High efficiency power amplifiers for modern mobile communications: The load-modulation approach

C Ramella, A Piacibello, R Quaglia, V Camarchia… - Electronics, 2017 - mdpi.com
Modern mobile communication signals require power amplifiers able to maintain very high
efficiency in a wide range of output power levels, which is a major issue for classical power …

New mixed-mode design methodology for high-efficiency outphasing chireix amplifiers

HC Chang, Y Hahn, P Roblin… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
A new design methodology providing optimal mixed-mode operation for dual-input class-F
outphasing Chireix amplifiers is presented. The design starts with single-transistor class-F …

Waveform engineering: State‐of‐the‐art and future trends

A Raffo, V Vadala, G Bosi, F Trevisan… - … Journal of RF and …, 2017 - Wiley Online Library
The term waveform engineering denotes all those circuit design techniques that are based
on shaping the transistor voltage and current waveforms. From a general perspective, these …

Al0. 30Ga0. 70N/GaN MODFET with triple-teeth metal for RF and high-power applications

SK Dubey, A Islam - Physica Scripta, 2022 - iopscience.iop.org
A modulation-doped field-effect transistor (MODFET) has been investigated in this paper. It
is also called HEMT (high electron mobility transistor). The proposed MODFET is made up of …

Dynamic-bias S-parameters: A new measurement technique for microwave transistors

G Avolio, A Raffo, V Vadalà, G Vannini… - IEEE Transactions …, 2016 - ieeexplore.ieee.org
We present the first application of the recently introduced dynamic-bias measurement to the
acquisition of the scattering (S-) parameters of microwave transistors under large signal …

Catalyzing satellite communication: A 20W Ku-Band RF front-end power amplifier design and deployment

J Chen, F Wang, D Zhang, J Liu, H Wu, Z Zhou, H Yang… - Plos one, 2024 - journals.plos.org
This paper presents a groundbreaking Ku-band 20W RF front-end power amplifier (PA),
designed to address numerous challenges encountered by satellite communication …

Asymmetrically-driven current-based chireix class-F power amplifier designed using an embedding device model

HC Chang, P Roblin, JA Galaviz-Aguilar… - 2017 IEEE MTT-S …, 2017 - ieeexplore.ieee.org
Model-based nonlinear embedding is applied for the first time to the design of an
asymmetrically-driven class-F Chireix power amplifier (PA). The embedding model of a 15 W …

Comprehensive physics-based model for millimeterwave transistors

S Nouri, SM El-Ghazaly - 2021 IEEE Radio and Wireless …, 2021 - ieeexplore.ieee.org
This paper presents a novel comprehensive model for analyzing devices at the W-band and
beyond. The presented simulation scheme makes this physics-based model suitable for …

A compact outphasing power amplifier with integrated reactive compensation

W Wang, S Chen, J Cai, X Zhou… - Microwave and …, 2020 - Wiley Online Library
An innovative design methodology is presented to simplify the architecture of outphasing
power amplifier (PA). The proposed design, by absorbing transistor parasitic capacitance …

A scalable large‐signal model with self‐heating effect based on a hybrid‐scaling rule for GaN high‐electron‐mobility transistors

S Gu - … Journal of Numerical Modelling: Electronic Networks …, 2021 - Wiley Online Library
In this paper, a novel hybrid‐scaling rule for GaN high‐electron‐mobility transistors (HEMTs)
scalable large‐signal model with self‐heating effect is proposed. Due to the complex …