CDMA handset power amplifier with a switched output matching circuit for low/high power mode operations

IEEE MTT-S International Microwave Symposium Digest

Volumn 3, Issue , 2004, Pages 1523-1526

  Kim, Seungwoo ^a   Lee, Jongwoo ^a   Shin, Jinho ^b   Kim, Bumman ^a  

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

^b FCI Inc   (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

CODE DIVISION MULTIPLE ACCESS; DIODES; ELECTRIC CURRENTS; MOBILE TELECOMMUNICATION SYSTEMS; MODULATION; POWER AMPLIFIERS; SWITCHING CIRCUITS; TRANSISTORS;

ADJACENT-CHANNEL-POWER-RATIO; CDMA HANDSETS; LOW/HIGH POWER MODE OPERATIONS; SWITCHED OUTPUT MATCHING;

TELEPHONE SETS;

EID: 4544370272     PISSN: 0149645X     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (7)

1. J. F. Sevic, "Statistical Characterization of RF Power Amplifier Efficiency for CDMA Wireless Communication Systems," IEEE Wireless Communications Conference, pp. 110-113, 1997.
2. P. M. Asbeck, and L. E. Larson, "Synergistic Design of DSP and Power Amplifiers for Wireless Communications," Proc. APMC-2000, Dec. 2000.
3. T. Fowler, K. Burger, N. S. Cheng, A. Samelis, E. Enobakhare, and S. Rohlfing, "Efficiency Improvement Techniques at Low Power Levels for Linear CDMA and WCDMA Power Amplifiers," IEEE RFIC Symposium Digest, pp. 41-44, 2002.
4. M. Iwamoto, A. Williams, P. F. Chen, A. Metzger, C. Wang, L. E. Larson, and P. M. Asbeck, "An Extended Doherty Amplifier with High Efficiency Over a Wide Power Range," IEEE MTT-S Digest, Jun. 2001.
5. Y. Yang, J. Yi, Y. Y. Woo, and B. Kim, "Optimum Design for Linearity and Efficiency of a Microwave Doherty Amplifier using a New Load Matching Technique," Microwave Journal, pp. 20-36, Dec. 2001
6. J. Cha, Y. Yang, B. Shin, and B. Kim, "An Adaptive Bias Controlled Power Amplifier with a Load-Modulated Combining Scheme for High Efficiency and Linearity," IEEE MTT-S Digest, Jun. 2003.
7. K. Yang, G. I. Haddad, and J. R. East, "High-Efficiency Class-A Power Amplifiers with a Dual-Bias-Control Scheme," IEEE Trans. Microwave Theory Tech., vol. 47, no. 8, pp. 1426-1432, Aug. 1999.