Linearity improvement analysis for PAs at mm-wave frequencies
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Date
Authors
Valliarampath, Joe
Sinha, Saurabh
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
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 mm 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
210 dBm. After linearization the PA has an improved IP1 dB of 26
dBm. This linearization technique results in an optimum intermodulation
distortion 3rd reduction of 10 dB.
Description
Keywords
Linearization, Predistortion, 60 GHz, SiGe HBT power amplifier, Intermodulation distortion 3rd component
Sustainable Development Goals
Citation
Valliarampath, J & Sinha, S 2014, 'Linearity improvement analysis for PAs at mm-wave frequencies', Microwave and Optical Technology Letters, vol. 56, no. 3, pp. 743-748.