Green communications: Digital predistortion for wideband RF power amplifiers
The RF PA, as one of the most essential components in any wireless system, suffers from
inherent nonlinearities. The output of a PA must comply with the linearity requirement …
inherent nonlinearities. The output of a PA must comply with the linearity requirement …
A switched-capacitor RF power amplifier
A fully integrated switched-capacitor power amplifier (SCPA) utilizes switched-capacitor
techniques in an EER/Polar architecture. It operates on the envelope of a nonconstant …
techniques in an EER/Polar architecture. It operates on the envelope of a nonconstant …
Fractional- Phase-Locked-Loop-Based Frequency Synthesis: A Tutorial
PE Su, S Pamarti - IEEE Transactions on Circuits and Systems …, 2009 - ieeexplore.ieee.org
The fundamentals and state of the art in fractional-N phase-locked-loop (PLL)-based
frequency synthesis are reviewed. Particular emphasis is placed on delta-sigma fractional-N …
frequency synthesis are reviewed. Particular emphasis is placed on delta-sigma fractional-N …
A class-G voltage-mode Doherty power amplifier
V Vorapipat, CS Levy… - IEEE Journal of Solid …, 2017 - ieeexplore.ieee.org
This paper presents the combination of two back-off efficiency enhancement techniques, the
voltage-mode Doherty and the class-G switched-capacitor power amplifier (PA), to achieve …
voltage-mode Doherty and the class-G switched-capacitor power amplifier (PA), to achieve …
A class-G switched-capacitor RF power amplifier
A switched-capacitor power amplifier (SCPA) that realizes an envelope elimination and
restoration/polar class-G topology is introduced. A novel voltage-tolerant switch enables the …
restoration/polar class-G topology is introduced. A novel voltage-tolerant switch enables the …
A multiband RF antenna duplexer on CMOS: Design and performance
An RF duplexer has been fabricated on a CMOS IC for use in 3G/4G cellular transceivers.
The passive circuit sustains large voltage swings in the transmit path, and isolates the …
The passive circuit sustains large voltage swings in the transmit path, and isolates the …
Design of a transformer-based reconfigurable digital polar Doherty power amplifier fully integrated in bulk CMOS
This paper presents a digital polar Doherty power amplifier (PA) fully integrated in a 65 nm
bulk CMOS process. It achieves+ 27.3 dBm peak output power and 32.5% peak PA drain …
bulk CMOS process. It achieves+ 27.3 dBm peak output power and 32.5% peak PA drain …
A broadband mixed-signal CMOS power amplifier with a hybrid class-G Doherty efficiency enhancement technique
This paper presents a broadband mixed-signal CMOS power amplifier (PA) with a hybrid
Class-G Doherty architecture for PA efficiency enhancement up to the deep power back-off …
Class-G Doherty architecture for PA efficiency enhancement up to the deep power back-off …
A quadrature switched capacitor power amplifier
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 …
SCPA) implemented in 65 nm CMOS. It combines in-phase (I) and quadrature (Q) signals on …
A broadband switched-transformer digital power amplifier for deep back-off efficiency enhancement
Y Yin, T Li, L **ong, Y Li, H Min… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents a switched-transformer-based polar Doherty digital power amplifier
(DPA) for deep back-off efficiency enhancement. A single-transformer-footprint parallel …
(DPA) for deep back-off efficiency enhancement. A single-transformer-footprint parallel …