Advances in Microwave Engineering

About the FDP:

Dr. APJ Abdul Kalam Technical University (AKTU), Lucknow organized AKTU-AICTE sponsored 05-day Faculty Development Programme (FDP) on “Advances in Microwave Engineering (AME-19)” from 8^th to 12^th June, 2019. The FDP is designed to bring together under the same canopy the researchers, academia and national laboratories from different parts of the country for exchanging and sharing the recent developments in the field of MICROWAVE ENGINEERING.

DAY 1 (08/06/2019)

• Inauguration:

• The FDP was inaugurated by Prof. Vinay Kumar Pathak, Hon’ble Vice-Chancellor, Dr. APJ Abdul Kalam Technical University along with Honorable Chief Guest Dr. SUM Reddy, Director (MTRDC, DRDO, Bangaluru), and other dignitaries including Prof. Subal Kar (Retd. Professor, Culcutta Univerisity, Kolkata), Prof. B.N. Basu (Retd. Professor & Head, Dept. of Electronics Engg., IT-BHU, Varanasi), Dr. SK Dutta (Associate Director, MTRDC-DRDO, Bangaluru),  Dr. L.M. Joshi (Ex-Chief Scientist from Central Electronics Engineering Research Institute(CEERI), Pilani Rajasthan), Prof. Manish Gaur (Director, Center for Advanced Studies, Dr. APJ AKTU, Lucknow), Dr. Rajiv Kumar Singh (Associate Dean, PG Studies & Research). All the dignitaries shared their views and experiences and put on record the best wishes for successful conduction of the FDP.

• Session I 
• Report: 

Professor Subal Kar obtained B.Sc.(Hons.) in Physics from St. Edmunds’ College, Gauhati University and B.Tech., M.Tech., Ph.D (Tech.) from the Institute of Radio Physics and Electronics (IRPE), Calcutta University (C.U). He was Professor and Head of the IRPE, CU and taught Microwave Engineering for 33 years. He has published a large number of research papers in peer reviewed international journals and presented invited papers/talks in France, Japan, China, Switzerland, Italy, U.K and U.S.A.

Professor (Dr.) Subal Kar, an eminent researcher and world renowned Professor of microwave engineering from Calcutta Univeristy, Kolkata elaborated following topics  in details during the session:

• Teaching of microwave engineering- needing a paradigm change.
• Electromagnetism including metamaterials
• Microwave and millimeter-wave engineering
• THz imaging, optical communication, and high energy physics.

Dr. S.U.M. Reddy, Director (MTRDC-DRDO, Bangalore), holds an M. Tech. in Electronics from Osmania University and Ph. D. specializing in microwave tubes from the Institute of Technology, Banaras Hindu University, Varanasi.

At MTRDC, he has contributed to projects and technologies for developing microwave tubes, modules, transmitters and systems that are used in radars and electronic warfare equipment. Dr. S.U.M. Reddy elaborated following topics  in details during the session:

• High power microwave.
• Microwave tube in Indian context.
• High-power high-frequency devices for defence.

• Session II 
• Report:

Dr. Subrata Kumar Datta obtained B. E. degree in Electronics and Telecommunication Engineering in 1989 from
Bengal Engineering College, Shibpur, India, and M. Tech and Ph. D. degrees in Microwave Engineering in 1991           and 1999, respectively, from the IIT-BHU, Varanasi, India. He is Associate Director of Microwave Tube Research      and Development Centre (MTRDC) in DRDO. He is a member of the National Academy of Sciences India. He is a       Fellow of the IETE of India, Institution of Engineers India and a Senior Member of IEEE. He is the founder         General Secretary and a Fellow of the Vacuum Electronic Devices and Applications Society (VEDAS), India.

Dr. Subrata Kumar Datta Associate Director of Microwave Tube Research  and Development Centre (MTRDC) in DRDO elaborated following topics in details during the session:

• • Microwave radiation safety standards.
  • Computer-aided design and development of Microwave Tubes.
  • Biological effects of microwaves.
  • Studies on electromagnetic wave propagation in microwave circuits. 

