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http://dx.doi.org/10.5515/KJKIEES.2014.25.2.183

Analysis on the Propagated Uncertainty of Output Power of Class-F Power Amplifiers from DC Biasing and Its Optimization  

Park, Youngcheol (Department of Electronics Engineering, Hankuk University of Foreign Studies)
Yoon, Hoijin (Department of Computer Science and Engineering, Hyupsung University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.2, 2014 , pp. 183-188 More about this Journal
Abstract
In this paper, the propagation effect of power supply uncertainty on the output of class-F power amplifier has been estimated. Also, a 1.9 GHz, 10 watt class-F power amplifier was measured to verify the estimation and to find the optimal biasing point. By approximating the propagation theory of uncertainties, the propagation effect of bias uncertainty was mathmatically calculated. As a result, the DC biases have propagated uncertainties of 15~70 mW. However, at the optimized bias point, the uncertainty in the output power could be dropped less than 15 mW while the output power has dropped by 0.37 dB.
Keywords
Uncertainty; Power Amplifier; Propagation of Uncertainty;
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