Linearity optimization of a high power doherty amplifier based on post-distortion compensation

IEEE Microwave and Wireless Components Letters

Volumn 15, Issue 11, 2005, Pages 748-750

  Cho, Kyoung Joon ^a   Kim, Wan Jong ^a   Kim, Jong Heon ^b   Stapleton, Shawn P ^a  

^a SIMON FRASER UNIVERSITY   (Canada)

^b Kwangwoon University   (South Korea)

Author keywords

Doherty amplifier; Linear power amplifier; Post distortion; Push pull; Wideband code division multiple access (W CDMA)

Indexed keywords

CODE DIVISION MULTIPLE ACCESS; FIELD EFFECT TRANSISTORS; MOS DEVICES; OPTIMIZATION; SIGNAL DISTORTION;

DOHERTY AMPLIFIER; LINEAR POWER AMPLIFIER; POST-DISTORTION; PUSH-PULL; WIDEBAND-CODE DIVISION MULTIPLE ACCESS (W--CDMA);

POWER AMPLIFIERS;

EID: 28744440180     PISSN: 15311309     EISSN: None     Source Type: Journal    
DOI: 10.1109/LMWC.2005.858985     Document Type: Article

References (6)

1. S. C. Cripps, RF Power Amplifier for Wireless Communications, Nor-wood, MA: Artech House, 1999.
2. B. Shin, J. Cha, J. Kim, Y. Y. Woo, J. Yi, and B. Kim. "Linear power amplifier based on 3-way Doherty amplifier with predistorter," in IEEE MTT-S Dig., Jun. 2004. pp. 2027-2030.
3. Y. Zhao, M. Iwamoto, L. E. Larson, and P. M. Asbeck, "Doherty amplifier with DSP control to improve performance in CDMA operation." in IEEE MTT-S Dig., Jun. 2003. pp. 687-690.
4. K. J. Cho, J. H. Kim, and S. P. Stapleton, "A highly efficient Doherty feedforward linear power amplifier for W-CDMA base-station applications," IEEE Trans. Microw. Theory Tech., vol. 53. no. 1. pp. 292-300, Jan. 2005.
5. Y. Yang, J. Cha, B. Shin, and B. Kim, "A fully matched N-way Doherty amplifier with optimizated linearity," IEEE Trans. Microw. Theory Tech., vol. 51, no. 3, pp. 986-993, Mar. 2003.
6. C. Fager, J. C. Pedro, N. B. Carvalho, and H. Zirath, "Prediction of IMD in LDMOS transistor amplifiers using a new large-signal model," IEEE Trans. Microw. Theory Tech., vol. 50. no. 12. pp. 2834-2842. Dec. 2002.