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Vol. 155, Issue 8, August 2013, pp. 242-246

 

Bullet

 

Application of New Matching Technique in Doherty Amplifier
 
* Jun Chen, Kaixiong Su, Xiyuan Huang, Guoqing Shen

Institute of Physics and Information Engineering of Fuzhou University, 350002, China

* Tel.: 086013960901718, fax: 086059183709458

* E-mail: bamboo_chen@126.com

 

Received: 16 May 2013   /Accepted: 12 August 2013   /Published: 20 August 2013

Digital Sensors and Sensor Sysstems

 

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 technique could be applied in the system with high linearity and low power operation.

 

Keywords: Doherty power amplifier, Offset line, Analogous offset line.

 

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