Improving Power Transfer in Rectenna Via Impedance Matching at GHz Frequencies

Authors

  • D. Etor Department of Electrical and Electronics, Faculty of Engineering, University of Jos, Plataeu State, NIGERIA
  • N. B. Gafai Department of Electrical and Computer, Faculty of Engineering, Baze University, Abuja, NIGERIA
  • I. A. Akintunde Department of Electrical and Electronics, Faculty of Engineering, University of Jos, Plataeu State, NIGERIA
  • O. O. Awodiji Department of Electrical and Electronics, Faculty of Engineering, University of Jos, Plataeu State, NIGERIA
  • L. E. Dodd Smart Materials and Surfaces Laboratory, Faculty of Engineering and Environment, Northumbria University, Newcastle Upon-Tyne, UNITED KINGDOM

Keywords:

impedance-matching, coplanar strip lines, open-circuit stub, molecular rectifier, rectenna

Abstract

A simple and elegant impedance-matching method for rectenna operating in a narrow frequency range is presented. The method used two coplanar strip lines emerging from the antenna feed-point, to correct for the reactive component of the antenna impedance on one side, and to connect the rectifier and transform its impedance on the other side. The experimental results were supported by numerical simulations, which suggest that the same impedance matching technique can be used for mm-waves and terahertz (THz) radiation applications. Microwave characterization of the fabricated devices (impedance-matched and non-matched) showed that the responsivity of the impedance-matched rectenna is approaching an order of magnitude higher at 20 GHz than that of a control device without a matching network.

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Published

2021-12-31

Issue

Section

Computer, Telecommunications, Software, Electrical & Electronics Engineering

How to Cite

Improving Power Transfer in Rectenna Via Impedance Matching at GHz Frequencies. (2021). Nigerian Journal of Technology, 40(6), 1072-1078. https://www.nijotech.com/index.php/nijotech/article/view/2684