Application of New Matching Technique in Doherty Amplifier

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Abstract:

According to the shortage of the traditional offset line in Doherty power amplifier, a new offset line technique is proposed to match carrier amplifier with the load and to improve the performance of the Doherty amplifier. By simulation of the computer software, a higher efficiency is obtained using the new offset line comparing the two kinds of offset lines. The new offset line matching technique could be applied in the system with high linearity and low power operation.

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1091-1094

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January 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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[1] W.H. Doherty, A new high efficiency power amplifier for modulated waves, Proc. IRE, Vol. 24, No. 9, September 1936, pp.1163-1182.

DOI: 10.1109/jrproc.1936.228468

Google Scholar

[2] S. C. Cripps, RF Power Amplifiers for Wireless Communications[M]. Nor-wood, MA: Artech House, (2006).

Google Scholar

[3] Li You-qi, Nan Jing-chang, Li Jiu-chao, Design and Simulation of a Doherty Power Amplifier for the Base Station[C], ICCP 2010, pp.347-349.

DOI: 10.1109/iccps.2011.6092212

Google Scholar

[4] B. Kim, J. Kim, Ildu Kim, J. Cha, and S. Hong, Microwave Doherty Power Amplifier for High Efficiency and Linearity[J], IEEE, 2006, pp.22-25.

DOI: 10.1109/inmmic.2006.283499

Google Scholar

[5] Paolo Colantonio, Franco Giannimi, and Ernesto Limiti, High Efficiency RF and Microwave Solid State Power Amplifiers[J], Wiley, 2009 , pp.435-493.

DOI: 10.1002/9780470746547

Google Scholar

[6] Deguchi. H, Ui. N, Ebihara. K, Inoue. K, Yoshimura. N, Takahashi. H, A 33W GaN HEMT Doherty amplifier with 55% drain efficiency for 2. 6GHz base stations[J], IEEE MTT-S, 2009, pp.1273-1276.

DOI: 10.1109/mwsym.2009.5165936

Google Scholar