Strategic Electronic Materials For High End Microwave Circuit Applications

The personal communication services and other wireless technology industries, such as direct broadcasting, global positioning, mobile communication systems etc. have witnessed an explosive and unprecedented growth in applications.  In order to meet these requirements, novel materials with high dielectric constant and low loss tangent are required. Understanding the need for indigenous technology, C-MET has developed and patented a proprietary process methodology comprising of Sigma Mixing, Extrusion, Calendering followed by Hot pressing  (SMECH  process) to fabricate dimensionally stable, planar and isotropic PTFE/ceramic composite laminates. Wide variety of filled PTFE substrates have been developed with dielectric constant ranging from 2.2 to 14.8  together with ultra-low loss tangent (0.0018 at X-band), which can be commercially exploited for communication applications.  Two US patents and one Indian Patent  were sanctioned to protect the intellectual property rights of these innovations. In order to facilitate commercial production, microwave substrate technology developed by C-MET has already been transferred to M/s. Speedlam Electromaterials Private Limited, Hyderabad.

About the Speaker:

Dr. R. Ratheesh completed Ph.D. in Physics from Kerala University in the year 1995.   He worked as Scientist at Centre for Materials for Electronics Technology (C-MET), Thrissur from 1997 to 2016 and headed the microwave materials research activity. Currently, he is the Director of C-MET, Hyderabad. He is the recipient of many postdoctoral fellowships abroad which include Alexander von Humboldt fellowship at University of Osnabrueck, Germany, BOYCAST fellowship at State University of New Jersey, USA, Lady Davis fellowship at Solid State Institute, Technion, Israel, DIST bilateral fellowship at Department of Physics, University of Western Australia etc. His area of research interests are microwave ceramics, composites, ULTCC materials, aerogel materials, Structure-property correlation, e-waste recycling  etc. Dr. Ratheesh has published more than 90 research papers in International Peer review Journals, 6 patents, two book chapters and delivered more than 100 invited lectures.  Dr. Ratheesh bagged Young Scientist award from Government of  Kerala in the year 2000, PSN National Technology Award in 2011 and ELCINA-EFY Award for excellence in outstanding R&D in 2016-17.