Multi-Service Highly Sensitive Rectifier for Enhanced RF Energy Scavenging

• DOI: 10.1038/srep09655
• Publication Date: 2015-05-07T14:12:42Z
• Authors: Negin Shariati; Wayne S. T. Rowe; James R. Scott; Kamran Ghorbani
• Keywords: Rectifier (neural networks); Power density

Due to the growing implications of energy costs and carbon footprints, need adopt inexpensive, green harvesting strategies are paramount importance for long-term conservation environment global economy. To address this, feasibility low power density ambient RF simultaneously from multiple sources is examined. A high efficiency multi-resonant rectifier proposed, which operates at two frequency bands (478-496 852-869 MHz) exhibits favorable impedance matching over a broad input range (-40 -10 dBm). Simulation experimental results reflection coefficient rectified output in excellent agreement, demonstrating usefulness this innovative low-power rectification technique. Measurement indicate an effective 54.3%, DC voltage 772.8 mV achieved multi-tone dBm. Furthermore, measured services concurrently 3.14 7.24 fold increase single 490 860 MHz respectively. Therefore, proposed multi-service highly sensitive promising technique providing sustainable source applications urban environments.