• Session III
• Report: 
• 

Professor Baidyanath Basu (B.N. Basu) received B. Tech., M. Tech. and Ph. D degrees from the Institute of Radiophysics and Electronics, Calcutta University in 1965, 1966 and 1976, respectively. He was superannuated as Professor & Head of Electronics Engineering Department and Coordinator of Centre of Research in Microwave Tubes (CRMT) at Institute of Technology, Banaras Hindu University (BHU), (now known as Indian Institute of Technology (IIT)-BHU), India. Presently he is Adjunct Professor at Sir JC Bose School of Engineering, Supreme Knowledge Foundation Group of Institutions, Mankundu, West Bengal, India. Professor Basu has authored (or co-authored) around 125 research papers in journals of international repute (including 40 in IEEE Transactions) and 6 monograph chapters in the area of vacuum electron devices (microwave tubes). The following topic have been elaborated in details during the session:

• National Scenario of R&D in microwave tube.

DAY 2 (09/06/2019)

• Session I 
• Report:

Dr. LM Joshi is Ex-Chief Scientist from Central Electronics Engineering Research Institute(CEERI), Pilani Rajasthan. He did his M. Sc. in Physics from Kumaon University, Nainital and Ph. D in Electronics Engineering from Institute of Technology, BHU, Varanasi.  He joined CEERI in 1979 and is continued there till May, 2018. Dr. Joshi has visited Lancaster University (United Kingdom), FZK, Karlsruhe and DESY Hamburg (Germany), Stanford University (USA) and Sweden as visiting Scientist where he worked in R&D related to CCTWT, Gyrotron and Klystrons. He is past National President of   Vacuum Electronic Devices & Systems (VEDA) Society and member of National Executive Council of Indian Vacuum Society. In the session, he elaborated following topics in details.

• Power klystrons for charged particles acceleration.

• Session II 
• Report:

Dr. AK Sinha received B.Sc. (Hons.), M.Sc. and  Ph.D. degrees, all from Ranchi University, Ranchi  in 1973, 1975 and 1986, respectively. He was Ex-Chief Scientist in Microwave Tubes Area, CSIR-CEERI,  Pilani, where served as Project  Leader/ Activity Coordinator/ Head of  the Gyrotron activity till 31 July, 2014.Under his leadership Gyrotron Activity was started and developed at CSIR-EERI, Pilani. After superannuation on 31 July, 2014, he worked  as a Consultant/ Emeritus Scientist Fellow at CSIR-CEERI  till August 2018 .  Dr. AK Sinha  authored/co-authored more than 250 research papers in peer-reviewed national and international journals and conference proceeding. In this session he elaborated following topic in details.

• Microwave tubes: Prospect in 21st century.

• Session III 
• Report:

Dr. A.K. Sinha received B.Sc. (Hons.), M.Sc. and  Ph.D. degrees, all from Ranchi University, Ranchi  in 1973, 1975 and 1986, respectively. He was Ex-Chief Scientist in Microwave Tubes Area, CSIR-CEERI,  Pilani, where served as Project  Leader/ Activity Coordinator/ Head of  the Gyrotron activity till 31 July, 2014.Under his leadership Gyrotron Activity was started and developed at CSIR-EERI, Pilani. After superannuation on 31 July, 2014, he worked  as a Consultant/ Emeritus Scientist Fellow at CSIR-CEERI  till August 2018 .  Dr. A.K. Sinha  authored/co-authored more than 250 research papers in peer-reviewed national and international journals and conference proceeding. In this session, he elaborated following topic in details.

• Scientific temperature.

• Session IV
• Report:

Prof. B.N. Basu delivered  his lecture on electromagnetic boundary conditions. Starting from the fundamentals, he cleared many doubts of the participants. He discussed all the related theories of the microwave engineering during the session.

DAY 3 (10/06/2019)

• Session I
• Report:

Mr. S. Chakarborty from CEERI Pilani discussed  revisiting the fundamental concepts of antennas encompassing the use of HFSS software. He made the participant clear about use of microwave simulation tools. Mr. S. Chakarborty  has explained following topics during the session:

• Quasi-Planar Composite Microstrip Antenna.
• Symmetrical Flat-Top Radiation With High Gain and Low Cross Polarization.

• Session II
• Report:

The topic of “Relevance of TWTs in the era of 5G ” was discussed during the second session by the speaker  Mr. S. Chakarborty from CEERI Pilani. The following topics have been elaborated in details during the session:

• Importance of TWTs in next generation technology. 
• Bandwidth enhancement techniques.

• Session III
• Report:

The topic of “Some Glimpses of New Techniques for Generation of Flat-Top Radiation Patterns from Antenna Arrays and Antennas” was discussed during this session by the speaker – Mr. S. Chakarborty from CEERI Pilani. Generation of Flat-Top Radiation Patterns was discussed in detail. The following topics have been elaborated in details during the session.

