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http://dx.doi.org/10.5909/JBE.2013.18.6.884

Characteristics of Power Amplifier for Energy Efficient Broadcasting Services  

Han, Jae-Shin (Department of Electrical and Electronic Engineering, Yonsei University)
Jeon, Sungho (Technical Research Institute, Korean Broadcasting System)
Choi, Jeong-Min (Department of Electrical and Electronic Engineering, Yonsei University)
Seo, Jong-Soo (Department of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Journal of Broadcast Engineering / v.18, no.6, 2013 , pp. 884-894 More about this Journal
Abstract
In this paper, we investigate the characteristics of power amplifiers and simplified memoryless non-linear power amplifier models for energy efficient communication system. First, we present the transfer function of GaAs FET (Gallium Arsenide Field Effect Transistor) that is widely used for high power amplifier. From those investigations, we introduce the instantaneous efficiencies and methods of amplification by assuming that the saturated current is constant, while perfect linearity is exploited under knee voltage. Then, we discuss four non-linear power amplifier models in a baseband signal processing. Finally, we explain the specified total power consumption model in a base station to achieve the resonable analysis for energy efficient communication.
Keywords
Energy Efficient; Power Amplifier; Green;
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