Abstract
This paper proposes a novel self-powered polarization-reconfigurable rectenna for wireless power transfer (WPT) systems. A three-state-reconfigurable network is designed, which is realized by two 3 dB bridges sharing a branch integrated with PIN diodes. The patch antenna can be excited to receive distinct polarized waves at 5.8 GHz by controlling PIN diodes’ ON or OFF state. In addition, a high-efficiency rectifier network includes two rectifier circuits integrating with a circulator for optimal input power. The function of the rectifier circuit 1 is to convert the radio frequency (RF) power in the power transfer link into direct current (DC) power. and rectifier circuit 2, as a part of the polarization control link, aims to use the energy reflected by the rectifier circuit 1 to provide a DC bias for the PIN diodes. Without an external DC power source. Finally, a WPT system is established based on the proposed self-powered polarized reconfigurable rectenna. The measured results show that the proposed rectenna has a maximum conversion efficiency of 66% at 5.8 GHz and a conversion efficiency higher than 50% in the incident power range from 21 dBm to 30 dBm. It can flexibly adjust the polarization state without an extra DC power source, realizes efficient wireless power transmission, and can be widely used in WPT systems for different applications.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
