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Debatosh Guha

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Debatosh Guha
দেবতোষ গুহ
Debatosh Guha
NationalityIndian
Alma materInstitute of Radio Physics and Electronics, Rajabazar Science College
(University of Calcutta)
Notable workDefected Ground Structure (DGS) integration technique introduced to antenna engineering
Websitehttp://dguha.info

Debatosh Guha (Bengali:দেবতোষ গুহ ) is an Indian Antenna Researcher and a Professor in the Institute of Radio Physics and Electronics at the Rajabazar Science College,[1] University of Calcutta. He also served Indian Institute of Technology Kharagpur (IIT Khargapur) as a HAL Chair Professor for a period during 2015-2016.

Education and Career

He received the B. Tech. and M. Tech. degrees in Radio Physics and Electronics from the Rajabazar Science College campus of University of Calcutta in 1987 and 1989, respectively. He spent about 8 months at a wireless industry of Webel-Philips in Kolkata before receiving a senior research fellowship from the CSIR, Government of India, and obtained his Ph. D. degree in microwave engineering in 1994. In the same year, Guha was appointed as an assistant professor in Radio Physics and Electronics at the University of Calcutta. He had undertaken his post-doctoral research at the Royal Military College of Canada, the Canadian Defense University at Kingston, Ontario[2]

At the University of Calcutta, he has been a department head (2016–2018) and Director of the Centre for Research in Nanoscience and Nanotechnology[3] (2017- 2019).

Guha has been selected for Abdul Kalam Technology Innovation National Fellowship[4] in 2020 and was elected a fellow of IEEE in 2017, the Indian Academy of Sciences in 2021, the National Academy of Sciences, India in 2015, and the Indian National Academy of Engineering in 2013. He has been a visiting professor at the Royal Military College of Canada (2007, 2008, 2010, 2012, 2013, 2017, 2018) and visiting scientists/invited speaker to several foreign universities viz. the University of Houston (2002), Queen Mary University of London (2006), University of Bath (2006), Communication Research Centre, Ottawa (2006), University of Alberta (2012), San Diego State University (2014), Karlsruhe Institute of Technology (2014), Chuo University Tokyo (2014), City University of Hong Kong (2016), University of Waterloo (2017)[5]

A recipient of the Jawaharlal Nehru Memorial Fund Prize, he was awarded the 1996 URSI Young Scientist Award at Lille, France; 2012 Raj Mitra Travel Grant Award of IEEE AP Society at Chicago; 2016 IETE Ram Lal Wadhwa Award at New Delhi; and 2020 IPCR’s Acharya P C Ray Memorial Award for Distinguished Achievements in Innovations in Science and Technology at Kolkata. He has served the IEEE Fields Award Committee of IEEE AP-Society as a member (2018-2019) and the Indian Joint National Committee as URSI Commission-B Lead for 2015-2020. He has served both IEEE Transactions on Antennas and Propagation and IEEE Antennas and Wireless Propagation Letters as an associate editor.[6]

He has been closely involved with IEEE and URSI activities. He served IEEE Kolkata Section as the chair (2013-2014)[7] and IEEE AP/MTT Kolkata Chapter as the founding Chair.[8] In 2007, he introduced IEEE Applied Electromagnetics Conference (AEMC) as a major biennial International meeting in India and co-chaired its first three sessions in 2007, 2009, and 2011. In 2010, he established IEEE Indian Antenna Week (IAW) as an annual International Antenna Workshop with fabulous support from the IEEE AP-Society and chaired the first two editions in Mayfair Puri (2010) and Hyatt Regency Kolkata (2011).[9][10][11] He has also been associated with the organisations of several international events including APCAP, EMTS, EUCAP, URSI-GASS, URSI AP-RASC.

