Browse > Article
http://dx.doi.org/10.12673/jant.2014.18.3.229

High Efficiency Power Amplifier using Analog Predistorter  

Choi, Jang-Hun (Department of Electronic Engineering, Kumoh National Institute of Technology)
Kim, Young (Department of Electronic Engineering, Kumoh National Institute of Technology)
Yoon, Young-Chul (Department of Electronic Engineering, Kwandong University)
Publication Information
Journal of Advanced Navigation Technology / v.18, no.3, 2014 , pp. 229-235 More about this Journal
Abstract
This paper presents the Doherty power amplifier with a digitally controlled analog predistorter circuit of Scintera Corp. to produce high power efficiency and high linearity performance. The analog predistorter improves the linearity performance because of controlling amplitude and phase values of input signal in order to improve intermodulation performance of power amplifier. Also, the power amplifier is designed by the Doherty technology to obtain the high efficiency performance. To validate the Scintera's analog predistorter, we are implemented the power amplifier with Doherty method at center frequency 2150 MHz. Compared with the balanced amplifier, the power amplifier is improved above 11% enhanced efficiency and more than 15 dB ACPR improvement.
Keywords
Analog predistorter; Doherty amplifier; Power efficiency; Linearity; Intermodulation distortion;
Citations & Related Records
연도 인용수 순위
  • Reference
1 S. C. Cripps, Advanced Techniques in RF Power Amplifier Design, Norwood MA: Artech House, 2002.
2 Joel Vuolevi and Timo Rahkonen, Distortion in RF power Amplifier, Norwood, MA: Artech House, 2003.
3 Guillermo Gonzalez, Microwave Transistor Amplifiers Analysis and Design, 2nd ed. Upper Saddle River, NJ: Prentice-Hall, 1997.
4 Y. S. Lee and Y.H. Jeong, "A high-efficiency class-E GaN HEMT power amplifier for WCDMA applications," IEEE Microwave and Wireless Components Letters, Vol. 17, No. 8, pp. 622-624, Aug. 2007.   DOI   ScienceOn
5 Y.S. Lee, M.W. Lee, and Y.H. Jeong, "A 1 GHz GaN HEMT based class E power amplifier with 80% efficiency," Microwave and Optical Technology Letters, Vol. 50, No. 11, pp. 2989-2992, Nov. 2008.   DOI   ScienceOn
6 T.Mury and V.F. Fusco, "Inverse class-E amplifier with transmission line harmonic suppression," IEEE Transactions on Circuits and Systems I, Regular Papers, Vol. 54, No. 7. pp. 1555-1561, Jul. 2007.   DOI   ScienceOn
7 F.H. Raab, "Class F amplifiers with maximally flat waveforms," IEEE Transactions on Microwave Theory and Techniques, Vol. 49, No. 6, pp.1162-1166, Jun. 2001.   DOI   ScienceOn
8 Y.Y. Woo, Y. Yang, and B. Kim, "Analysis and experiments for high efficiency class F and inverse class F power amplifiers," IEEE Transactions on Microwave Theory and Techniques, Vol. 54, No. 5, pp.1969-1974, May. 2006.   DOI   ScienceOn
9 Y.S. Lee, M.W. Lee, G.B. Choi, and Y.H. Jeong, "New an predistorter using mixing peration for independent control of IM3 components," Microwave and Optical Technology Letters, Vol. 49, No. 10, pp. 2552-2555, Oct. 2007.   DOI   ScienceOn
10 Scintera Homepage http://www.scintera.com