Millimeter-wave power amplifier integrated circuits for high dynamic range signals

H Wang, PM Asbeck, C Fager - IEEE Journal of Microwaves, 2021 - ieeexplore.ieee.org
The next-generation 5G and beyond-5G wireless systems have stimulated a substantial
growth in research, development, and deployment of mm-Wave electronic systems and …

Predistortion-based linearization for 5G and beyond millimeter-wave transceiver systems: A comprehensive survey

MF Haider, F You, S He, T Rahkonen… - … Surveys & Tutorials, 2022 - ieeexplore.ieee.org
The next-generation (5G/6G) wireless communication aims to leapfrog the currently
occupied sub-6 GHz spectrum to the wideband millimeter-wave (MMW) spectrum. However …

Piecewise digital predistortion for mmWave active antenna arrays: Algorithms and measurements

A Brihuega, M Abdelaziz, L Anttila… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
In this article, we describe a novel framework for digital predistortion (DPD)-based
linearization of strongly nonlinear millimeter-wave active antenna arrays. Specifically, we …

Balanced-to-Doherty mode-reconfigurable power amplifier with high efficiency and linearity against load mismatch

H Lyu, K Chen - IEEE Transactions on Microwave Theory and …, 2020 - ieeexplore.ieee.org
A balanced-to-Doherty (B2D) mode-reconfigurable power amplifier (PA) is presented in this
article, which is endowed with a unique capability of maintaining high linearity and high …

Digital predistortion of 5G massive MIMO wireless transmitters based on indirect identification of power amplifier behavior with OTA tests

X Wang, Y Li, C Yu, W Hong… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
In this article, we present a novel digital predistortion (DPD) architecture for multiple-input-
multiple-output (MIMO) transmitters using a real-time single-channel over-the-air (OTA) data …

Wide-scan and energy-saving phased arrays by exploiting penrose tiling subarrays

FA Dicandia, S Genovesi - IEEE Transactions on Antennas and …, 2022 - ieeexplore.ieee.org
A partitioning scheme based on Penrose-inspired subarrays is proposed for wide-scan
planar phased arrays. The regular triangular lattice adopted for the arrangement of the …

Digital predistortion of phased-array transmitter with shared feedback and far-field calibration

N Tervo, B Khan, O Kursu, JP Aikio… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Digital predistortion (DPD) of a phased array requires that multiple transmit paths must be
measured by a feedback (FB) receiver (Rx). In this article, we propose an FB concept for …

Linearity-enhanced quasi-balanced Doherty power amplifier with mismatch resilience through series/parallel reconfiguration for massive MIMO

H Lyu, Y Cao, K Chen - IEEE Transactions on Microwave …, 2021 - ieeexplore.ieee.org
A reconfigurable series/parallel quasi-balanced Doherty power amplifier (QB-DPA) is
presented with a unique capability of maintaining high linearity and high efficiency against …

Digital predistortion for multiuser hybrid MIMO at mmWaves

A Brihuega, L Anttila, M Abdelaziz… - IEEE Transactions …, 2020 - ieeexplore.ieee.org
Efficient mitigation of power amplifier (PA) nonlinear distortion in multi-user hybrid precoding
based broadband mmWave systems is an open research problem. In this article, we carry …

1-d reconfigurable pseudo-doherty load modulated balanced amplifier with intrinsic vswr resilience across wide bandwidth

J Guo, Y Cao, K Chen - IEEE Transactions on Microwave …, 2023 - ieeexplore.ieee.org
This article presents the first-ever wideband pseudo-Doherty load-modulated balanced
amplifier (PD-LMBA) with load-mismatch tolerance through 1-D reconfiguration. It is …