Awards and Honours

With Dr. A. S. Kiran Kumar (front, left), Chairman, ISRO (IETE Award Ceremony 2016)

Acharyya Prafulla Chandra Ray Memorial Award for Distinguished Achievements in Innovations in Science and Technology (IPCR, Kolkata) 2020

Abdul Kalam Technology Innovation National Fellow (2020)[12]

Fellow, IEEE (2017)[13] Fellow, Indian Academy of Sciences (2021)♦ Fellow, The National Academy of Sciences, India (2015)[14] Fellow, Indian National Academy of Engineering (2013)[15]

Fellow, West Bengal Academy of Science and Technology (2015)[16] ♦ Fellow, Institution of Electronics and Telecommunication Engineers (2012)[17]

IETE Ram Lal Wadhwa Award (New Delhi, 2016)[18] ♦ IEEE AP-S Raj Mittra Travel Grant Award (Chicago 2012)

URSI Young Scientist Award (Lille, France 1996) ♦ Jawaharlal Nehru Memorial Fund Prize (New Delhi, 1984)

Research and Published works

Guha and his research group have contributed towards the development of science and engineering for both microstrip antenna and Dielectric Resonator Antenna (DRA). Guha introduced the concept of Defected Ground Structure (DGS) integration technique to microstrip antenna[19] and developed the theoretical understanding followed by experiments. His group explained the mechanism of weakening the cross-pol generating modes and mitigating two major issues in microstrip elements and arrays: (i) high cross-polarized radiations[20] and (ii) mutual coupling among array elements[21] causing scan-blindness in the radiation patterns.[22]

A long challenging issue of high cross-polarized radiations occurring across the diagonal planes of a microstrip patch has been resolved by his group in 2020. The source of the problem has been theoretically identified along with some representative solutions in two different ground current conditions.[23][24]

His original contributions to Dielectric Resonator Antennas (DRAs) encompass (i) introduction of a new and a truly useful radiating mode in cylindrical DRAs[25] and (ii) concept of multi-mode engineering - a more theory-based methodology using composite and hybrid structures,[26][27][28] which changed the traditional concept of wideband or ultra-wideband DRA designs. To establish the viability of the new mode, he has developed new feeding techniques [29][30][31] which should ideally satisfy the requirement of integratable feed for mm-wave tiny antennas.[citation needed]

Book

Microstrip and Printed Antennas: New Trends, Techniques, and Applications, Wiley UK, 2011[32]

