apurbabhattacharya.jpg Apurba Narayan Bhattacharya
Professor of Practice, Department of Electrical Engineering, IIT Bombay
Former Distinguished Scientist and Associate Director, SAC, ISRO
    Distinguished Professor, IIT Jodhpur

Contact Information

Room No EA119, EE Annex Building
Indian Institute of Technology Bombay, Powai
Mumbai 400076, India
Email : apurbabhattacharya@iitb.ac.in

Telephone :(O) +912225767418

Area of Expertise and Research Interests

Microwave and mm-wave devices, MMICs and Systems, GaN HEMT and MMIC
Satellite Communication, Navigation and Microwave Remote Sensing payloads
Advanced Packaging Technologies - LTCC, WLP
Devices for Quantum Communication

Professional Experience

Served as Distinguished Scientist and Associate Director at Space Applications Centre, ISRO prior to joining IIT Jodhpur in May 2024 as Distinguished Professor. Joined ISRO in September 1987, soon after graduation in Electronics and Telecommunication Engineering from Jadavpur University. I have more than thirty six years of professional experience in ISRO, one of the leading space agencies of the world.

At Space Applications Centre, ISRO, I was leading research and technology developments for realization of satellite payloads for advanced Communication, Navigation, Remote Sensing and Planetary missions of ISRO in different capacities - Project Manager, Head of Division, Associate Project Director, Group Director, Deputy Director and Associate Director. I led design and realization of electronics systems of more than forty communication, navigation, remote sensing and planetary missions.

My major achievement in ISRO is design and realization of critical technologies and systems for space – Satellite Communication payloads, Microwave and mm-wave devices, MMICs and Systems, Advanced Packaging Technologies, Devices for Quantum communication. Established four important labs in ISRO – RF GaN HEMT fab & design lab, Advanced packaging lab, Quantum devices & Photonic Integrated Circuit lab and Space environment simulation lab. Delivered state of the art systems for ISRO missions using these technologies, also they are major enabler for future space missions.

Served as Chairperson and member of many ISRO committees as well as several academic and research committees
ISRO committees

  1. [1] Co-Chair, JPC–STC-IIT Kharagpur – 2022 - 2024
  2. [2] Alt. Chair, ISRO Technology and Research Board – 2022 - 2024
  3. [3] Alt. Chair, ISRO Sponsored Research (Respond) Review committee – 2022 - 2024
  4. [4] Chairman, Committee for Process Audit of SCL 180nm CMOS fab. - 2018 - 2021
  5. [5] Member, Apex Committee for monitoring and guiding the interactions between ISRO-IIST – 2018 – 2020
  6. [6] Member, ISRO Selection committee for IIT campus recruitment – 2017 - 2018
  7. [7] Chairman/Member, ISRO Recruitment and review committees – 2016 - 2024

Other Academic and Research committees

  1. [1] Board of Governors, IIIT Kalyani – 2021 - 2024
  2. [2] Board of Studies Undergraduate and Postgraduate Programs, DAIICT, Ahmedabad – 2019 – 2024
  3. [3] Awards committee of Astronautical Society of India and IEEE MAPCON - 2024
  4. [4] Project Monitoring and Review Committee, SSPL-DRDO – 2018 - 2024
  5. [5] Technical Review and Advisory Committee, MeitY – Since 2018
  6. [6] Screening Committee NQM-DST - 2024

