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Abstract
An integrated design of conformal 4G and 5G Multiple-Input Multiple-Output (MIMO) antenna system is proposed. The 4G MIMO antenna system consists of electrically small two-element Composite Right/Left Handed (CRLH)-based Coplanar waveguide (CPW)-fed monopole antennas, which cater to the class 7 4G Long-Term evolution (LTE) band. For mmWave 5G MIMO antenna system, two-element high gain microstrip patch antennas are proposed. The conformal CPW-fed CRLH Metamaterial (MTM)-based 4G LTE antenna is electrically small with dimensions 20 × 20 × 0.254 mm3. The proposed antenna system has a forward gain of 2.15 dBi. Also, a conformal microstrip-fed patch antenna with an orthogonal pattern diversity at 28 GHz with a forward gain of 9 dBi is presented. Both the proposed antennas are integrated electrically close by 0.004 λ for minimal physical footprint post-integration in a typical smartphone case. The isolation is less than 35 dB. Real-world deployment studies have been presented.
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Notes on contributors
M. Idrees Magray
M Idrees Magray received his BTech degree in electronics and communication engineering in the year 2018 from the Islamic University of Science and Technology, Awantipora, J&K. He received INAE fellowship for 2 months and during that tenure he worked under the supervision of Prof Shiban K Koul. Currently, he is working on various projects at CARE, IIT Delhi, under the guidance of Prof Shiban K Koul. His research interests include co-designed 4G LTE and mmWave 5G antennas for mobile terminals and mmWave antennas for mobile terminals and base stations. Email: [email protected]
G. S. Karthikeya
G S Karthikeya received his undergraduate degree in electronics and communication engineering in the year 2010 from Visvesvaraya Technological University, Belgaum. He received his master's degree in microwave engineering from the University of Kerala in 2012. He worked as an assistant professor in Visvesvaraya technological university from 2013 to 2016. He has been working toward his PhD degree at CARE, IIT Delhi, since 2017. He has authored or co-authored more than 25 articles in peer-reviewed journals and conference proceedings. He has also filed three Indian patents. His research interests include mmWave antennas for mobile terminals and base stations. Corresponding author. Email: [email protected]
Khalid Muzaffar
Khalid Muzaffar received his BTech in electronics and communication and MTech in communication and IT from NIT, Srinagar, India, in 2004 and 2006, respectively. He worked in Ericsson India Pvt. Ltd. from July 2006 to July 2007 as a field and maintenance engineer. He joined IUST Awantipora as an assistant professor in August 2007. He received PhD from the Centre for Applied Research in Electronics, IIT Delhi, India, in June 2017. His research interests are microwave antenna design, applications of thermal imaging for microwave field imaging. He is presently working as an AICTE coordinator and NBA coordinator in IUST, Awantipora. Email: [email protected]
Shiban K. Koul
Shiban K Koul received his BE degree in electrical engineering from the Regional Engineering College, Srinagar in 1977, and MTech and PhD degrees in microwave engineering from the Indian Institute of Technology, Delhi, India in 1979 and 1983, respectively. He is Dr R P Shenoy Astra Microwave Chair professor at the Centre for Applied Research in Electronics where he is involved in teaching and research activities. His research interests include RF MEMS, high frequency wireless communication, microwave engineering, microwave passive and active circuits, device modelling, millimeter wave IC design and reconfigurable microwave circuits including antennas. He held the position of deputy director (Strategy and Planning) at the Indian Institute of Technology Delhi from 2012 to 2016 and is currently holding the position of deputy director (Strategy and Planning, International affairs and R&D) at the Indian Institute of Technology Jammu. He is also the chairman of M/S Astra Microwave Pvt. Ltd, a major private company involved in the development of RF and microwave systems in India. He is the author/co-author of 361 research papers, 8 state-of-the art books and 3 book chapters. He has successfully completed 34 major sponsored projects, 52 consultancy projects and 54 technology development projects. He holds 10 patents and 6 copyrights.
He is a Fellow of the IEEE, USA, Fellow of the Indian National Academy of Engineering (INAE) India and Fellow of the Institution of Electronics and Telecommunication Engineers (IETE) India. He is the recipient of Gold Medal by the Institution of Electrical and Electronics Engineers Calcutta (1977); S K Mitra Research Award (1986) from the IETE for the best research paper; Indian National Science Academy (INSA) Young Scientist Award (1986); International Union of Radio Science (URSI) Young Scientist Award (1987); the top Invention Award (1991) of the National Research Development Council for his contributions to the indigenous development of ferrite phase shifter technology; VASVIK Award (1994) for the development of Ka- band components and phase shifters; Ram Lal Wadhwa Gold Medal (1995) from the Institution of Electronics and Communication Engineers (IETE); Academic Excellence award (1998) from Indian Government for his pioneering contributions to phase control modules for Rajendra Radar, Shri Om Prakash Bhasin Award (2009) in the field of Electronics and Information Technology, Teaching excellence award (2012) from IIT Delhi, Award for contributions made to the growth of smart material technology (2012) by the ISSS, Bangalore, Vasvik Award (2012) for the contributions made to the area of Information, Communication Technology (ICT), M N Saha Memorial Award (2013) from the IETE for the best application-oriented research paper and IEEE MTT Society Distinguished Educator Award (2014).
He is the Chief Editor of IETE Journal of Research, Associate Editor of the International Journal of Microwave and Wireless Technologies, Cambridge University Press and is on editorial boards of several prestigious journals. He is currently a serving ADCOM member and a Member of IEEE MTT society's Technical committees on Microwave and Millimetre Wave Integrated Circuits (MTT-6) and RF MEMS (MTT-21), Member of India Initiative team of IEEE MTT-S, Membership Services Regional Co-coordinator Region-10, Member Sight Ad hoc Committee MTT-S, and MTT-S Speaker bureau lecturer. He served as a Distinguished Microwave Lecturer of IEEE MTT-S for the period 2012–2014 and Distinguished Microwave Lecturer-Emeritus of IEEE MTT-S in 2015. Email: [email protected]