References

  1. ^ "Welcome to Institute of Radio Physics and Electronics". www.irpel.org. Archived from the original on 6 February 2016. Retrieved 5 May 2016.
  2. ^ "Royal Military College of Canada". www.rmc-cmr.ca/.
  3. ^ "Welcome to CRNN". www.crnncu.org/.
  4. ^ "Abdul Kalam Technology Innovation National Fellowship".
  5. ^ "Japan URSI". www.ursi.jp/.
  6. ^ "TAP Editorial Board". www.ieeeaps.org/people/editorial-board/.
  7. ^ "IEEE Kolkata Section". ewh.ieee.org. Retrieved 5 May 2016.
  8. ^ "Welcome to IEEEAPMTT". ewh.ieee.org. Retrieved 5 May 2016.
  9. ^ Shen, Zhongxiang (1 February 2012). "Chapter News". IEEE Antennas and Propagation Magazine. 54 (1): 115–120. Bibcode:2012IAPM...54..115S. doi:10.1109/MAP.2012.6202519. ISSN 1045-9243.
  10. ^ "Indian Antenna Week : Committee". www.antweek.org. Retrieved 5 May 2016.
  11. ^ "Indian Antenna Week | A workshop on advanced antenna technology | Hyatt Regency | Dec 18 - 22 | Kolkata India". www.antweek.org. Retrieved 5 May 2016.
  12. ^ "Abdul Kalam Technology Innovation National Fellowship".
  13. ^ "IEEE Fellow Directory". www.ieee.org/membership/fellows/fellows-directory.html/.
  14. ^ "NASI Fellow Directory". www.nasi.org.in/fellows.asp?RsFilter=P/.
  15. ^ "INAE Fellow Directory". www.inae.in/search-fellow /.
  16. ^ "West Bengal Academy of Science and Technology"
  17. ^ "IETE home". www.iete.org/.
  18. ^ IETE AWARDEES-2016,IETE, 11 October 2016
  19. ^ Guha, D.; Biswas, M.; Antar, Y. M. M. (1 January 2005). "Microstrip patch antenna with defected ground structure for cross polarization suppression". IEEE Antennas and Wireless Propagation Letters. 4 (1): 455–458. Bibcode:2005IAWPL...4..455G. doi:10.1109/LAWP.2005.860211. ISSN 1536-1225.
  20. ^ Guha, D.; Biswas, M.; Antar, Y. M. M. (1 January 2005). "Microstrip patch antenna with defected ground structure for cross polarization suppression". IEEE Antennas and Wireless Propagation Letters. 4 (1): 455–458. Bibcode:2005IAWPL...4..455G. doi:10.1109/LAWP.2005.860211. ISSN 1536-1225.
  21. ^ Guha, D.; Biswas, S.; Biswas, M.; Siddiqui, J. Y.; Antar, Y. M. M. (1 December 2006). "Concentric Ring-Shaped Defected Ground Structures for Microstrip Applications". IEEE Antennas and Wireless Propagation Letters. 5 (1): 402–405. Bibcode:2006IAWPL...5..402G. doi:10.1109/LAWP.2006.880691. ISSN 1536-1225.
  22. ^ D.-B. Hou, et al., "Elimination of scan blindness with compact defected ground structures in microstrip phased array," IET Microwaves, Antennas and Propagation, vol. 3, no. 2, pp. 269 – 275, March 2009
  23. ^ Dutta, Debi; Rafidul, Sk; Guha, Debatosh; Kumar, C (January 2020). "Suppression of Cross-Polarized Fields of Microstrip Patch across All Skewed and Orthogonal Radiation Planes". IEEE Antennas Wireless Propagat. Lett. 19 (1): 99–103.
  24. ^ Pasha, I.; Kumar, C.; Guha, Debatosh (June 2020). "Mitigating High Cross-Polarized Radiation Issues over the Diagonal Planes of Microstrip Patches". IEEE Trans. Antennas Propagat. 68 (6): 4950–4954.
  25. ^ Debatosh Guha, Archita Banerjee, C. Kumar, Y. Antar, "Higher Order Mode for High Gain Broadside Radiation from Cylindrical Dielectric Resonator Antennas," IEEE Trans. Antennas Propagat., vol.60, no. 1, pp. 71-77, Jan. 2012
  26. ^ Guha, Debatosh; Antar, Y. (September 2006). "Four-element cylindrical dielectric resonator antenna for wideband monopole-like radiation". IEEE Trans. Antennas Propagat. 54 (9): 2657–2662.
  27. ^ Debatosh Guha and Y. Antar, "New half-hemispherical dielectric resonator antenna for broadband monopole-type radiation," IEEE Trans. Antennas Propagat., vol.54, no. 12, pp. 3621-3628, Dec. 2006
  28. ^ Debatosh Guha, et al., "Improved design guidelines for the ultra wideband monopole-dielectric resonator antenna," IEEE Antennas Wireless Propagat. Lett., vol.5, pp. 373-376, Dec. 2006
  29. ^ Debatosh Guha, et al., "New Technique to Excite Higher Order Radiating Mode in a Cylindrical Dielectric Resonator Antenna," IEEE Antennas Wireless Propagat. Lett., vol.13, pp. 15-18, Dec. 2014
  30. ^ Debatosh Guha, Poulomi Gupta, and C. Kumar, "Dualband Cylindrical Dielectric Resonator Antenna Employing HEM11δ and HEM12δ Modes Excited by New Composite Aperture," IEEE Trans. Antennas Propagat., vol.63, no. 1, pp. 433-438, Jan. 2015
  31. ^ Poulomi Gupta, Debatosh Guha, and C. Kumar, "Dielectric Resonator Working as Feed as well as Antenna: New Concept for Dual Mode Dualband Improved Design," IEEE Trans. Antennas Propagat., vol.64, no. 4, pp. 1497-1502, Apr. 2016
  32. ^ Microstrip and Printed Antennas: New Trends, Techniques and Applications, February 2011
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