Review of RF Device Behavior Model: Measurement Techniques, Applications, and Challenges

H Li, J Su, R Wang, Z Liu, M Xu - Micromachines, 2023 - mdpi.com
This review presents a concise overview of RF (radio frequency) power transistor behavior
models, which is crucial for optimizing RF performance in high-frequency applications like …

Microwave and Millimeter-Wave GaN HEMTs: Impact of Epitaxial Structure on Short-Channel Effects, Electron Trap**, and Reliability

E Zanoni, C De Santi, Z Gao, M Buffolo… - … on Electron Devices, 2023 - ieeexplore.ieee.org
Application of gallium nitride high-electron-mobility transistors (GaN HEMTs) to millimeter-
wave power amplifiers requires gate length scaling below 150 nm: in order to control short …

Trap** dynamics in GaN HEMTs for millimeter-wave applications: Measurement-based characterization and technology comparison

AM Angelotti, GP Gibiino, C Florian, A Santarelli - Electronics, 2021 - mdpi.com
Charge trap** effects represent a major challenge in the performance evaluation and the
measurement-based compact modeling of modern short-gate-length (ie,≤ 0.15 μm) Gallium …

Experimental characterization of charge trap** dynamics in 100-nm AlN/GaN/AlGaN-on-Si HEMTs by wideband transient measurements

AM Angelotti, GP Gibiino, A Santarelli… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
This article deals with the characterization of charge trap** dynamics in a novel 100-nm
double-heterojunction AlN/GaN/AlGaN-on-Si radio frequency (RF) HEMT process. In order …

Broadband error vector magnitude characterization of a GaN power amplifier using a vector network analyzer

AM Angelotti, GP Gibiino, C Florian… - 2020 IEEE/MTT-S …, 2020 - ieeexplore.ieee.org
This work investigates the impact of nonlinear dynamic effects due to charge trap** and
other long-memory phenomena on the wideband linearity of power amplifiers (PAs) for 5G …

Error vector magnitude measurement for power amplifiers under wideband load impedance mismatch: System-level analysis and VNA-based implementation

GP Gibiino, AM Angelotti, A Santarelli, PA Traverso - Measurement, 2022 - Elsevier
Abstract The Error Vector Magnitude (EVM) is a fundamental metric used in communications
to quantify the wideband distortion generated by a non-linear device subject to modulated …

On the impact of buffer and GaN-channel thickness on current dispersion for GaN-on-Si RF/mmWave devices

V Putcha, L Cheng, A Alian, M Zhao… - 2021 IEEE …, 2021 - ieeexplore.ieee.org
The GaN-on-Si technology for the upcoming RF/6G/mm-Wave applications requires a robust
buffer design for enhanced device performance and improved reliability. The defect states …

A Reconfigurable Setup for the On-Wafer Characterization of the Dynamic RON of 600 V GaN Switches at Variable Operating Regimes

A Alemanno, AM Angelotti, GP Gibiino, A Santarelli… - Electronics, 2023 - mdpi.com
Charge-trap** mechanisms observed in high-voltage GaN switches are responsible for
the degradation of power converter efficiency due to modulation of the effective dynamic ON …

A study on the optimized ohmic contact process of AlGaN/GaN-Si MIS-HEMTs

H Guan, G Shen, B Gao, H Zhang, Y Wang… - IEEE Access, 2021 - ieeexplore.ieee.org
AlGaN/GaN-Si based MIS-HEMTs are considered as the popular candidates for application
in the 5G communication system due to their competitive characteristics and low cost. Ohmic …

Optical, Structural, and Synchrotron X-ray Absorption Studies for GaN Thin Films Grown on Si by Molecular Beam Epitaxy

ZC Feng, J Liu, D **e, MT Nafisa, C Zhang, L Wan… - Materials, 2024 - mdpi.com
GaN on Si plays an important role in the integration and promotion of GaN-based widegap
materials with Si-based integrated circuits (IC) technology. A series of GaN film materials …