Education

B. E. in Electronics and Telecommunication Engineering, Jadavpur University (1987)

Selected publications

  1. [1] Pragya Kushwaha, Adarsh Jain, Prashant Varma, Punam Pradeep Kumar, Apurba N. Bhattacharya, "Impact of BB84 QKD transmitter's parameter mismatch on secure key generation rate", Photonic Network Communications, 04 February 2024
  2. [2] Chiranjit Karmakar, R. K. Kaneriya, Megha Malasi, Shivam Rathod, Devendra Kumar, Sujay Chakravarty, R. B. Upadhyay, Punam Kumar, A. N. Bhattacharya, U. S. Joshi, "Enhanced quantum oscillations and scattering effect in quaternary InAlGaN/GaN two-dimensional electron gas", Applied Physics Letters 122, 16 May 2023
  3. [3] R.K. Kaneriya, Chiranjit Karmakar, Gunjan Rastogi, M.R. Patel, R.B. Upadhyay, Punam Kumar, A.N. Bhattacharya: "Influence of AlN spacer and GaN cap layer in GaN heterostructure for RF HEMT applications" Microelectronic Engineering, Volume 255, 20 January 2022
  4. [4] Gunjan Rastogi, M. Krishna Chaitanya, Sanjeev Khare, Ekta Yadav, R.K. Kaneriya, R. B. Upadhyay, Punam Pradeep Kumar, A.N. Bhattacharya: "Performance improvement of Al0.3Ga0.7N/AlN/GaN HEMTs using Nitrogen pre-treated Si3N4 passivation" Microelectronic Engineering, Volume 249, 21 August 2021
  5. [5] R.K. Kaneriya, Gunjan Rastogi, P.K. Basu, R.B. Upadhyay, A.N. Bhattacharya: "Room temperature photon induced electrical tuning of intersubband transition in GaN HEMT for terahertz applications" Microelectronic Engineering, Volume 233, 15 September 2020
  6. [6] Gunjan Rastogi, R K Kaneriya, R B Upadhyay, A N Bhattacharya: "Optimization of Ni/Au Schottky Contacts on Al0.3Ga0.7N/AlN/GaN heterostructure for RF Applications" International Journal of Nanoscience and Nanotechnology, Volume 6, 2020, pp 8-15
  7. [7] Sanket Patel, Deep Kumar Pandey, Shrikant A. Patil, Hitesh M. Patel, Arun Bindal, R. S. Sharma, and A. N. Bhattacharya: "Solder Immersion Process of Ceramic Column Grid Array Package Assembly for Space Applications" IEEE Transactions on Components, Packaging and Manufacturing Technology, Vol. 10, No. 4, April 2020, pp 717-722
  8. [8] Gunjan Rastogi, R K Kaneriya, Santanu Sinha, R B Upadhyay, A N Bhattacharya: "Physics based simulation for studying the impact of contact resistance on DC and RF characteristics of AlGaN/AlN/GaN HEMT" AGU Journal of Radio Science, October 2019
  9. [9] R. K. Kaneriya, Gunjan Rastogi, P. K. Basu, R. B. Upadhyay, and A. N. Bhattacharya: "Intersubband Device Modeling of Gallium Nitride High Electron Mobility Transistor for Terahertz Applications" AGU Journal of Radio Science, December 2019, pp1172-1180
  10. [10] Maulik L. Bhavsar, Rakesh Sharma, and Apurba Bhattacharya: "Monolithic Ka to Ku-Band All Balanced Sub-Harmonic Resistive MHEMT Mixer for Satellite Transponder" IEEE Microwave and Wireless Components Letters, Vol 25, No. 5, May 2015, pp 316-318
  11. [11] Ekta Saini, Santanu Sinha, Punam Pradeep Kumar, A N Bhattacharya: "X-Band High Power GaN SPDT Switch MMIC for Space based Radar Front End" 2023 IEEE Wireless Antenna and Microwave Symposium (WAMS), June 2023
  12. [12] Pragya Kushwaha, Adarsh Jain, Santanu Sinha, Prashant Varma, Punam Pradeep Kumar, Apurba N. Bhattacharya: "Impact of BB84 QKD Transmitter's Wavelength Mismatch on Secure Key Generation Rate" 2022 IEEE International Conference on Advanced Networks and Telecommunications Systems, December 2022
  13. [13] Anmol Nijhawan, Santanu Sinha, HariMohan Singh, Punam Pradeep Kumar, A N Bhattacharya: "Optimal design of embedded passive components for RF circuits in LTCC" 2021 IEEE MTT-S International Microwave and RF Conference, 17-19 December 2021
  14. [14] Pragya Kushwaha, Santanu Sinha, Chiranjit K Karmakar, Manish Sahu, Rakesh K Kaneriya, Punam Pradeep Kumar, and Apurba Bhattacharya: "Characterization of GaN HEMT at Cryogenic Temperatures" 2021 IEEE MTT-S International Microwave and RF Conference, 17-19 December 2021
  15. [15] Harsh C Trivedi, Anmol Nijhawan, Santanu Sinha, A N Bhattacharya: "High-Q Embedded LTCC Inductors for high performance RF MCMs" 2020 IEEE International Conference on Electronics, Computing and Communication Technologies, July 2020, Bangalore, India
  16. [16] R K Kaneriya, Gunjan Rastogi, P K Basu, R B Upadhyay, A N Bhattacharya: "Modeling of electrically tunable metamaterial embedded intersubband transitions in GaN HEMT for terahertz applications" Union Radio-Scientifique Internationale Regional Conference on Radio Science 2020, (URSI-RCRS 2020), IIT (BHU), Varanasi, India, 12 - 14 February, 2020
  17. [17] Gunjan Rastogi, R K Kaneria, Santanu Sinha, R B Upadhyay, A N Bhattacharya: "Physics based simulation for studying the impact of contact resistance on DC and RF characteristics of AlGaN/AlN/GaN HEMT" Proceedings of URSI Asia-Pacific Radio Science Conference, March, 2019
