Results 111 to 120 of about 2,410 (220)

GaAs pHEMT class-E power amplifier design

open access: yes, 2021
Yüksek güçlü RF kuvvetlendiciler mikrodalga sistemlerde genelde verici katında antenden önce yer alır. Bu tür kuvvetlendiricilerin tasarımlarında yüksek frekans elektroniğinin tasarım ilkelerine ek doğrusal olmayan tasarım tekniklerinin de kullanılmak zorundadır.Bir RF güç kuvvetlendiricisi aktif elemana ek olarak giriş ve çıkış katından oluşur.
openaire   +1 more source

Thermal Memory Effects on the Linearity of a GaAs PHEMT

open access: yes, 2004
This paper presents a comprehensive treatment of the nonlinear electro-thermal memory effect arising in a GaAs PHEMT. In particular is demonstrated the way with which the pure nonlinear electrical effect and the electro-thermal one combine and in turn determine a dispersive third-order intermodulation.
Accillaro, C.   +8 more
openaire   +3 more sources

A general neuro-space mapping technique for microwave device modeling

open access: yesEURASIP Journal on Wireless Communications and Networking, 2018
Accurate modeling of nonlinear microwave devices is critical for reliable design of microwave circuit and system. In this paper, a more general neuro-space mapping (Neuro-SM) method is proposed to fulfill the needs of the increased modeling complexity ...
Lin Zhu   +6 more
doaj   +1 more source

The High-Electron Mobility Transistor at 30: Impressive Accomplishments and Exciting Prospects [PDF]

open access: yes, 2011
2010 marked the 30th anniversary of the High-Electron Mobility Transistor (HEMT). The HEMT represented a triumph for the, at the time, relatively new concept of bandgap engineering and nascent molecular beam epitaxy technology.
del Alamo, Jesus A.
core   +1 more source

Terahertz responsivity of field-effect transistors under arbitrary biasing conditions [PDF]

open access: yes, 2013
Current biased photoresponse model of long channel field-effect transistor (FET) detectors is introduced to describe the low frequency behavior in complex circuit environment.
Földesy, Péter
core   +1 more source

Design of an X-band high efficiency continuous-mode power amplifier

open access: yesDianzi Jishu Yingyong
To improve the bandwidth and efficiency of power amplifier, a monolithically integrated X-band high-efficiency continuous B/J power amplifier is designed based on the 0.25 μm GaAs pseudomorphic high electron mobility transistor (pHEMT) process ...
Liu Hanxiao   +3 more
doaj   +1 more source

Microelectromechanical Systems (MEMS) Resistive Heaters as Circuit Protection Devices [PDF]

open access: yes, 2013
With increased opportunities for the exploitation (i.e., reverse engineering) of vulnerable electronic components and systems, circuit protection has become a critical issue.
Coutu, Ronald A., Jr., Ostrow, Scott A.
core   +1 more source

Design Methodology of an Inductorless GaAs pHEMT SPDT Switch With Compact Size for Sub-6 GHz Applications

open access: yesIEEE Access
This paper presents an inductorless design methodology for compact single-pole double-throw (SPDT) switches in Sub-6 GHz applications. To achieve compactness and meet key performance metrics below 5.0 GHz, the methodology focuses on optimizing the trade ...
Jaehyun Kwon   +3 more
doaj   +1 more source

A 20–40 GHz Harmonic Rejection Enhanced Frequency Doubler in 150 nm GaAs p-HEMT

open access: yesIEEE Access
This paper presents a broadband monolithic microwave integrated circuit (MMIC) frequency doubler within a 20-40GHz frequency operation range in a $0.15\mu $ m GaAs p-HEMT process.
Fengyun Chen   +3 more
doaj   +1 more source

Восстановление нелинейной модели GaAs pHEMT СВЧ-транзистора

open access: yesДоклады Томского государственного университета систем управления и радиоэлектроники, 2010
Представлены результаты восстановления нелинейной модели ПТШ с шириной затвора 600 мкм, выполненного по GaAs pHEMT-технологии ЗАО «НПФ Микран». Восстановление проводилось на основе результатов измерений малосигнальных параметров рассеяния и вольт-амперных характеристик, выполненных в непрерывном режиме.
openaire   +1 more source

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