Title: LTE 2100 MHz band half-wave two element rectifier array for wireless electromagnetic energy harvesting

Authors: Pradeep Chandrakant Dhanawade; Shivajirao M. Sangale

Addresses: Department of Electronics and Communication Engineering, DKTE'S Textile Engineering Institute, Maharashtra, India ' Department of Electronics and Communication Engineering, Karamveer Bhaurao Patil College of Engineering, Maharashtra, India

Abstract: In this manuscript, a two-element half-wave rectenna array for wireless energy harvesting from LTE 2100 MHz band is presented. The 2100 MHz band is chosen based on the spectrum survey in the locality. An outdoor peak power of -15.8 dBm is sensed using a 1.5 dBi gain wideband antenna and spectrum analyser. A half-wave rectifier circuit using two different Schottky diodes and a capacitor filter is developed and connected in mirror image form. The proposed structure combines the direct current power of individual elements using two series capacitors improving the rectenna efficiency. The reported full-wave rectifier array has 19.95% and 63.01% radio-frequency to direct current efficiency for conventional and high-performance Schottky diodes respectively. A detailed analysis of major design parameters has been performed and presented in the manuscript which will help researchers to choose a suitable operating band and design components for rectenna design. The presented half-wave-rectifier rectenna has a comparable conversion efficiency with the full-wave-rectifier rectennas resulting in improved throughput wireless energy harvesting systems.

Keywords: rectifier; rectenna; Schottky diode; wireless energy harvesting; rectenna array.

DOI: 10.1504/IJWMC.2024.138779

International Journal of Wireless and Mobile Computing, 2024 Vol.26 No.4, pp.319 - 326

Received: 08 Feb 2022
Received in revised form: 02 Jun 2022
Accepted: 06 Aug 2022
Published online: 31 May 2024 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article