  18. [18] R K Kaneriya, Gunjan Rastogi, P K Basu, R B Upadhyay, A N Bhattacharya: "Physics based device modelling of GaN High Electron Mobility Transistor (HEMT) for Terahertz Applications" Proceedings of URSI Asia-Pacific Radio Science Conference, March, 2019
  19. [19] Prolay Verma, Anshul Joshi, Puja Srivastava, Dinesh K. Singh, Apurba N. Bhattacharya, K. S. Parikh: "MMIC based Up-converter for Ku-band Data Transmitter" 2019 IEEE MTT-S International Microwave and RF Conference, December, 2019
  20. [20] Prolay Verma, Puja Srivastava, Dinesh K Singh, Apurba N Bhattacharya: "Low phase error Ku-band 5-bit digital attenuator MMIC" 2017 IEEE MTT-S International Microwave and RF Conference, December, 2017
  21. [21] Maulik L. Bhavsar, Prakhar Kumar, Ishan Chaturvedi, Puja Srivastava, D. K. Singh, Apurba Bhattacharya: "LTCC based Multi-Chip-Modules at C-band and Ka-band for satellite payloads" 2017 IEEE MTT-S International Microwave and RF Conference (IMaRC), December, 2017
  22. [22] Maulik L. Bhavsar, Puja Srivastava, Apurba Bhattacharya: "A Ku-band 1-Watt two stage Power Amplifier MMIC for Space with 52% Power Added Efficiency" Proceedings of the Asia-Pacific Microwave Conference 2016, December 2016, New Delhi, India
  23. [23] Kishor Dalavi, Chinmoy Saha, Basudeb Ghosh, A.Bhattacharya, A.Sharma, R.Dey: "Substrate Integrated Waveguide Slot Array for Millimeter-wave Space Applications" 2015 6th International Conference on Computers and Devices for Communication (CODEC), December 2015, Kolkata India
  24. [24] Ravi Teja N, Prolay Verma, Ajay Kumar, A N Bhattacharya: "A Broadband High Linearity Voltage Variable Attenuator MMIC" 2015 6th International Conference on Computers and Devices for Communication (CODEC), December 2015, Kolkata India
  25. [25] Anant Sharma, Ajay Kumar and A. N. Bhattacharya: "A Ku-Band 6-bit Digital Phase Shifter MMIC for Phased Array Antenna Systems" 2015 IEEE International Microwave and RF Conference (IMaRC), December 2015, Hyderabad, India
  26. [26] Prolay Verma, Ajay Kumar, A.N. Bhattacharya, Rajkumar Arora: "1-7 GHz Wideband Low Loss SPDT Switch MMIC" 2015 IEEE International Conference on Electronics, Computing and Communication Technologies, July 2015, Bangalore, India
  27. [27] Maulik L. Bhavsar, A. N. Bhattacharya, and Rajkumar Arora: "Design and comparison of MHEMT and Diode based K-band Subharmonically pumped Mixer MMICs" 2014 IEEE International Microwave and RF Conference, December 2014, Bangalore, India
  28. [28] Abhay Jain, Pritam Sinha, R S Sharma, A N Bhattacharya: "A Ka-Band Double Balanced Upconverter MMIC For Space Application" 5th International Conference on Computers and devices for communication (CODEC), December 2012
  29. [29] Prolay Verma, Anant Sharma, R. S. Sharma, A. N. Bhattacharya: "Ka-band MEMS SPDT Switch GaAs MMIC" 9th International Radar Symposium India - 2013 (IRSI - 13), December 2013, Bangalore, India
  30. [30] Abhay Jain, A. Banik, A. N. Bhattacharya: "A 3.5GHz Frequency Divider with Integrated Phase Detector MMIC" 9th Int. Conference on Microwaves, Antenna, Propagation & Remote Sensing, 2013
  31. [31] Sona Viswakarma, A N Bhattacharya: "Design and realization of a low loss, high isolation C-band balanced subharmonic mixer" IEEE applied Electromagnetics Conference and IEEE Antenna week 2011, December 18-22, 2011, Kolkata
  32. [32] Maulik Bhavsar, A. N. Bhattacharya, S M Srivastavs, V K Garg: "Double Balanced Monolithic Downconverter with Resistive PHEMT Mixer for Satellite Transponder" Asia Pacific Microwave Conference, 2009, APMC- 2009, December 2005, Suzhou, China
  33. [33] A. Bhattacharya, M. Bhavsar, J. Thakkar, S. M. Srivastava, V. K. Garg: "Highly integrated MMIC chipset for Ku-band satellite transponder" International Astronautical Congress-2008, September 2008, Glasgow, Scotland
  34. [34] A. Bhattacharya, J. Thakkar, S. M. Srivastava, V. K. Garg: "Design of MMIC Variable Gain Amplifiers with Analog and Digital Gain Control for Satellite Transponder" International Conference on Computers and Devices for Communication: CODEC-06, December 2006
  35. [35] A. Bhattacharya, M. Bhavsar, J. Thakkar, S. M. Srivastava and V. K. Garg: "Advanced High Performance MMICs for Satellite Transponder" Asia Pacific Microwave Conference, 2005, APMC-05, December 2005, Suzhou, China
  36. [36] A. Bhattacharya, S. M. Srivastava, V. K. Garg: "Design of X-band Ultra Low Noise Amplifier with integrated waveguide input" International Conference on Computers and Devices for Communication 2004, December 2004
  37. [37] A. Bhattacharya, S. M. Srivastava, V. K. Garg: "Spurious and LO harmonic rejection in a balanced subharmonic mixer at Ku-band for satellite transponder" Asia Pacific Microwave Conference, 2004, APMC-04, December 2004

