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Content Provider | IET Digital Library |
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Author | Abdallah, Mahmoud Costantine, Joseph Ramadan, Ali H. Tawk, Youssef |
Abstract | Power splitting of the input radio frequency (RF) signal is used to improve the efficient power range of a RF rectifier. Direct current (dc) power at the output of every rectifying branch is then combined over a resistive load and thus resulting in a single dc output. The enhancement in efficient power range, over which the power conversion efficiency (PCE) remains ≥ 50%, is determined to be 2.8 dB. The article starts by a theoretical analysis that addresses the negative effects of the diode's breakdown voltage, formulates an equation that predicts the maximum output dc voltage at saturation, and introduces a method that can improve the PCE of a typical shunt-type diode rectifier at low power levels. As a result, a rectifying system is designed and tested as a proof of concept. The proposed circuit, with the enhanced power range, is designed to operate within the power span from −10 dBm up until 10 dBm. Such system is suitable for operation in RF wireless energy transfer and energy harvesting applications. |
Starting Page | 1280 |
Ending Page | 1286 |
Page Count | 7 |
ISSN | 17518725 |
Volume Number | 13 |
e-ISSN | 17518733 |
Issue Number | Issue 9, Jul (2019) |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-map/13/9 |
Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-map.2018.5222 |
Journal | IET Microwaves, Antennas & Propagation |
Publisher Date | 2019-04-05 |
Access Restriction | Open |
Rights Holder | © The Institution of Engineering and Technology |
Subject Keyword | Diode Breakdown Voltage Direct Current Power Efficient Power Range Energy Harvesting Enhanced Radio Frequency Rectifier Inductive Power Transmission Input Radio Frequency Signal Low Power Levels Maximum Output Dc Voltage Prediction Noise Figure 2.8 DB PCE Power Combiners Power Conversion Efficiency Power Divider Power Electronics Power Splitting-combining Topology Power Supply Rectifier Rectifying Branch Rectifying System Resistive Load RF Rectifier RF Wireless Energy Transfer Single Dc Output Supervisory Circuit Typical Shunt-type Diode Rectifier Waveguide And Microwave Transmission Line Component |
Content Type | Text |
Resource Type | Article |
Subject | Electrical and Electronic Engineering |
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