Abstract
This paper presents the design of a wide dynamic range rectifier array using a novel adaptive power distribution method. In such a rectifier array, the RF input power is distributed among multiple rectifier devices adaptively, according to their impedances as a function of input power level. Such a rectifier array can achieve high rectification efficiency and low reflection coefficient over a wide range of power levels. The method is experimentally verified with a 900 MHz two-device rectifier array, and demonstrated an efficiency higher than 50% over 17 dB dynamic range (10 dB wider than a conventional rectifier design using the same devices) with a peak efficiency of 66%.
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