NDLI: A systematic methodology to design analog predistortion linearizer for dual inflection power amplifiers

Content Provider	IEEE Xplore Digital Library
Author	Rezaei, S. Hashmi, M.S. Dehlaghi, B. Ghannouchi, F.M.
Copyright Year	2011
Description	Author affiliation: iRadio Lab., Department of Electrical and Computer Engineering, Schulich School of Engineering, University of Calgary, AB, T2N1N4, Canada (Rezaei, S.; Hashmi, M.S.; Dehlaghi, B.; Ghannouchi, F.M.)
Abstract	This paper presents a systematic methodology to design a diode-based RF predistortion linearizer that can be used to linearize power amplifiers with dual inflection points in their distortion characteristics. The proposed structure contains anti parallel configuration of Schottky diodes, complemented with a PIN diode in parallel, connected to through and coupled ports of a 90° hybrid coupler using λ/4 transmission lines. The use of a PIN diode in the linearizer provides it with an extra level of freedom in achieving the desired level of amplitude and inflection depth in the AM/AM characteristic. A systematic design procedure using this configuration is proposed and applied to linearize a commercial power amplifier. Two tone test experimental results show that the IM3 cancellation of 10 dB in 1 MHz separation between tones at 2.14 GHz can be achieved.
Starting Page	1
Ending Page	4
File Size	616899
Page Count	4
File Format	PDF
ISBN	9781612847542
ISSN	0149645X
e-ISBN	9781612847573
e-ISBN	9781612847566
DOI	10.1109/MWSYM.2011.5972885
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-05
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Schottky diodes Admittance Nonlinear distortion PIN photodiodes Power generation Predistortion Dual inflection points Analog predistorter PIN diode APLAC model
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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