A new broadband phased array antenna with wide-scan and high-gain beam-scanning are
desirable to meet the requirements of future cellular networks. This paper discusses the …

This article proposes a novel method to train the digital predistortion (DPD) function in a
radio frequency (RF) beamforming array using feedback signals acquired from a near-field …

The nonlinearity of the fifth-generation (5G) millimeter-wave (mmWave) phased array
transmitter (TX) depends on the variations in the beamforming coefficients, eg, due to …

While digital predistortion (DPD) usually targets only the linearity performance of the radio–
frequency (RF) power amplifier (PA), this work addresses more than a single PA …

Accurate knowledge of multibeam radiation patterns of millimeter-wave (mmWave) phased
arrays is a key to mmWave radio system performance. The multibeam radiation patterns can …

This paper proposes a transfer learning neural network (TLNN) approach for digital pre-
distortion (DPD) of mm-Wave active phased arrays (APA) operated under variable signal …

Transmitter antenna arrays are typically coupled to several RF chains, which imposes
stringent requirements on the linearization of each power amplifier (PA) present in the …

In this article, we study digital predistortion (DPD)-based linearization with a specific focus
on millimeter-wave (mmW) active antenna arrays. Due to the very large-channel bandwidths …

In recent years, there has been significant interest and attention given to wireless power
transfer and electromagnetic energy harvesting. This study presents an ultra-wideband …

A simple and effective method for linearization of power amplifiers (PAs) is proposed. The
method is based on the second harmonic injection into the input of the PA. The second …