After demonstrating, in previous works, the proof of concept of adaptive rectifiers with\nactive load modulation to operate simultaneously for short/long range RF Wireless Power Transfer\n(WPT) while maintaining a high Power Conversion Efficiency (PCE), the authors introduced in this\npaper a power link budget of the proposed adaptive rectifier with a compromise between distance\nand efficiency. Then, to further exhibit its capabilities and enhance its performance, this paper first\nintroduced a discussion about the parameters preventing the rectifier from operating over a wide\nrange of input powers was performed. Furthermore, active load modulation was implemented\nand its co-simulation results presented. Finally, an adaptive rectifier was fabricated and its results\nsuccessfully compared to measured data. It exhibits 40% of PCE over a wide dynamic input range of\nincident RF power levels from âË?â??6 to 25 dBm at the 900 MHz in the Industrial Scientific Medical band\n(ISM band), with a maximum PCE of 66% for an input power of 15 dBm. The proposed devices are\ntherefore suitable for WPT applications to harvest energy from a controlled source.
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