Physical Insight Into Frequency-Dependent Nonlinearities in AlGaN/GaN HEMTs

IF 3.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Electron Devices Pub Date : 2026-04-01 Epub Date: 2026-02-24 DOI:10.1109/TED.2026.3662300

Sergio García-Sánchez;Ignacio Íñiguez-de-la-Torre;Gaudencio Paz-Martínez;Philippe Artillán;Tomás González;Javier Mateos

引用次数: 0

Abstract

We investigate the frequency-dependent nonlinearities of an AlGaN/GaN high electron mobility transistor (HEMT) involved in terahertz (THz) detection by means of 2-D Monte Carlo (MC) simulations. The analysis shows that, below 1 THz, the responsivity roll-off is mainly governed by the passive microwave behavior of the device rather than by any limitation of the intrinsic detection mechanism. At higher frequencies, an inverse extraction method able to provide the intrinsic nonlinearity coefficients of the device reveals just a marginal broad enhancement around 1 THz, followed by a steep roll-off.

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AlGaN/GaN hemt中频率相关非线性的物理洞察

我们通过二维蒙特卡罗（MC）模拟研究了参与太赫兹（THz）探测的AlGaN/GaN高电子迁移率晶体管（HEMT）的频率相关非线性。分析表明，在1太赫兹以下，器件的响应性滚降主要受器件的被动微波行为控制，而不受固有检测机制的任何限制。在更高的频率下，能够提供器件固有非线性系数的逆提取方法仅在1太赫兹左右显示出边际宽增强，随后是陡峭的滚降。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Transactions on Electron Devices 工程技术-工程：电子与电气

CiteScore

5.80

自引率

16.10%

发文量

937

审稿时长

3.8 months

期刊介绍： IEEE Transactions on Electron Devices publishes original and significant contributions relating to the theory, modeling, design, performance and reliability of electron and ion integrated circuit devices and interconnects, involving insulators, metals, organic materials, micro-plasmas, semiconductors, quantum-effect structures, vacuum devices, and emerging materials with applications in bioelectronics, biomedical electronics, computation, communications, displays, microelectromechanics, imaging, micro-actuators, nanoelectronics, optoelectronics, photovoltaics, power ICs and micro-sensors. Tutorial and review papers on these subjects are also published and occasional special issues appear to present a collection of papers which treat particular areas in more depth and breadth.