1. Enhancement of RF-DC Converters Efficiency by Input Impedance Optimization
- Author
-
Helena Ribeiro, Diogo Matos, Nuno B. Carvalho, and Apostolos Georgiadis
- Subjects
Diode ,high impedance ,load-pull ,rectenna ,rectifier ,RF-DC converter ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
The Internet of Things has transformed modern technology relying on sensors powered by batteries. However, the environmental impact of batteries is a significant concern. This paper explores wireless power transfer as a viable solution to this problem. This study focuses on improving the antenna impedance to maximize the performance of the diode on the WPT receiver. The study was made with a numerical and theoretical analysis, simulations, and experimental validations. Moreover, it was demonstrated that the optimum input impedance is high impedance, approaching an open circuit. The paper concludes that designing RF-DC converters with high source impedance leads to an improvement on the rectifying efficiency.
- Published
- 2024
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