The 5G wireless revolution presents some dramatic challenges to the design of handsets
and communication infrastructures, as 5G targets higher than 10 Gbps download speed …

Due to the heavy reliance of millimeter-wave (mmWave) wireless systems on directional
links, beamforming (BF) with high-dimensional arrays is essential for cellular systems in …

This article presents a mixed-signal Doherty power amplifier (MSDPA) architecture for
simultaneous linearity and efficiency enhancement. The MSDPA comprises one analog …

In this paper, we proposed and designed a digitally configured versatile RF quadrature
transmitter. The transmitter efficiency was enhanced by IQ cell sharing and the deactivation …

This paper presents an all-digital class-G quadrature switched-capacitor power amplifier (Q-
SCPA) implemented in 65 nm CMOS. It combines in-phase (I) and quadrature (Q) signals on …

This article presents a 15-bit quadrature digital power amplifier (DPA) with in-phase and
quadrature (IQ)-cell-sharing and transformer-based Doherty operation, which compensates …

This article presents a switched-transformer-based polar Doherty digital power amplifier
(DPA) for deep back-off efficiency enhancement. A single-transformer-footprint parallel …

A 30.1-dBm quadrature transmitter is implemented based on Class-G IQ-cell-shared
switched-capacitor power amplifier (SCPA) and voltage mismatch compensation techniques …

This paper presents an all-digital multiphase switched capacitor power amplifier (MP-SCPA)
implemented in a 130-nm CMOS. Quadrature architectures suffer reduced output power and …

This article presents a wideband, energy-efficient digital transmitter (DTX) suitable for multi-
mode/multi-band wireless communication applications. It features various operation modes …