Broadband cross-slotted patch antenna for 5G millimeter-wave applications based on characteristic mode analysis

J Chen, M Berg, K Rasilainen, Z Siddiqui… - … on Antennas and …, 2022 - ieeexplore.ieee.org
This article proposes a wideband differentially fed dual-polarized magnetoelectric (ME)
dipole for millimeter-wave (mm-Wave) applications. Various electric and magnetic …

Wideband inter-beam interference cancellation for mmW/sub-THz phased arrays with squint

MY Javed, N Tervo, ME Leinonen… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
As relative bandwidth increases, beam squint, ie, frequency dependent directivity, limits the
wideband performance of phase-shifter steered arrays. This effect is already notable in 5G …

Beam-level frequency-domain digital predistortion for ofdm massive mimo transmitters

A Brihuega, L Anttila, M Valkama - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
In this article, a novel digital predistortion (DPD) solution for fully digital multiple-input–
multiple-output (MIMO) transmitters (TXs) is proposed. Opposed to classical DPD solutions …

Over-the-air phase calibration methods for 5G mmW antenna array transceivers

M Jokinen, O Kursu, N Tervo, A Pärssinen… - IEEE …, 2024 - ieeexplore.ieee.org
Calibration is essential to optimize the performance of any radio transceiver during its
development and manufacturing processes. This paper proposes over-the-air (OTA) …

An intermodulation distortion oriented 256-element phased-array calibration for 5G base station

Y Aoki, Y Kim, Y Hwang, H Kang, S Kim… - 2022 IEEE/MTT-S …, 2022 - ieeexplore.ieee.org
A novel phased-array calibration method is presented. The amplitude and the phase of
intermodulation distortion emitted from multiple antenna elements are characterized …

[PDF][PDF] 功放数字预失真线性化技术发展趋势与挑战

刘昕, 陈文华, 吴汇波, 冯正和 - 中国科学: 信息科学, 2022 - chenweixiang.github.io
摘要射频功率放大器是发射机的核心器件之一, 它在提供高效率的同时也成为了发射机非线性
失真的主要来源. 因此, 发射机往往采用额外的功放线性化技术以兼顾效率和线性度, 其中 …

A General Approach to Fully Linearize the Power Amplifiers in mMIMO with Low Complexity

G Prasad, H Johansson… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
A radio frequency (RF) power amplifier (PA) plays an important role to amplify the message
signal at higher power to transmit it to a distant receiver. Due to a typical nonlinear behavior …

An enhanced computational approach for multi-physics coupling analysis of active phased array antenna

F Shizhe, W Hao, L Zhixiong - Engineering Analysis with Boundary …, 2024 - Elsevier
An enhanced computational approach is formulated to assess the service performance of
active phased array antenna (APAA). For this approach, the discretized system equation of …

Fast Characterization of Phased-Array Elements Using Orthogonal Codes

Y Aoki, Y Kim, Y Hwang, H Kang, S Kim… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
This article presents a fast-phased array characterization of a 5G millimeter-wave (mmWave)
base station (BS). The amplitude, phase, and inter-modulation distortion of multiple antenna …

Digital predistortion for dual-linearly polarized millimeter-wave phased array user equipment

Q Wu, Y Zhu, H Yin, D Hou, P Chen… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
To accommodate the ongoing user's data explosion, many approaches like polarization
multiplexing are proposed to increase the uplink communication capacity with limited …