Results 91 to 100 of about 3,422 (258)

High-breakdown AlGaAs/InGaAs/GaAs PHEMT with telluriumdoping

open access: yesElectronics Letters, 1995
The authors report the fabrication and characterisation of an Al/sub 0.43/Ga/sub 0.57/As/In/sub 0.2/Ga/sub 0.8/As/GaAs pseudomorphic HEMT (PHEMT) with high channel conductivity grown by solid source MBE. The high conductivity of the channel is a direct consequence of the high sheet charge and high mobility that has recently been obtained by using ...
N.X. Nguyen   +3 more
openaire   +1 more source

Upgrade of the Cold Electronics of the ATLAS HEC Calorimeter for sLHC [PDF]

open access: yes, 2009
The signal amplification and summation electronics of the ATLAS Hadronic End-cap Calorimeter (HEC) is operated at the circumference of the HEC calorimeters inside the cryostats in liquid argon.
Dannheim, D   +7 more
core   +1 more source

Temperature effects of low noise InGaP/InGaAs/GaAs PHEMTs [PDF]

open access: yesSolid-State Electronics, 2003
Abstract The temperature-dependent DC characteristics and noise performance of In 0.49 Ga 0.51 P/In 0.15 Ga 0.85 As/GaAs low noise pseudomorphic high electron mobility transistors (PHEMTs) with the gate dimensions of 0.25 × 160 μm 2 are investigated at 12 GHz with temperature ranging from 300 to 450 K.
H.K. Huang   +4 more
openaire   +1 more source

An Ultra-Wideband Digitally Programmable Power Amplifier with Efficiency Enhancement for Cellular and Emerging Wireless Communication Standards [PDF]

open access: yes, 2016
The design and measurements of a fabricated novel digitally programmable wideband power amplifier (PA) are presented. The PA is made suitable for use in all communication standards, including GSM, 3G, LTE and Femto-cells, offering a bandwidth of several ...
Albasha, Lutfi   +7 more
core   +3 more sources

Precise Characterization and Multiobjective Optimization of Low Noise Amplifiers [PDF]

open access: yes, 2015
Although practically all function blocks of the satellite navigation receivers are realized using the CMOS digital integrated circuits, it is appropriate to create a separate low noise antenna preamplifier based on a low noise pHEMT. Such an RF front end
Cerny, D.   +7 more
core   +2 more sources

Thermo-mechanical analysis of GaAs devices under temperature-humidity-bias testing

open access: yes, 2015
International audienceAccelerated life tests on microelectronic devices are needed to estimate their degradation under severe environment. THB (Temperature Humidity Bias) [1] at 85°C and 85%RH (relative humidity) is commonly used for reliability studies.
Adokanou, Kokou   +4 more
core   +3 more sources

Smart Power Devices and ICs Using GaAs and Wide and Extreme Bandgap Semiconductors [PDF]

open access: yes, 2017
We evaluate and compare the performance and potential of GaAs and of wide and extreme bandgap semiconductors (SiC, GaN, Ga2O3, diamond), relative to silicon, for power electronics applications.
Chow T. Paul   +4 more
core   +2 more sources

High Linearity Millimeter Wave Power Amplifiers with Novel Linearizer Techniques [PDF]

open access: yes, 2008
Millimeter-wave communications have experienced phenomenal growth in recent years when limited frequency spectrum is occupied by the ever-developing communication services.
Bai, Dafu, Bai, Dafu
core   +2 more sources

GaAs pHEMT Cascode Low Noise Amplifier for Wireless Applications [PDF]

open access: yesInternational Journal of Computer and Electrical Engineering, 2009
104 Abstract—This paper presents low noise amplifier (LNA) for wireless application which has been implemented in a 0.15μm GaAs pHEMT technology. The LNA was designed using cascode topology with feedback techniques which produces better gain and good stability over entire frequency.
Arjuna Marzuki   +8 more
openaire   +1 more source

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