Abstract

Wireless medical devices are used for monitoring a patient’s health. These devices transmit patient’s health data to external programming devices through communication links. Battery life is a significant issue with these wireless medical devices. This project proposes an energy harvesting system which scavenges energy from Radio Frequency (RF) electromagnetic spectrum and it is operated in GSM 900 band. In such systems, RF input energy is rectified using RF DC rectifier topologies. The RF- DC conversion is carried out using schottky diode. Impedance matching circuit is deployed between antenna and rectifier for maximum power transfer. The rectifying efficiency is found to be 72% for low input power. The proposed RF energy harvesting system is designed and simulated using Advanced Design System 2009 software.

References

• Changhong Wang, Qiang Wang,” A Distributed Wireless Body Area Network for Medical Supervision”, in IEEE Wireless Network vol. 17, pp. 1–18, 2011.
• Jamil, Y.Khan and Mehmet R. Yuce ,”Wireless Body Area Network for Medical Applications ” in IEEE Trans. Information Tech. In Biomedicine Dec 2004,Vol.8.no:4,pp415-427, ISSN : 1089-771.
• Jun Liu, Fei Xie, Yaqi Zhou, Qian Zou, “A Wearable Health Monitoring System with Multi-parameters” in IEEE 2013 6th International Conference on Biomedical Engineering and Informatics (BMEI 2013).
• Jerald Yoo, “A 5.2microWatt Self-Configured Wearable Body Sensor Network Controller and a 12 µW Wirelessly Powered Sensor for a Continuous Health Monitoring System” in IEEE Journal Of Solid-State Circuits, Vol. 45, No. 1, January 2010.
• Yanqing Zhang, Fan Zhang, “A Batteryless 19 µW MICS/ISM-Band Energy Harvesting Body Sensor Node SoC for ExG Applications” in IEEE Journal Of Solid-State Circuits, Vol. 48, No. 1, January 2013.
• Mai Ali, Lutfi Albasha, Nasser Qaddoumi,” RF Energy Harvesting for Autonomous Wireless Sensor Networks” in IEEE Industrial Electronics Society oct 2012.
• Hsiao-Chin Chen, Ming-Yu Yen, Kuo-Jin Chang, and Li-Ming Wang, ” Batteryless Transceiver Prototype for Medical Implant in 0.18- m CMOS Technology” in IEEE Transactions On Microwave Theory And Techniques, Vol. 62, No. 1, January 2014.
• Boules A. Mouris and Islam A. Eshrah ,” Highly Efficient UHF Energy Harvesting Module for RFID Applications” in IEEE Antennas and propagation Society International Symposium on July 2014.
• G.P.Ramesh, A.Rajan ,” RF Energy Harvesting Systems for Low power Application” in International Journal Of Technology And Engineering Science Vol 1(7), pp1085-1091, October 2013.
• MD Kamal Hosain, Abbas Z. Kouzani , “Development of a Compact Rectenna for Wireless Powering of a Head-Mountable Deep Brain Stimulation Device” in 2014 IEEE Journal of Translational Engineering in Health and Medicine.
• Sherlyn dela Cruz, Anastacia Alvarez, Maria Theresa de Leon, Christian Raymund Roque, “Design and Implementation of Passive RF-DC Converters for RF Power Harvesting Systems” in 2010 IEEE.
• Report On “Cell Tower Radiation” Submitted to Secretary, DOT, Delhi by Prof. Girish Kumar Electrical Engineering Department IIT Bombay, Powai, Mumai on December 2010.
• Reports on “Cell Tower Radiation Hazards And Solutions “by Prof. Girish Kumar, IIT Bombay.
• Hubregt J. Visser, Adrianus C.F. Reniers, Jeroen A.C. Theeuwes, “Ambient RF Energy Scavenging: GSM and WLAN Power Density Measurements” in Proceedings of the 38th European Microwave Conference 2008.
• Sabri Beldi ,” A Miniaturezed Tag Antenna RFID for Textil Application” in International Journal Of Scientific And Engineering Research September 2015.
• Book “The design of CMOS Radio Frequency Integrated Circuits” by Thomas M Lee.
• Zahriladha Zakaria, Nur Aishah Zainuddin,” Current developments of RF Energy Harvesting System for Wireless Sensor Networks” in International Journal Of Scientific And Engineering Research June 2013.
• Prusayon Nintanavongsa, Ufuk Muncuk, David Richard Lewis, and Kaushik Roy Chowdhury, ”Design optimization and implementation for RF Energy harvesting circuit” in IEEE journal on Emerging and Selected Topics in Circuits and System, vol.2, No 1, March 2012.