Selected invited talks

  1. [38] "Receivers & Front-end active systems for Satellite Payloads: Recent Advances", IIT Kharagpur, 2010
  2. [39] "Value of research in industry and the role of academia and benefits - with reference to satellite payload microwave and millimeter-wave systems", CEN, IIT-Bombay, December 2011
  3. [40] "Multifunction MMICs and MCMs for Microwave and millimeter wave space applications", Invited talk at workshop, IEEE MTT-S International Microwave and RF Conference-2014, December 2014
  4. [41] "Microwave and millimeter wave MMIC SoC and SiP at Space Applications Centre", ICEE-2014, IISc, Bangalore
  5. [42] "Microwave and mm-wave devices and systems for space applications", Workshop on Frontiers of Excellence in Wide and Ultrawide Bandgap Semiconductors and Electronic Systems, December 14-15, 2019, IIT Bombay
  6. [43] "Devices and Systems for Space", National Seminar on 'Semiconductor in India: Challenges and Opportunity', Organized by DST-GoG, IESA, February 07-08, 2023
  7. [44] "Semi-X for Space - Advanced SATCOM, Navigation, Remote Sensing and Planetary Missions", November 13-15, 2024. IIT Bombay

Book Chapter

  1. [45] Rakesh Kaneriya, Gunjan Rastogi, Palash Basu, Rajesh Upadhyay and Apurba Bhattacharya
    A Novel Approach for Room-Temperature Intersubband Transition in GaN HEMT for Terahertz Applications Book Chapter in "Terahertz Technology", July 2021, DOI: 10.5772/Intechopen.98435

Patent in use

  1. [46] Patent No. IN 389511; A Method of Non-contact Hermetic Sealing of LTCC Modules with Pulsed Laser dated 17/02/2022

Selected Technology Reports

  1. [47] Process audit and qualification of 180nm CMOS fabrication process April 2021
  2. [48] Surface Acoustic Wave (SAW) filters and modules for Space Applications January 2021
  3. [49] Design Rules for SAC LTCC Process October 2019
  4. [50] Process Design Kit (PDK) for SAC LTCC Process November 2018
  5. [51] Monolithic Microwave Integrated Circuits for Space Applications May 2016