This article presents a millimeter-wave (mm-wave) transmitter (TX) front-end employing a
new inverse outphasing architecture with current-mode power amplifiers (PAs). This study …

Advanced wireless radio standards set stringent requirements on the bandwidth, frequency
range and reconfigurability of base-station transmitters. Recently, the outphasing concept …

Radio transmitters are evolving towards digital-intensive solutions to exploit reconfigurability
and benefit from CMOS process scaling. Outphasing has been identified as a suitable …

We present a theoretically comprehensive treatment of outphasing systems that utilize radio-
frequency high-efficiency PAs. We separately analyze encoding and clipping distortions and …

This paper presents a packaged 28-GHz Chireix outphasing transmitter (TX) for power
amplifier (PA) efficiency enhancement at both peak and back-off output power (PBO). The …

An overview of outphasing transmitters is given. Starting from its basic principles, we discuss
its advantages and drawbacks compared to other high-efficiency amplifier configurations …

High peak and average efficiency is an important feature of power amplifiers (PAs) for 5G
millimeter-wave communication. This article reviews the challenges of conventional …

As mm-wave offers broader spectra and proportionate capacity increase, it will be
extensively employed in 5G-and-beyond communication systems to address the …

This work presents an outphasing power amplifier that directly amplifies a modulated RF
input. The approach eliminates the need for multiple costly IQ modulators and baseband …

This paper presents a holistic approach to design and linearize a wideband outphasing
power amplifier (PA) to efficiently amplify a 200 MHz bandwidth (BW) signal compliant with …