In this article, a modified beam-oriented digital predistortion (BO-DPD) utilizing the over-the-
air diversity feedbacks (OTA DFBs) is proposed for linearizing the hybrid beamforming (HBF) …

Doherty power amplifier (DPA) has shown great potentials in wireless communication
systems. However, the output power and efficiency of a DPA are very susceptible to load …

In a practical compact massive multiple-input multiple-output (MIMO) transmitter array, each
antenna or subarray is connected to an independent power amplifier (PA) with a modest …

The time-varying loading conditions that power amplifiers (PAs) experience in active
antenna systems degrade their overall performance. Consequently, the design of linear and …

This paper introduces a novel power amplifier integrated active antenna (PAIAA) with
increased efficiency that integrates a Class-F-1 gallium nitride (GaN) power amplifier (PA) …

This article presents an ultra-broadband load-insensitive Doherty power amplifier (DPA)
MMIC for fifth-generation (5G) smartphones to mitigate performance loss due to hand effects …

The specification of power amplifiers (PA) is closely related to humidity variation, and few
reports on the humidity properties of PA are available in the literature. Therefore, an …

This article presents a design method of dual-band power amplifier (PA) with switchable
balanced and Doherty modes to obtain a mismatch resilience and a larger concurrent …

In this paper a high efficiency power amplifier is presented with quasi VSWR immunity. It is
based on a new, high efficiency architecture, the Load Modulated Balanced Amplifier. By …

In this paper, the effect of antenna coupling in an active array on the integrated power
amplifiers (PAs) is studied. It is found that for multiple-input multiple-output (MIMO) …