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Abstract
Pacemakers have existed for years for patients with heart failure to re-establish cardiac electrical pulses. However, the main complication related to a traditional pacemaker is its limited battery life. To circumvent such problems, wireless battery charging technology is one of the emergent applications for cardiac pacing. In this paper, an implantable rectenna, consisting of a circularly polarized (CP) monopole antenna, matching circuit and a rectifier, is proposed for pacemaker battery charging. To reduce the impedance mismatch loss, the matching network is incorporated between the antenna and the rectifier. A pair of T-shaped slots are introduced in the ground plane of the antenna to achieve the desired CP operation. The resonant frequency of the rectenna is 2.45 GHz with an impedance bandwidth of 28.45% and 5.73% 3 dB AR bandwidth. At −10 dBm input power, the rectenna output is 0.3 V with a rectenna efficiency of 41%.
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Notes on contributors
Pujayita Saha
Pujayita Saha received her M.Tech degree in Radio physics and Electronics from Calcutta University, India, in 2014. She is currently a Research Scholar in India Institute of Engineering Science and Technology, Shibpur, India. Her present research area includes wearable and implantable antenna design for biomedical applications. She has published her work in several esteemed journals and international conferences.
Debasis Mitra
Dr. Debasis Mitra is currently working as an Assistant Professor in the Department of Electronics & Telecommunication Engineering, IIEST, Shibpur, India. He has authored and co-authored more than 50 research articles. His current research interests include metamaterials, antennas for biomedical application, wireless power transfer, and FSS for radar application. He is a recipient of the Visvesvaraya Young Faculty Research Fellowship award of Media Lab Asia, under MeitY, Govt. of India in 2016. He also serves as a reviewer for different journals like, IEEE Antennas and Wireless Propagation Letters, IEEE Transactions on Antennas and Propagation, IEEE Transactions on Microwave Theory and Techniques etc. Presently Dr. Mitra is Senior Regional Editor of Advanced Electromagnetics journal.
Susanta Kumar Parui
Dr. Susanta K. Parui obtained the Master of Engineering and Ph.D. degree in microwave engineering from Bengal Engineering and Science University, Shibpur. He did his Post Doctorial work in the School of ECIT, Queens University in Belfast, Northern Ireland. He is presently associated with the Department of Electronics and Telecommunication Engineering, at IIEST, Shibpur, where he is currently a Professor. He has specialization in the area of RF and Microwave Engineering. He has authored over 50 papers in refereed journals and 100 papers in conference proceedings. His current research interests include Planar circuits and components, Printed antenna and arrays, Wearable Antenna, Dielectric Resonator Antennas, Substrate Integrated Waveguide, Defected Ground Structure, Frequency Selective Surface, and meta-materials. He executed five Research projects from Govt. funding agencies like AICTE, CSIR and DST-SERC and supervised 8 PhD Thesis. Dr. Parui received the “India/China Research Fellowship” from the Royal Academy of Engineering, U.K., in the year 2009. He is a Senior member of IEEE and presently member of Executive committee of the IEEE Antennas and Propagation/Microwave Theory and Techniques Chapter, Kolkata Section.