Title :
A 28 GHz linear envelope tracking-power amplifier for LMDS applications
Author :
Roodaki, Parisa Momen ; Mohammadi, Abbas ; Abdipour, Abdolali ; Taghian, Fatemeh
Author_Institution :
Electr. Eng. Dept., Amirkabir Univ. of Technol., Tehran, Iran
Abstract :
This paper presents the design and simulation of an envelope tracking power amplifier (ET-PA) for 28 GHz LMDS applications. A linearization algorithm is also employed in digital domain in order to reduce the distortion of the system. Simulation shows that proposed ET-PA delivers 19dBm output power with 21dB linear gain. Power added efficiency of this amplifier is more than 41% which shows about 15 percent efficiency enhancement compared to conventional LMDS PAs.
Keywords :
power amplifiers; LMDS applications; frequency 28 GHz; linear envelope tracking-power amplifier; linearization algorithm; power added efficiency; Algorithm design and analysis; Gain; Gallium arsenide; PHEMTs; Power amplifiers; Simulation; Wireless communication; LMDS; digital predistortion; envelope tracking; linearization; millimeter wave; power amplifier;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057386
