Abstract

Rectifiers are used for converting Alternating Current (AC) signals received by the antenna into Direct Current (DC) output in Radio Frequency Energy Harvesting (RFEH) System. Different topologies like a half wave, full wave & bridge wave are used to design rectifies for RFEH system. The purpose of this paper is, to design & simulate two single frequency (2.35 GHz and 2.42 GHz) and two dual-band (1.84 GHz & 2.42 GHz and 883 MHz & 2.35 GHz) rectifiers. Initially, rectifier with a matching circuit is designed for a single frequency, after that, a dual-band rectifier with a matching network for all targeted frequencies is designed using transmission lines. A Radio Frequency (RF) to DC conversion efficiency of 45.26% and output voltage of 1.16 V is obtained at 2.35 GHz, whereas 42.96% efficiency & output of 1.13 V is obtained at 2.42 GHz single frequency rectifier. For dual-band (1.84 GHz & 2.42 GHz) rectifier the overall efficiency is 79.46% at -4 dBm input power and it increased up to 86.32% for dual-band (883 MHz & 2.35 GHz) rectifier. Finally, a comparison of simulated results of the proposed rectifier with related work is presented.

Keyword

RF energy harvesting, Rectenna, Dual band rectifier, RF to DC conversion efficiency.

Cite this article

Trikolikar A, Lahudkar S

Refference

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