Compensating Quadrature Hybrid Mismatch Effects in Integrated Balanced Power Amplifier
Rusanen, Jere; Shabanzadeh, Negar; Pärssinen, Aarno; Rahkonen, Timo; Aikio, Janne P. (2023-11-06)
IEEE
06.11.2023
J. Rusanen, N. Shabanzadeh, A. Pärssinen, T. Rahkonen and J. P. Aikio, "Compensating Quadrature Hybrid Mismatch Effects in Integrated Balanced Power Amplifier," 2023 IEEE Nordic Circuits and Systems Conference (NorCAS), Aalborg, Denmark, 2023, pp. 1-5, doi: 10.1109/NorCAS58970.2023.10305456.
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© 2023 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202311283392
https://urn.fi/URN:NBN:fi:oulu-202311283392
Tiivistelmä
Abstract
This paper presents techniques to mitigate frequency dependent amplitude response of quadrature hybrid in an integrated quadrature balanced power amplifier (PA). The studied structure consists of stacked pseudo-differential power amplifiers and transformer-based quadrature hybrids designed with 22 nm CMOS FDSOI operating at 26 GHz. We propose two techniques to compensate frequency-dependent amplitude response of the quadrature hybrid when operating away from the center frequency. First one involves dual input drive and second asymmetric biasing. Measurements with continuous wave (CW) and high dynamic range fifth generation (5G) modulated signals demonstrate that the described techniques improve output power that can be reached within the linearity specifications when operating away from the center frequency.
This paper presents techniques to mitigate frequency dependent amplitude response of quadrature hybrid in an integrated quadrature balanced power amplifier (PA). The studied structure consists of stacked pseudo-differential power amplifiers and transformer-based quadrature hybrids designed with 22 nm CMOS FDSOI operating at 26 GHz. We propose two techniques to compensate frequency-dependent amplitude response of the quadrature hybrid when operating away from the center frequency. First one involves dual input drive and second asymmetric biasing. Measurements with continuous wave (CW) and high dynamic range fifth generation (5G) modulated signals demonstrate that the described techniques improve output power that can be reached within the linearity specifications when operating away from the center frequency.
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