Results 51 to 60 of about 3,422 (258)
AlGaAs/InGaAs/GaAs heterostructures for pHEMT switching transistors
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]
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
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]
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
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
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]
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
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]
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
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

