A highly efficient doherty power amplifier employing optimized carrier cell

European Microwave Week 2009, EuMW 2009: Science, Progress and Quality at Radiofrequencies, Conference Proceedings - 39th European Microwave Conference, EuMC 2009

Volumn , Issue , 2009, Pages 1720-1723

  Moon, Junghwan ^a   Woo, Young Yun ^b   Kim, Bumman ^a  

^a Pohang University of Science and Technology (POSTECH)   (South Korea)

^b SAMSUNG Electronics   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

BACK-OFF; DOHERTY; DOHERTY POWER AMPLIFIER; GAN HEMTS; IMPROVING EFFICIENCY; KNEE VOLTAGE; LOAD CONDITION; LOAD IMPEDANCE; MEASURED RESULTS; NOVEL DESIGN; OUTPUT POWER LEVELS;

GALLIUM NITRIDE; HETEROJUNCTION BIPOLAR TRANSISTORS; HIGH ELECTRON MOBILITY TRANSISTORS; POWER AMPLIFIERS; SEMICONDUCTING GALLIUM;

MICROWAVES;

EID: 72949109116     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/EUMC.2009.5296569     Document Type: Conference Paper

References (7)

1. S.C. Cripps, RF Power Amplifiers for Wireless Communications. 2nd ed. Norwood, MA: Artech House, 2006.
2. F. H. Raab, P. Asbeck, S. Cripps, P. B. Kenington, Z. B. Popović, N. Pothecary, J. F. Sevic, and N. O. Sokal "Power amplifiers and transmitters for RF and microwave," IEEE Trans. Microw. Theory Tech., vol. 50, no. 3, pp. 814-826, Mar. 2002.
3. F. H. Raab, "Efficiency of Doherty RF power-amplifier systems," IEEE Trans. Broadcast., vol. BC-33, no. 3, pp. 77-83, Sep. 1987.
4. W. H. Doherty, "A new high efficiency power amplifier for modulated waves,"Proc. IRE, vol. 24, no. 9, pp. 1163-1182, 1936.
5. Y. Yang, J. Yi, Y. Y. Woo, and B. Kim, "Optimum design for linearity and efficiency of microwave Doherty amplifier using a new load matching technique,"Microw. J., vol. 44, no. 12, pp. 20-36, Dec. 2001.
6. J. Moon, J. Kim, I. Kim, J. Kim, and B. Kim "Highly efficient three-way saturated Doherty amplifier with digital feedback predistortion," IEEE Microw. Wireless Compon. Lett., vol. 18, no. 8, pp. 539-541, Aug. 2008.
7. J. Kim, J. Moon, Y. Y. Woo, S. Hong, I. Kim, J. Kim, and B. Kim, "Analysis of a fully matched saturated Doherty amplifier with excellent efficiency," IEEE Trans. Microw. Theory Tech., vol. 56, no. 2, pp. 328-338, Feb. 2008.