Evolutionary algorithm for minimizing the temperature influence of low power RF Energy Harvesting circuits

The aim of this work is to analyze and optimize the design of low-power Radio Frequency (RF) Energy Harvesting rectifiers by using an Evolutionary Algorithm. Although, generally neglected in the literature, the RF rectifier operation strongly depends on the operation temperature. When it varies, the...

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Bibliographic Details
Published in:Microelectronics 2024-05, Vol.147, p.106166, Article 106166
Main Authors: Trevisoli, Renan, Lima, Lícia S.C., da Paz, Humberto P., Doria, Rodrigo T., Casella, Ivan R.S., Capovilla, Carlos E.
Format: Article
Language:English
Subjects:
Energy Harvesting
Evolutionary algorithm
Power efficiency
Radio Frequency
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Summary:The aim of this work is to analyze and optimize the design of low-power Radio Frequency (RF) Energy Harvesting rectifiers by using an Evolutionary Algorithm. Although, generally neglected in the literature, the RF rectifier operation strongly depends on the operation temperature. When it varies, the input impedance can change significantly, affecting the circuit matching and its power conversion efficiency. In this work, an evolutionary algorithm is used to identify which parameters of an RF diode are responsible for the performance degradation as a function of temperature and to optimize the rectifier circuit in order to reduce the temperature influence. This work demonstrates that the saturation current, the zero-bias junction capacitance, the load and the series resistance have an important impact in designing an optimized circuit. Results indicate that the applied algorithm can be used aiming the project of a circuit more robust to temperature variations. The obtained results have also been compared to experimental ones, corroborating the analysis.
ISSN:1879-2391
1879-2391
DOI:10.1016/j.mejo.2024.106166