https://orcid.org/0000-0002-3960-1423
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Abstract
This article proposes a single band circularly polarized (CP) rectenna operate at a 2.45 GHz Wi-Fi band, using a hexagonal shape of a microstrip radiator and a voltage doubler rectifier for smart city applications. A partial ground plane embedded with isosceles triangular slot and notch helps in obtaining the desired resonance characteristics with improved antenna performance and reasonable miniaturization. Two crossed-slots, introduced into the radiating patch, yield CP characteristics. Also, the proposed antenna shows an omnidirectional radiational behavior that helps in harvesting RF energy from all of its surroundings. A voltage doubler configuration using the SMS7630-005 LF diode is chosen for designing a rectifier circuit to achieve a maximum conversion efficiency of 65.1% and an output voltage of 1.65 V at an input power of 0 dBm for the load resistance value of 4.1 kΩ which is very much suitable for powering low power sensing devices.
Acknowledgment
This work was supported by the Ministry of Human Resource Development (MHRD) under Scheme for Promotion of Academic and Research Collaboration (SPARC), Govt. of India (Research Grant No. SPARC/2018-2019/P266/SL/2019).
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No potential conflict of interest was reported by the author(s).
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Notes on contributors
Daasari Surender
Daasari Surender received the Bachelor of Technology degree in Electronics and Communication Engineering from Jawaharlal Nehru Technological University, Telangana in 2008, and Master of Engineering degree in Microwave and Radar Engineering from Osmania University, Telangana in 2011. He worked as an Assistant Professor in Kamala Institute of Technology and Science, Affiliated to JNTU Hyderabad during 2012–2017. Currently, he is working as a full-time Ph.D. research scholar in the National Institute of Technology Silchar, India since 2017. His current research interests include planar antenna, dielectric resonator antennas, and radiofrequency energy harvesting systems.
Md. Ahsan Halimi
Md. Ahsan Halimi received his B.Tech. and M. Tech. degrees in the stream of Electronics and Communication Engineering from Ajmer Institute of Technology, Ajmer, India, and Pondicherry University, Pondicherry, India respectively. Currently, he is working as a full-time Ph.D. Scholar at National Institute of Technology Silchar, India. His current research interests include RF Energy harvesting, Microwave Rectifiers, Reconfigurable Antennas.
Taimoor Khan
Dr. Taimoor Khan is an Assistant Professor in the Department of ECE at NIT Silchar since 2014. Prior to that he worked more than 15 years in several organizations. Also, he has worked as Visiting Researcher at QU Canada and a Visiting Assistant Professor at AIT Bangkok, Thailand. His active research interests include High Frequency Printed Circuits and RF Energy Harvesting. He has successfully guided three Ph.D. Theses and published over 75 research articles in international journals and conference proceedings. He has executed three major and minor research projects and currently running two international collaborative SPARC and VAJRA projects. He is a Fellow of IEI and IETE, Senior Member of IEEE and URSI. He has been awarded a prestigious IETE-Prof SVC Aiya Memorial Award for the Year 2020. Also, he has edited a book titled Elements of Radio Frequency Energy Harvesting and Wireless Power Transfer Systems published by CRC, USA.
Fazal A. Talukdar
Fazal A. Talukdar joined Regional Engineering College, Silchar as Lecturer in April 1991, became an Assistant Professor in 1996 and rose to the level of Professor in May 2006. Prior to joining Regional Engineering College, Silchar was a Lecturer at Silchar Polytechnic from August 1988 to March 1991. He was Head of the Department of Electronics and Communication Engineering from August 2006 to April 2006. From July 2004 to June 2009, he was the Registrar of NIT Silchar. From March 2005 to August 2007, he held the post of Deputy Registrar (Accounts), during 2012–13, he was the Dean (Alumni Relations) and during 2013–15, he was the Dean (Academic Affairs) of the Institution. Besides these, he worked in many other committees of the Institute.
Shiban K. Koul
Shiban K. Koul (Life Fellow, IEEE) served as the Chairman for Astra Microwave Products Limited, Hyderabad, from 2009 to 2019, and also a Dr. R.P. Shenoy Astra Microwave Chair Professor with IIT Delhi from 2014 to 2019. He is currently an Emeritus Professor with CARE, IIT Delhi, and also the Deputy Director of strategy and planning with IIT Jammu. His current research interests include RF MEMS, nonlinear device modeling, microwave and millimeter wave active and passive circuit design, and reconfigurable microwave circuits including antennas., Dr. Koul is a Fellow of the Indian National Academy of Engineering, India, and the Institution of Electronics and Telecommunication Engineers (IETE), India. He served as a Distinguished Microwave Lecturer of IEEE MTT-S from 2012 to 2014. He is the Chief Editor of IETE Journal of Research and an Associate Editor of the International Journal of Microwave and Wireless Technologies, Cambridge University Press.
Yahia M.M. Antar
Yahia M. M. Antar joined the Division of Electrical Engineering, National Research Council of Canada. In 1987, he joined the Department of Electrical and Computer Engineering, Royal Military College of Canada, Canada, where he has been a Professor since 1990. He was appointed as a member of the Canadian Defence Advisory Board of the Canadian Department of National Defence in 2011. He is a fellow of the Engineering Institute of Canada, the Electromagnetic Academy, and the International Union of Radio Science. He served as the Chair for Commission B from 1993 to 1999 and for CNC, URSI from 1999 to 2008, and has a cross-appointment at Queen’s University, Kingston. In 2002, he was awarded a Tier 1 Canada Research Chair in electromagnetic engineering, which has been renewed in 2016. He serves as an Associate Editor for many IEEE and IET journals and as an IEEE-APS Distinguished Lecturer. He was elected by the URSI to the Board as the Vice President in 2008 and 2014 and by the IEEE AP AdCom in 2009. Presently, he is serving as President, IEEE APS (Region 7–10) for the year 2021.