2007•Information and Electronic EngineeringRequires access

Analysis of Microwave Power Amplifier’s Nonlinear Distortion and its Linearization Technology

GE Ru-hu

Abstract

The microwave amplifier requires higher linearity along with the development of 3G-communication technology.In this paper,the characteristic of microwave amplifier’s nonlinear distortion is analyzed.Several technologies to improve microwave power amplifier’s linearization are introduced.The advantages and disadvantages of all technologies are presented.At last,a W-CDMA linear amplifier is developed basing on the back-off technology,and the testing result is offered as well.

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Key concepts: Linearization, Amplifier, Electronic engineering, Linearity, Direct-coupled amplifier, Microwave, Electrical engineering, Distortion (music)