Application of eGaN FETs for highly efficient Radio Frequency Power Amplifier
Conference: CIPS 2012 - 7th International Conference on Integrated Power Electronics Systems
03/06/2012 - 03/08/2012 at Nuremberg, Germany
Proceedings: CIPS 2012
Pages: 6Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Cucak, D.; Vasic, M.; García, O.; Oliver, J. A.; Alou, P.; Cobos, J. A. (Universidad Politécnica de Madrid, José Gutierrez Abascal 2, 28006 Madrid, Spain)
In this paper, application of new technological solution for power switches based on Gallium Nitride (GaN) in Envelope Amplifier for Radio Frequency Power Amplifier is proposed. The goal of this application is the efficiency enhancement at high switching frequency, due to superior conductivity and switching characteristics of enhancement mode GaN FETs over Si devices. Experimental results provided comparison between the performance of GaN FETs on one hand and standard Si MOSFETs and LDMOS transistors on the other. Advantages of GaN devices were experimentally verified as well as the operating conditions (regarding the output power and switching frequency) where these advantages exist.