S. Haukka, J. Rusanen, A. Sethi, A. Pärssinen, T. Rahkonen and J. P. Aikio, "Broadband Analog Predistortion Circuits Utilizing Derivative Superposition," 2021 IEEE Nordic Circuits and Systems Conference (NorCAS), 2021, pp. 1-5, doi: 10.1109/NorCAS53631.2021.9599650.
Broadband analog predistortion circuits utilizing derivative superposition
|Author:||Haukka, Sauli1; Rusanen, Jere1; Sethi, Alok1;|
1Faculty of Information Technology and Electrical Engineering, University of Oulu, Finland
|Online Access:||PDF Full Text (PDF, 0.5 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022122273454
Institute of Electrical and Electronics Engineers,
|Publish Date:|| 2022-12-22
In this paper, we present two different broadband derivative superposition (DS) circuits for linearizing mm Wave integrated circuits and small power amplifiers implemented using 22nm CMOS SOI technology. By combining two parallel devices with different biasing different nonlinear characteristics can be provided. Measured results showed more than 30 dB IM3 improvement for conventional DS circuit values by utilizing back-gate voltage on an auxiliary amplifier. Above 3 dB gain expansion was measured by a complementary DS circuit, which uses parallel NMOS and PMOS devices. This offers a simple analog predistortion circuit for an integrated small power amplifier, for example.
7th IEEE Nordic circuits and systems conference, NORCAS 2021
|Host publication editor:||
IEEE Nordic Circuits and Systems Conference
|Type of Publication:||
A4 Article in conference proceedings
|Field of Science:||
213 Electronic, automation and communications engineering, electronics
This research has been financially supported by Academy of Finland research projects MIMEPA (grant 323779) and 6Genesis Flagship (grant 318927) and Infotech Oulu. GLOBALFOUNDRIES is acknowledged for silicon processing and technical support.
|Academy of Finland Grant Number:||
323779 (Academy of Finland Funding decision)
318927 (Academy of Finland Funding decision)
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