Design and characterization of a microwave feed-forward amplifier with improved wide-band distortion cancellation

IEEE Transactions on Microwave Theory and Techniques

Volumn 49, Issue 1, 2001, Pages 200-203

  Gary Hau, Y K ^a,b   Postoyalko, Vasil ^a,b   Richardson, John R ^a,b  

^a UNIVERSITY OF LEEDS   (United Kingdom)

^b NEC CORPORATION   (Japan)

Author keywords

Feed forward amplifier; Linear amplifier; Linearization technique

Indexed keywords

BANDWIDTH; DELAY CIRCUITS; EQUALIZERS; INTERMODULATION; SIGNAL DISTORTION;

MICROWAVE FEEDFORWARD AMPLIFIERS; SIGNAL CANCELLATION;

MICROWAVE AMPLIFIERS;

EID: 0034825725     PISSN: 00189480     EISSN: None     Source Type: Journal    
DOI: 10.1109/22.900009     Document Type: Article

References (8)

1. J. K. Cavers, "Adaptive behavior of a feedforward amplifier linearizer," IEEE Trans. Veh. Thechnol., vol. 44, pp. 31-39, Feb. 1995.
2. S. Narahashi and T. Nojima, "Extremely low-distortion multi-carrier amplifier -Self-adjusting feedforward amplifier," in Proc. IEEE Int. Commun. Conf., June 1991, pp. 1485-1490.
3. Y. K. G. Hau, V. Postoyalko, and J. R. Richardson, "Sensitivity of distortion cancellation in feedforward amplifiers to loops imbalances," in IEEE MTT-S Int. Microwave Symp. Dig., Denver, CO, June 1997, pp. 1695-1698.
4. J. P. Dixon, "A solid-state amplifier with feedforward correction for linear single-sideband applications," in Proc. IEEE Int. Commun. Conf., 1986, pp. 728-732.
5. PST Inc., "High power feed forward amplification systems," Microwave J., vol. 37, no. 2, pp. 128-133, Feb. 1994.
6. Y. K. G. Hau, V. Postoyalko, and J. R. Richardson, "Compensation of amplifier nonlinear phase response to improve wideband distortion cancellation of feedforward amplifiers," Electron. Lett., vol. 33, no. 6, pp. 500-502, Mar. 1997.
7. S. O. Scanlan and J. D. Rhodes, "Microwave allpass networks -Part I," IEEE Trans. Microwave Theory Tech., vol. 16, pp. 62-71, Feb. 1968.
8. K. Konstantinou, P. Gardner, and D. K. Paul, "Optimization method for feedforward linearization of power amplifiers," Electron. Lett., vol. 29, no. 29, pp. 1633-1635, Sept. 1993.