Paper

A 28 GHz Linear Envelope Tracking-Power Amplifier for LMDS Applications


Authors:
Abbas Mohammadi; Fatemeh Taghian; Parisa Momen Roodaki; Abdolali Abdipour
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 the 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
envelope tracking; power amplifier; millimeter wave; LMDS; linearization; digital predistortion
StartPage
62
EndPage
65
Doi
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