|Title||Rectifiers Based on Quadrature Hybrid Coupler with Improved Performance for Energy Harvesting|
|Authors||Unich, G., Olukoya, O. and Budimir, D.|
This paper presents a method for enhancing RF-dc conversion efficiency of the rectifier based on inkjet-printed quadrature based hybrid coupler (QHC) for wireless energy transfer systems. The input matching network and output load of the rectifier are optimized for optimal RF-dc conversion efficiency. Improvement of about 16 dB input power range is achieved for RF-dc conversion efficiency of 60%. The simulated efficiencies of the rectifiers with and without coupler for 3 MHz LTE signals and output power spectra densities at 1.5 GHz are illustrated.
|Keywords||Quadrature hybrid Coupler (QHC), RF-dc conversion efficiency, Nonlinear distortion.|
|Conference||IEEE Wireless Power Transfer Conference (WPTC2018) |
|Accepted author manuscript|
|Published||14 Feb 2019|
|Digital Object Identifier (DOI)||https://doi.org/10.1109/WPT.2018.8639267|