A survey of Gallium Nitride HEMT for RF and high power applications

ASA Fletcher, D Nirmal - Superlattices and Microstructures, 2017 - Elsevier
This paper furnishes a Comprehensive study about an emerging GaN HEMT technology
suitable for RF and high power applications. It plays a vital role in Wireless communication …

Recent developments in materials, architectures and processing of AlGaN/GaN HEMTs for future RF and power electronic applications: A critical review

B Mounika, J Ajayan, S Bhattacharya, D Nirmal - Micro and Nanostructures, 2022 - Elsevier
This article critically reviews the architectural novelties, emerging materials (substrate,
buffer, barrier & contact materials), technological advancements, processing techniques …

Power Scaling of Graded-Channel GaN HEMTs With Mini-Field-Plate T-gate and 156 GHz fT

JS Moon, B Grabar, J Wong, D Chuong… - IEEE Electron …, 2021 - ieeexplore.ieee.org
We report 60-nm gate-length graded-channel AlGaN/GaN HEMTs fabricated with a mini-
field-plate T-gate. The devices exhibit an extrinsic f T and f MAX of 156 GHz and 308 GHz …

Flexible gallium nitride for high‐performance, strainable radio‐frequency devices

NR Glavin, KD Chabak, ER Heller, EA Moore… - Advanced …, 2017 - Wiley Online Library
Flexible gallium nitride (GaN) thin films can enable future strainable and conformal devices
for transmission of radio‐frequency (RF) signals over large distances for more efficient …

ScAlN/GaN high-electron-mobility transistors with 2.4-A/mm current density and 0.67-S/mm transconductance

AJ Green, JK Gillespie, RC Fitch… - IEEE Electron …, 2019 - ieeexplore.ieee.org
We report the dc and RF performance of ScAlN/GaN high-electron-mobility transistors
(HEMTs). The ScAlN/GaN material was epitaxially grown onto a GaN template on a 4-in 4H …

RF power performance of Sc (al, Ga) N/GaN HEMTs at Ka-band

AJ Green, N Moser, NC Miller, KJ Liddy… - IEEE Electron …, 2020 - ieeexplore.ieee.org
We report the RF power results of Sc (Al, Ga) N/GaN high electron mobility transistors
(HEMTs). We show dc, small-signal RF and load-pull performance at 30 GHz with two …

Improved RF and DC performance in AlGaN/GaN HEMT by P-type doping in GaN buffer for millimetre-wave applications

L Arivazhagan, D Nirmal, D Godfrey, J Ajayan… - … -International Journal of …, 2019 - Elsevier
In this paper, the RF and DC performance of AlGaN/GaN HEMT having p-type doping in
GaN buffer layer was analysed. Novelty of this work lies in the inclusion of P-type doping in …

A comprehensive review of AlGaN/GaNHigh electron mobility transistors: Architectures and field plate techniques for high power/high frequency applications

JSR Kumar, HV Du John, IV BinolaKJebalin… - Microelectronics …, 2023 - Elsevier
Abstract AlGaN/GaN High Electron Mobility Transistor (HEMT) frequently employs field plate
techniques to improve the device's reliability and optimum performance. This literature …

[HTML][HTML] Evaluation of linearity at 30 GHz for N-polar GaN deep recess transistors with 10.3 W/mm of output power and 47.4% PAE

B Romanczyk, M Guidry, X Zheng, P Shrestha… - Applied Physics …, 2021 - pubs.aip.org
The advantage of GaN is the capability of producing amplifiers with high output power and
efficiency. At microwave frequencies, this performance has been achieved; however, when …

Impact of Diamond Passivation on fT and fmax of mm-wave N-Polar GaN HEMTs

X Zhou, M Malakoutian, R Soman… - … on Electron Devices, 2022 - ieeexplore.ieee.org
This article presents a modeling approach and its implementation to study the impact of the
top-side diamond integration on the and performance of a millimeter-wave (mm-wave) N …