Title :
Design of the 80W Doherty power amplifier with offset lines
Author :
Shen, Guoqing ; Yao, Jincong ; Zhang, Guangfei ; Chen, Jun
Author_Institution :
Inst. of Phys. & Inf. Eng., Fuzhou Univ., Fuzhou, China
Abstract :
In this paper the design of a Doherty power amplifier is reported. The Doherty power amplifier is designed for high power applications for modern communication such as digital television system. In order to gain high efficiency and good linearity, the offset line technique is utilized. For verification, a 80W Doherty power amplifier is implemented by the computer simulation and circuit experiment. The measured results show the power added efficiency of 35.5% and the Adjacent Channel Power Ratio (ACPR) of -36dBc at the output power of 49dBm.
Keywords :
power amplifiers; ACPR; Doherty power amplifier design; adjacent channel power Ratio; computer simulation; digital television system; efficiency 35.5 percent; offset line technique; power 80 W; power added efficiency; Impedance; Linearity; Microwave amplifiers; Microwave circuits; Microwave communication; Power amplifiers; Power generation;
Conference_Titel :
Microwave and Millimeter Wave Technology (ICMMT), 2012 International Conference on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4673-2184-6
DOI :
10.1109/ICMMT.2012.6230287
