Design Approach for Realization of Very High Efficiency Power Amplifiers
- 1 June 2007
- conference paper
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- No. 0149645X,p. 143-146
- https://doi.org/10.1109/mwsym.2007.380310
Abstract
This paper presents a systematic methodology for overcoming the practical design problems inherent to real world high efficiency power amplifier (PA) designs. The approach is based on measured RF waveforms and hence guarantees the definite accomplishment of high efficiency modes of operation. The study highlights the important design considerations which must be understood in order to correctly engineer voltage and current waveforms at the device output. The factors limiting performance from reaching ideal efficiency values are clarified and demonstrated on a real device. The impact of device scaling is also explained, showing the increased difficulty in realising high efficiency amplifier modes in large periphery devices.Keywords
This publication has 4 references indexed in Scilit:
- High-efficiency class-F RF/microwave power amplifiersIEEE Microwave Magazine, 2006
- Output universality in maximum efficiency linear power amplifiersInternational Journal of Circuit Theory and Applications, 2003
- Experimental Demonstration and CAD Investigation of Class B HFET Transistor Operation at Microwave FrequenciesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1998
- Class-F power amplifiers with maximally flat waveformsIEEE Transactions on Microwave Theory and Techniques, 1997