Mysteries in Dielectric Resonator Modes and Some Techniques for Advanced Antenna Designs(APS Montréal)
Dielectric Resonator Antenna (DRA) has crossed a journey of about four decades and could gradually attract a larger group of researchers across the globe. This non-conducting ceramic structure with partially open boundary is full of mysteries in terms of its resonance behavior and feeding mechanisms. This talk will address some unveiled mysteries of DRA modes and possibilities of realizing novel antennas and feeds which could be broadly categorized into a contrasting pair - (1) unknown modes in known DRAs and (2) known modes in unknown DRAs. Category-1 describes a new radiating mode that was successfully demonstrated in a cylindrical geometry and its subsequent growth in terms of various applications. The challenge of addressing its boundary conditions and developments of advanced feeding mechanisms will be discussed. Category-2 deals with a different concept of hybrid/composite geometries where our known modes can be strategically employed in generating useful radiation patterns. They are primarily meant for low-profile wireless device. This ‘mode-reconfiguring technique’ will be addressed elaborately focusing on the potential scopes for the future research and development. In addition, this talk will try to address a few state-of-the-art techniques such as glue-free mount for DRA and a promising metal-dielectric hybrid subarray.
Date and Time
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- Date: 06 Apr 2022
- Time: 11:00 AM to 12:30 PM
- All times are (GMT-05:00) America/Montreal
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- 2500 chemin de polytechnique
- Polytechnique Montreal
- Montréal, Quebec
- Canada H3T1j4
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- Co-sponsored by Staracomm Montréal, IEEE Young Professionals, IEEE Montréal
- Starts 28 February 2022 11:00 AM
- Ends 06 April 2022 10:30 AM
- All times are (GMT-05:00) America/Montreal
- No Admission Charge
Speakers
Prof. Debatosh Guha
Biography:
Debatosh Guha is a Professor in Radio Physics and Electronics, University of Calcutta. He is the former HAL Chair Professor of Indian Institute of Technology, Kharagapur and former Director of the Centre for Research in Nanoscience and Nanotechnology, University of Calcutta, India.
He made fundamental contributions in introducing some novel techniques and engineering towards the development of microstrip and dielectric resonator antenna (DRA) technologies. Conceptualizing defected ground structure (DGS)-integration technique in printed antenna and arrays is one of them. He also introduced a new and potential radiating mode to cylindrical DRA, all being successful in real-life applications. He has been instrumental for thorough scientific investigations searching out possible sources of cross-polarized radiations and mitigating them. His techniques are being used in several industrial applications and by leading R&D Laboratories across the globe. He has also closely worked with some top industries and Universities. More than 200 technical papers in the leading journals and conferences along with a reference book published by Wiley, UK are to his credit. His research contributions have been featured in the recent editions of most of the text and handbooks in antenna domain.
Debatosh is Abdul Kalam Technology Innovation National Fellow. He is a Fellow of IEEE, Indian Academy of Sciences, Indian National Academy of Engineering, the National Academy of Sciences, India, the West Bengal Academy of Science and Technology, and a full member of Sigma Xi. He is a recipient of 1996 URSI Young Scientist Award, France; 2012 IEEE AP-S Raj Mittra Travel Grant award, Chicago; and 2016 IETE Ram Lal Wadhwa Award, India. He has served IEEE Transactions on Antennas and Propagation and IEEE Antennas and Wireless Propagation Letters as an associate editor. He has served IEEE AP-S Fields Award Committee (2017-2019) and IEEE AP-S MGA Committee (2021) as a member and IEEE Technical Committee on Antenna Measurement as a chair (2022). He has been selected as an IEEE Distinguished Lecturer by the IEEE AP Society for 2022-2024.