 3.0—an era defined by intelligent, adaptive, and cloud-native networks. The focus will be on cutting-edge use cases of AI/ML and LLMs in network operations, deployment challenges, and actionable strategies for pragmatic adoption.
One key area of interest is improving signal coverage in the millimeter wave (mmWave) band—i.e., frequencies above 24 GHz and below 70 GHz—through technologies such as Intelligent Reflecting Surfaces (IRS) or Reconfigurable Intelligent Surfaces (RIS). These systems use metamaterials or phase-controlled antenna elements to adjust the phase and amplitude of incoming signals and reflect them constructively. Controlled via software-defined logic, they enable real-time adaptation to the environment. The role of AI/ML in optimizing and orchestrating these dynamic surfaces is crucial.
As we move toward an era of 10 Tbps capacity per square kilometer in RAN infrastructure, with Terabit IP-OTN and multi-terabit IP core networks built on containerized, cloud-native architectures, delivering gigabit speeds to end users—consuming 1 TB data per month across hundreds of millions of subscribers—poses significant operational support challenges for Telcos.
Building future-ready wireless infrastructures that balance innovation with operational flexibility, driven by softwarization, virtualization, and automation, is the compelling focus for adoption by next-generation Telcos evolving into Techcos.
Short Bio:
Mr. C. S. Rao is a distinguished leader and visionary in the telecommunications and information technology sectors, with a career spanning several decades marked by pioneering contributions and transformative leadership. He currently serves as the Chairman of QuadGen Wireless Solutions Inc., operating across the USA and India since 2010. His leadership roles have significantly shaped the evolution of the Indian telecom industry. From 2007 to 2016, he chaired the WiMAX Forum India, advocating for broadband wireless access. Dr. Rao was also an influential member of the Governing Board of the Cloud Computing Council of India between 2009 and 2013, driving the country’s digital and cloud infrastructure policy landscape.
His professional journey includes top executive roles such as President of Reliance Communications Ltd and key positions at British Telecom India and Intel India. Notably, he served as the Vice President of Lucent USA and Bell Labs USA from 1995 to 2003, and later became the President & CEO of Lucent Technologies India and Bell Labs India until 2008. Prior to that, he held senior positions at Tellabs USA and India, including Vice President Engineering and Managing Director from 1990 to 1995. His early contributions began at CDOT (Centre for Development of Telematics), where he was the General Manager from 1986 to 1990, playing a crucial role in shaping India’s telecom development initiatives.
Mr. Rao’s achievements are complemented by numerous honors. He is a Fellow of the renowned Bell Labs, USA, and holds a master’s degree from the Indian Institute of Technology (IIT), India, graduating in 1977. His leadership excellence has been recognized by awards such as the Business Leadership Award from ASSOCHAM and a National Research & Development Council award conferred by the Hon’ble President of India. He has also been honored with Corporate Leadership Awards from organizations including Tellabs, Intel USA, Lucent, and USA AT&T. In 2012, he was recognized as the Indian Telecom Person of the Year, a testament to his impact on the industry.
Among his significant achievements, Dr. Rao has been instrumental in the digital transformation of government IT applications in India. He launched the Bell Labs India center in 2004, the first of its kind outside the USA. He pioneered the 21st Century Network for BT in India, led the rollout of CDMA and 3G networks for Reliance Telecom, and spearheaded the launch of India’s first MLLN and ISDN networks. As a member of national policy and advisory councils, including the High-Level Committee on the National Optical Fiber Network (NOFN), he influenced critical decisions in broadband infrastructure. He has also contributed to Smart City policies, cloud computing strategies, and 5G network rollouts, working closely with the Government of India. His role in shaping national telecom and IT policy frameworks has been pivotal, with contributions through ASSOCHAM, CII, FICCI, and other leading bodies. Dr. Rao continues to serve as an honorary member of the Smart City Council of India, maintaining a strategic advisory presence in the country’s digital transformation journey.
Prof. Desmond Sim
Feng Chia University, Taiwan
Title of Presentation:
The Fascinating Journey of Laptop Antenna Design: From Single-Band WLAN to Multiband Wi-Fi 6E/7 Band
Abstract:
This Keynote presentation will commence with a discussion on the history of the laptop computer, followed by an overview of laptop antenna designs from the early 2000s. We’ll explore various design techniques for integrating the laptop antenna into the laptop cover and discuss methods for mitigating ground effects. Additionally, we’ll examine the use of metal casing or back covers for laptops, and strategies for integrating the antenna into full metal housings. Finally, we’ll introduce recent academic advancements, such as the hinge laptop antenna, 2-antenna MIMO for laptops, and developments in laptop antennas for the Wi-Fi 6E and Wi-Fi 7 bands. We’ll also discussthe inclusion of future 6G band (7 to 15 GHz) antennas into the Laptop.
Short Bio:
Prof. SIM Chow-Yen-Desmond was born in Singapore in Feb. 1971. He received a B.S. degree in electrical and electronic engineering from the University of Leicester, Leicester, UK, in 1998, and a Ph.D. degree in the radio system group from the University of Leicester, in 2003. Since 2003/07, he has been with the Feng Chia University, Taiwan, where he is currently a Distinguished Professor since 2017/08. His research interests mainly include small antenna designs and RFID applications, focusing on 5G sub 6GHz/mmWave antenna, RFID antenna, antenna array, and laptop antenna. He has published over 200 SCI journal papers based on the abovementioned research. Prof. Sim is a Fellow of the Institute of Engineering and Technology (FIET), a Senior Member of the IEEE Antennas and Propagation Society (APS), and a Life Member of the IAET. He was an Associate Editor (AE) of the IEEE Access during 2015/08-2022/01, and has served as the AE of IEEE AWPL during 2017/08-2023/08. He is now serving as the AE of IEEE Journal of RFID, IEEE Open Journal of Antenna and Propagation, and International Journal of RF and Microwave Computer-Aided Engineering. He has served as a member of organizing committees of many conferences, such as General Chair/Co-Chair and TPC Chair/Member, etc. He was invited to serve as the Workshop/Tutorial/Invited/Keynote in many conferences. He has served as the Chapter Chair of the IEEE AP-Society, Taipei Chapter (2016/2017) and the founding Chapter Chair of the IEEE Council of RFID, Taipei Chapter (2017-2020). He received the IEEE APS Outstanding Reviewer Award (IEEE Transaction Antennas and Propagation) for eight consecutive years between 2014 and 2021. He also received the Outstanding Associate Editor Award from the IEEE Antennas Wireless and Propagation Letters in July 2018. Prof. Sim has recently been appointed as the Distinguished Lecturer of the IEEE AP-Society, serving from 2024 to 2026.