• Beam-Switching Antenna Array.
• MMPTE Approach for Synthesis of Flat-Top Radiation Patterns.
• Quasi Planar Composite Microstrip Antenna .
• Flat-Top Radiation: A Classical Antenna: Theory Approach.

• Session IV
• Report:

Dr. Subal Kar delivered the lecture on the topic “Matamaterials an emerging field of research in microwave and photonics”. The following topics were elaborated in details by him:

• Metamaterial
• Right Handed vs Left Handed materials
• Plasmonic Metamaterials
• Transmission line Metamaterials
• Plasma Frequency of Wire Media
• Super-lens and Sub-wavelength Imaging
• Metamaterial Application for Absorbers
• Metamaterial in Photonic Developments
• Transparent Metamaterial

DAY 4 (11/06/2019)

• Session I 
• Report:   

Dr. Vishal Kesari delivered a lecture on  “Fast – wave electromagnetic methods for analysing disc- loaded circular waveguides for their prospective application in gyro- travelling -wave tubes”.  Dr. Vishal Kesari received M. Sc. (Physics) degree from Purvanchal University, India, and Ph. D. (Electronics Engineering) degree from Indian Institute of Technology, Banaras Hindu University (IIT-BHU), India, in 2001 and in 2006, respectively. He is Scientist at Microwave Tube Research and Development Centre, DRDO, Bangalore, India. The following topics have been elaborated in details during the session.

• Historical Development A Typical Gyro Travelling Wave Tube
• Broadbanding Techniques for a Gyro-TWT
• Need of Electromagnetic  Analytical Techniques
• Field Matching Technique

• Session II 
• Report: 

Next session was  also taken by Dr. Vishal Kesari. He shared experiences of HFSS simulation in the characterization of interaction structures and couplers.

• Session III 
• Report: 

The topic of “Recent advances in metamaterial assistance in microwave tubes sharing CST Studio Suite simulation experience in the design” was discussed during the third session by the speaker  Mr. Raktim Guha from CEERI Pilani. Major topics covered by him were:

• Physics of metamaterial
• Application of  metamaterial in different fields

• Session IV 
• Report: 

Purushothaman Narasimhan, from CSIR-CEERI, Pilani discussed about metamaterials and metamaterial-based vacuum microwave devices- A Design Perspective in the first session. He has covered following topics:

• EM metamaterials (MTMs) – general design studies
• Case studies – SRRs and fishnet structures
• Thin wire MTM based backward interaction structure
• Use of optimization methods in designing metamaterial-based devices
• Split Ring Resonator.
• Unit Cell to bulk medium model.

DAY 5 (12/06/2019)

• Session I
• Report: 

The topic of “Thermal Management Of Microwave Tubes Sharing The Anays Simulation Experience” was discussed during the second session by the speaker Dr. Vishant Gahlaut, Assistant Professor, Banasthali Vidyapith. The following topics were elaborated in details during the session:

• Travelling Wave Tube (TWT)
• Major Application Areas Of   TWTs
• Thermal Management for TWTs
• Thermal-Structural Analysis of Sub-Assemblies of TWTs
• Thermal Management for Gyrotron
• Thermal-Structural Analysis of Components of Gyrotron

• Session II
• Report: 

The topic of “EM analysis of RG structures for their potential application in gyro-devices -Part-1” was discussed during the second session by the speaker Dr. R. K. Singh (Associate Dean, PG Studies & Research) from Dr. APJ AKTU, Lucknow. The following topics were elaborated in details during the session:

• Fundamental of Gyro-Devices and their applications.
• Different Gyro-devices, their requirements, and capabilities
• Travelling Wave Tube Amplifiers (TWT)
• Various RF structures, capabilities and their limitations.

• Session III
• Report: 
• During this session objective type question based Test/Examination has been conducted.

• Session IV
• Report: The topic of ” EM analysis of RG structures for their potential application in gyro-devices- Part-2 ” was discussed during the second session by the speaker Dr. R. K. Singh (Associate Dean, PG Studies & Research) from Dr. APJ AKTU, Lucknow. The following topics were elaborated in details during the session:
• Potential requirement of Gyro- devices.
• EM analysis of Tapered RF structure.
• EM analysis of Vane loaded RF structure.
• EM analysis of Disc loaded RF structure.

Valedictory/Distribution of Certificates/ Vote of Thanks

• Presentation by Participants and Valedictory
• Learning from the FDP was shared at length by the participants
• Feedback and certificate distribution
• Vote of Thanks has been given by Convener, Dr. R. K. Singh (Associate Dean, PG Studies & Research, Dr. APJ AKTU, Lucknow).
•