Adjustable Load With Tracking Loop to Improve RF Rectifier Efficiency Under Variable RF Input Power Conditions

Dehghani, Soroush; Abbasian, Sadegh; Johnson, Thomas

doi:10.1109/tmtt.2015.2512583

Cited by 7 publications

(1 citation statement)

References 27 publications

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“…Rectifiers with discrete GaN or GaAS FETs can be designed to obtain a relatively high RF‐to‐DC conversion efficiency and a high output power. However, the circuits could be complex due to the need for additional DC bias circuits or self‐biasing circuits that use phase shifters …”

Section: Introductionmentioning

confidence: 99%

High‐efficiency rectifier (5.2 GHz) using a Class‐FDickson charge pump

Bae

Koo

Lee

et al. 2017

Micro & Optical Tech Letters

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This article presents a 5.2 GHz high‐efficiency rectifier, based on a Class‐F Dickson charge pump, for use in RF energy harvesting systems. A single‐stage Dickson charge pump with two Schottky diodes was adopted to produce a high‐output DC voltage. A harmonic source‐pull simulation was conducted to optimize the third harmonic impedance for the Class‐F harmonic termination. The proposed scheme is verified by designing and implementing a hybrid Class‐F Dickson charge pump for the 5.2 GHz band using two Schottky diodes in a package. The proposed rectifier has a very small size of 19 18 mm2, and the implemented rectifier exhibited a high RF‐to‐DC conversion efficiency of 64.1% and an output DC voltage of 5.1 V at an input power of 24 dBm for the 5.2 GHz single‐tone signal.

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Section: Introductionmentioning

confidence: 99%