Efficient feeding geometries for rectenna design at 2.45 GHz. Issue 24 (1st November 2017)

• Record Type: Journal Article
• Authors: Ahmed, S.; Zakaria, Z.; Husain, M.N.; Ibrahim, I.M.; Alhegazi, A.
• Is Part Of: Electronics letters. Volume 53:Issue 24(2017)
• Page Start: 1585
• Page End: 1587
• Publication Date: 2017-11-01
• Subjects: rectennas -- antenna feeds -- UHF antennas -- electromagnetic wave polarisation -- harmonics suppression -- microwave power transmission; rectenna design -- efficient feeding geometries -- two layers low cost FR‐4 substrates -- circular polarisation -- harmonic rejection properties -- voltage doubler rectifier -- open stub matching network -- radial stub -- ac signals -- dc voltage -- right triangular slot -- ground plane -- second harmonics suppression -- third harmonics suppression -- microwave power transmission applications -- frequency 2.45 GHz -- efficiency 75.043 percent; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2017.2657
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : Efficient feeding geometries for rectenna design at 2.45 GHz are described. The proposed rectenna consists of two layers low cost FR‐4 substrates in which circular polarisation and harmonic rejection properties are embedded. A voltage doubler rectifier with open stub matching network and the radial stub is designed at the bottom substrate to transform the ac signals to a dc voltage. A right triangular slot is designed in the ground plane to suppress second and third harmonics which improves the rectenna conversion efficiency to 75.043% at an input power of 20 dBm. The proposed rectenna design has the advantages of providing circular polarisation and harmonic rejection with a compact size and low cost which makes it a good candidate for microwave power transmission applications.