A linearization technique for bipolar amplifiers based on derivative superposition

A linearization technique for bipolar amplifiers based on Derivative Superposition is presented. The proposed technique provides excellent linearity, while having low sensitivity on the bias conditions. A demonstrator circuit, along with a reference circuit using out-of-band linearization for linear...

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Bibliographic Details
Main Authors: D'Avino, M., van der Meulen, J. M. M., Malotaux, E. S., Pelk, M., de Vreede, L. C. N., Groenewegen, M. W. A., Mattheijssen, P., van der Heijden, M. P.
Format: Conference Proceeding
Language:English
Subjects:
Baseband
bipolar transistors
Capacitance
Harmonic analysis
Intermodulation distortion
Linearity
Linearization techniques
Power amplifiers
Sensitivity
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Summary:A linearization technique for bipolar amplifiers based on Derivative Superposition is presented. The proposed technique provides excellent linearity, while having low sensitivity on the bias conditions. A demonstrator circuit, along with a reference circuit using out-of-band linearization for linearity comparison, have been designed and implemented in a 0:25μm SiGe:C BiCMOS technology to show the effectiveness of the proposed approach. Measured results show a significant IM3 improvement up to compression compared to the reference circuit.
ISSN:2378-590X
DOI:10.1109/BCTM.2017.8112901