Results 101 to 110 of about 3,422 (258)

Local self-heating in short gate GaAs PHEMTs

open access: yes, 1996
Self heating in ultrashort gate length GaAs Pseudomorphic High Electron Mobility Transistors (PHEMT) is investigated. The experimental results include an original measurement of the average temperature in the gate drain area of the device channel. An original model which accounts for both bidimensional heat transfer and quasi bidimensional energy ...
Aniel, F.   +5 more
openaire   +2 more sources

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 of cryogenic 700 MHz HEMT amplifier [PDF]

open access: yes, 2004
We present a way to design a high-frequency low-temperature pHEMT-based balanced amplifier. The design is based on measured cryogenic S-parameters combined with a small-signal noise model.
Hakonen, Pertti J., Roschier, Leif
core   +1 more source

Accurate pHEMT nonlinear modeling in the presence of low-frequency dispersive effects [PDF]

open access: yes, 2005
Low-frequency (LF) dispersive phenomena due to device self-heating and/or the presence of "traps" (i.e., surface state densities and bulk spurious energy levels) must be taken into account in the large-signal dynamic modeling of III-V field-effect ...
Filicori, Fabio   +7 more
core   +1 more source

Effects of deep levels on transconductance dispersion in AlGaAs/InGaAs pseudomorphic high electron mobility transistor [PDF]

open access: yes, 2014
The effects of deep levels on the transconductance dispersion in an AlGaAs/InGaAs pseudomorphic high electron mobility transistor was interpreted using capacitance deep level transient spectroscopy (DLTS).
Choi, Kyoung Jin, Lee, JL, Yoo, HM
core   +1 more source

Enhancing the Accuracy of Microwave Element Models by Artificial Neural Networks [PDF]

open access: yes, 2004
In the recent PSpice programs, five types of the GaAs FET model have been implemented. However, some of them are too sophisticated and therefore very difficult to measure and identify afterwards, especially the realistic model of Parker and Skellern.
Dobes, J., Pospisil, L.
core   +1 more source

Global modeling approach to the design of an MMIC amplifier using Ohmic Electrode-Sharing Technology [PDF]

open access: yes, 2003
An innovative technique for high--density, high-frequency integrated circuit design is proposed.The procedure exploits the potentialities of a global modeling approach,previously applied only at device level,enabling the circuit designer to explore ...
Cidronali, A.   +4 more
core   +1 more source

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

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