Design of a Highly Efficient Broadband Class-E Power Amplifier with a Low Q Series Resonance

This work presents a method used for designing a broadband class-E power amplifier that combines the two techniques of a nonlinear shunt capacitance and a low quality factor of a series resonator. The nonlinear shunt capacitance theory accurately extracts the value of class-E components. In addition...

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Bibliographic Details
Published inJournal of Electromagnetic Engineering and Science Vol. 16; no. 3; pp. 143 - 149
Main Authors Ninh, Dang-Duy, Nam, Ha-Van, Kim, Hyoungjun, Seo, Chulhun
Format Journal Article
LanguageKorean
Published 2016
Subjects
Nonlinear Capacitance
Broadband
Class-E Amplifier
High PAE
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Summary:This work presents a method used for designing a broadband class-E power amplifier that combines the two techniques of a nonlinear shunt capacitance and a low quality factor of a series resonator. The nonlinear shunt capacitance theory accurately extracts the value of class-E components. In addition, the quality factor of the series resonator was considered to obtain a wide bandwidth for the power amplifiers. The purpose of using this method was to produce a simple topology and a high efficiency, which are two outstanding features of a class-E power amplifier. The experimental results show that a design was created using from a 130 to 180 MHz frequency with a bandwidth of 32% and a peak measured power added efficiency of 84.8%. This prototype uses an MRF282SR1 MOSFET transistor at a 3-W output power level. Furthermore, a summary of the experimental results compared with other high-efficiency articles is provided to validate the advantages of this method.
Bibliography:KISTI1.1003/JNL.JAKO201624238396692
ISSN:2671-7255
2671-7263