Analysis of Scalable Rectenna Configurations for Harvesting High Frequency Electromagnetic Ambient Radiation
نویسندگان
چکیده
Low power microwave energy harvesting rectennas have been simulated from 0.1 to 100 GHz. Comparison of previously published configurations, and selection between two widely used Schottky diodes and one promising commercially available Schottky diode, has been performed to evaluate efficiency across the range of frequencies. Analysis from our results give, for the first time, a clear explanation as to why a series rectification is more efficient than a shunt configuration for frequency scalable rectennas, finally clarifying previous inconclusive results from the literature. Conversion efficiencies around 7% have been accomplished by a single detector series configuration at 60 GHz and an input power of 0 dBm. Alternate simulations with other configurations, such as a voltage doubler, have been analyzed, demonstrating that they can provide a higher voltage than a series configuration.
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