Linearity improvement analysis for power amplifiers at mm-wave frequencies

Joe Valliarampath; Saurabh Sinha

doi:10.1002/mop.28172

Linearity improvement analysis for power amplifiers at mm-wave frequencies

Joe Valliarampath, Saurabh Sinha

University of Pretoria

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

This article presents an adaptive predistortion (APD) linearization technique to improve the linearity of millimeter-wave power amplifiers (PAs), specifically at 60 GHz. The PA and the APD were designed using the 0.13 μm SiGe BiCMOS process. The predistortion is applied to the PA by varying the gain of the PA through its variable gain amplifier. The PA achieves a P_SAT of 11.97 dBm and IP1 dB of -10 dBm. After linearization the PA has an improved IP1 dB of -6 dBm. This linearization technique results in an optimum intermodulation distortion 3rd reduction of 10 dB. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:743-748, 2014

Original language	English
Pages (from-to)	743-748
Number of pages	6
Journal	Microwave and Optical Technology Letters
Volume	56
Issue number	3
DOIs	https://doi.org/10.1002/mop.28172
Publication status	Published - Mar 2014
Externally published	Yes

Keywords

60 GHz
SiGe HBT power amplifier
intermodulation distortion 3rd component
linearization
predistortion

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1002/mop.28172

Cite this

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title = "Linearity improvement analysis for power amplifiers at mm-wave frequencies",

abstract = "This article presents an adaptive predistortion (APD) linearization technique to improve the linearity of millimeter-wave power amplifiers (PAs), specifically at 60 GHz. The PA and the APD were designed using the 0.13 μm SiGe BiCMOS process. The predistortion is applied to the PA by varying the gain of the PA through its variable gain amplifier. The PA achieves a PSAT of 11.97 dBm and IP1 dB of -10 dBm. After linearization the PA has an improved IP1 dB of -6 dBm. This linearization technique results in an optimum intermodulation distortion 3rd reduction of 10 dB. {\textcopyright} 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:743-748, 2014",

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journal = "Microwave and Optical Technology Letters",

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AB - This article presents an adaptive predistortion (APD) linearization technique to improve the linearity of millimeter-wave power amplifiers (PAs), specifically at 60 GHz. The PA and the APD were designed using the 0.13 μm SiGe BiCMOS process. The predistortion is applied to the PA by varying the gain of the PA through its variable gain amplifier. The PA achieves a PSAT of 11.97 dBm and IP1 dB of -10 dBm. After linearization the PA has an improved IP1 dB of -6 dBm. This linearization technique results in an optimum intermodulation distortion 3rd reduction of 10 dB. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:743-748, 2014

KW - 60 GHz

KW - SiGe HBT power amplifier

KW - intermodulation distortion 3rd component

KW - linearization

KW - predistortion

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JO - Microwave and Optical Technology Letters

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Linearity improvement analysis for power amplifiers at mm-wave frequencies

Abstract

Keywords

ASJC Scopus subject areas

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