Wireless power transmission (WPT) is an emerging technology that is gaining increased visibility in recent years. Efficient WPT circuits, systems and strategies can address a large group of applications spanning from batteryless systems, batteryfree sensors, passive RF identification, near-field communications, and many others. WPT is a fundamental enabling technology of the Internet of Things concept, as well as machine-to-machine com-
This work describes the impact of the output termination impedance on large-signal intermodulation distortion (IMD)-sweet spots appearing in FET-based power amplifiers. Theoretical studies validated by appropriate measurement results lead to a systematic methodology for selecting the optimum load-impedance value at the fundamental to be presented at the device output.
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