Results 51 to 60 of about 3,422 (258)

AlGaAs/InGaAs/GaAs heterostructures for pHEMT switching transistors

open access: yesTechnical Physics Letters, 2022
The pHEMT heterostructures optimized in this work to improve the parameters of switching microwave transistors have a one-sided delta-doping at 6· 1012 cm-2 and an AlAs/GaAs spacer. Such heterostructures were used to fabricate the monolithic integrated circuits of single-pole double throw pHEMT switches with gate length and width of 0.5 μm and 100
null Pashkovsky A. B.   +5 more
openaire   +1 more source

W-Band GaAs HEMT MMIC Subharmonically Pumped Diode Mixers with 20 GHz IF Bandwidth [PDF]

open access: yes, 2002
Two subharmonically pumped (SHP) diode mixers are designed for wideband W-band RF frequencies, fixed LO frequency operation. These mixers are fabricated on a 4-mil substrate using 0.1- µµµµm GaAs MMIC process.
Chu, Tah-Hsiung   +2 more
core   +1 more source

The design of a DC-30 GHz GaAs pHEMT distributed power amplifier

open access: yesDianzi Jishu Yingyong, 2018
This paper describes a distributed power amplifier(DA) which was developed using 0.25 μm GaAs pHEMT process. The process of its circuit design and optimization is presented in details. Gain flatness in the low frequency range of this DA has a significant
Liu Yanpeng, Wei Qidi, Zhang Guohao
doaj   +1 more source

Multifunction MMIC For Miniaturized Solid State Switch Matrix [PDF]

open access: yes, 2003
This paper describes a new multifunction MMIC expressly designed for a reconfiguration matrix equipment.This MMIC has been developed using a standard PHEMT process and includes two switches,a totally switchable-off amplifier and a temperature ...
Cavanna, T.   +3 more
core   +1 more source

Performance Improvement of Microwave Vector Modulator Through Coupler Characteristic Impedance Optimization and Bond-Wire Inductance Utilization

open access: yesIEEE Access, 2019
An improved technique for the design of an unbalanced analog reflection-type on-chip vector modulator is presented. At microwave frequencies, voltage-controlled high-electron-mobility transistor (HEMT) like pseudomorphic HEMT (pHEMT) is often chosen as ...
Chen Chen   +5 more
doaj   +1 more source

A 2.4-GHz Fully-Integrated GaAs pHEMT Front-End Receiver for WLAN and Bluetooth Applications

open access: yesApplied Sciences, 2022
This paper describes a 2.4-GHz fully-integrated front-end receiver including a single-pole triple-throw (SP3T) switch and a low-noise amplifier (LNA) with bypass function, which was fabricated in a 0.25 μm GaAs pHEMT process.
Ruihao Yin   +3 more
doaj   +1 more source

Gate recess engineering of pseudomorphic In0.30GaAs/GaAs HEMTs [PDF]

open access: yes, 1996
The authors report how the performance of 0.12 μm GaAs pHEMTs is improved by controlling both the gate recess width, using selective dry etching, and the gate position in the source drain gap, using electron beam lithography.
Asenov, A.   +6 more
core   +1 more source

UWB-MMIC Matrix Distributed Low Noise Amplifier

open access: yesProceedings, 2020
In this paper, a 3.1–11 GHz ultra-wideband low noise amplifier with low noise figure, high power gain S21, low reverse gain S12, and high linearity using the OMMIC ED02AH process, which employs a 0.18 μm Pseudomorphic High Electron Mobility Transistor is
Moustapha El Bakkali   +4 more
doaj   +1 more source

Imaging capability of pseudomorphic high electron mobility transistors, AlGaN/GaN, and Si micro-Hall probes for scanning Hall probe microscopy between 25 and 125°C [PDF]

open access: yes, 2009
The authors present a comparative study on imaging capabilities of three different micro-Hall probe sensors fabricated from narrow and wide band gap semiconductors for scanning hall probe microscopy at variable temperatures.
Akram, R., Dede, M., Oral, Ahmet
core   +2 more sources

A 12 GHz low noise amplifier with high-gain

open access: yesDianzi Jishu Yingyong, 2022
A two-stage low noise amplifier(LNA) with high gain and low power is proposed by analyzing the characteristics of GaAs pHEMT devices. A two-stage structure is used to increase the gain of the low noise amplifier, a shared current structure is presented ...
He Moxu, Hu Junjian, Gao Bo, He Liangjin
doaj   +1 more source

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