Abstract
In this paper, a dual-channel RF-DC microwave rectifier circuit is designed with a 2:1 power distribution ratio in a Wilkinson power splitter. The rectifier circuit works at 2.45 Ghz. After impedance matching and tuning, the structure is able to broaden the dynamic power range of the rectifier circuit while maintaining maximum rectifier efficiency. Compared with the HSMS2820 rectifier branch, this design enhances the power dynamic ranges of 60% efficiency and 50% efficiency by 4 dBm and 3 dBm, respectively. Compared with the HSMS2860 rectifier branch, for the efficiency of 60% and efficiency of 50%, the power dynamic range is expanded by 5 dBm and 2 dBm, respectively. This shows that the technology is helpful for improving the stability of energy conversion at the receiver end of microwave wireless energy transmission systems. Finally, the rationality of this conclusion is verified by establishing a mathematical model.
Highlights
To better clarify the influence of the dual radio frequency (RF)-direct current (DC) microwave rectifier circuit based on an unequal Wilkinson power divider on the dynamic scope of circuit power, the 2:1 dual rectifier circuit was compared with the dynamic power range of the HSMS2820 circuit and the HSMS2860 circuit
A dual RF-DC microwave rectifier circuit based on an unequal Wilkinson power divider was designed in this paper
This rectifier circuit was designed with two input power components in the ratio of 2:1, passing through HSMS2820 and HSMS2860 Schottky diodes with different power response characteristics
Summary
Wires have always acted as carriers for power transmission since the invention of electric energy. MOSFET, some input power is consumed, leading to the efficiency of the rectifier circuit being affected For this reason, one scholar proposed a design method for wide-dynamic rectifier circuits based on passive microwave networks. The changes in the rectifier circuit’s impedance with input power are adjusted to the real impedance through the differential circuit, and the change scope is declined This method was able to successfully achieve wide-dynamic rectification, within certain limitations. Based on two lines of a microwave rectifier circuit, a research team at the South China University of Technology recycled mismatching reflective energy through a directional coupler and enhanced the rectifier circuit’s dynamic scope for power response [7]. Because of the characteristics of the dual rectifier circuit, when the input power changes dynamically, the overall RF-DC conversion efficiency remains high [9,10,11]
Sign-in/Register to view highlights & summary 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.
