A Novel Design of an RF-DC Converter for a Low–Input Power Receiver
| Autor: | NgocDuc Au, Chulhun Seo |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Forward converter
020301 aerospace & aeronautics Rectifier Computer science business.industry Buck converter Flyback converter Ćuk converter Electrical engineering 020206 networking & telecommunications Microwave Wireless Power Transfer 02 engineering and technology Schottky Diodes RF probe Power (physics) RF-DC Efficiency 0203 mechanical engineering Boost converter RF-DC Converter 0202 electrical engineering electronic engineering information engineering Electronic engineering lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 |
| Zdroj: | Journal of the Korean Institute of Electromagnetic Engineering and Science, Vol 17, Iss 4, Pp 191-196 (2017) |
| ISSN: | 2234-8395 2234-8409 |
| Popis: | Microwave wireless power transmission (MWPT) is a promising technique for low and medium power applications such as wireless charging for sensor network or for biomedical chips in case with long ranges or in dispersive media such. A key factor of the MWPT technique is its efficiency, which includes the wireless power transmission efficiency and the radio frequency (RF) to direct current (DC) voltage efficiency of RF–DC converter (which transforms RF energy to DC supply voltage). The main problem in designing an RF–DC converter is the nonlinear characteristic of Schottky diodes; this characteristic causes low efficiency, higher harmonics frequency and a change in the input impedance value when the RF input power changes. In this paper, rather than using harmonic termination techniques of class E or class F power amplifiers, which are usually used to improve the efficiency of RF-DC converters, we propose a new method called “optimal input impedance” to enhance the performance of our design. The results of simulations and measurements are presented in this paper along with a discussion of our design concerning its practical applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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