Efficient Dual Band RF Energy Harvesting Front End for Ultra Low Power Sensitive Passive Wearable Devices

K, Pramod and V, Nagaveni and Singh, Shiv Govind (2014) Efficient Dual Band RF Energy Harvesting Front End for Ultra Low Power Sensitive Passive Wearable Devices. In: Fifth International Symposium on Electronic System Design (ISED), 15-17 Dec, 2014, Surathkal, India.

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Abstract

This paper demonstrates a double-band RF energy harvesting system, to be used with a passive wearable device operating at a distance of 6-20 m from a wireless power source. The double-band RF energy harvesting circuit that is presented in this paper, can harvest an input power as low as -14 dBm from both 925 MHz and 2.4 GHz, ISM frequencies. The harvesting circuit is implemented in a standard 0.18 μm CMOS technology and gives a regulated output voltage of 1.1 V. Post-layout simulations show an overall system efficiency of 41.87% and 46.95% at 953 MHz and 2.4 GHz respectively, while driving a load resistance of 60 kΩ.

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IITH Creators:

IITH Creators	ORCiD
Singh, Shiv Govind	http://orcid.org/0000-0001-7319-879X

Item Type:

Conference or Workshop Item (Paper)

Uncontrolled Keywords:

Power Conversion Efficiency (PCE) , Ultra High Frequency (UHF) , Radio Frequency Identification (RFID) , Band Gap Reference , Low Drop Out Regulator (LDO) , Power On Reset (POR) , Effective Isotropic Radiated Power (EIRP)

Subjects:

Electrical Engineering

Divisions:

Department of Electrical Engineering

Depositing User:

Library Staff

Date Deposited:

12 Sep 2019 05:24

Last Modified:

12 Sep 2019 05:24

URI:

http://raiithold.iith.ac.in/id/eprint/6202