Results 61 to 70 of about 3,422 (258)

Stability of grid amplifiers [PDF]

open access: yes, 1998
We present a stability model for quasi-optical grid amplifiers. This model is useful for predicting and suppressing the common-mode oscillations that often occur in amplifier grids. Three stabilization techniques will be discussed.
De Lisio, Michael P.   +3 more
core   +2 more sources

A novel topology for a HEMT negative current mirror [PDF]

open access: yes, 2000
A new solution for the implementation of a HEMT negative current source is presented. The topology can be also profitably employed as a current mirror and as an active load in high-gain MMICs voltage amplifiers.
Centurelli, F.   +4 more
core   +1 more source

An X/Ku Dual-Band Switch-Free Reconfigurable GaAs LNA MMIC Based on Coupled Line

open access: yesIEEE Access, 2020
This article presents an X/Ku dual-band switch-free reconfigurable GaAs low-noise amplifier (LNA) realized by inter-stage and output-stage coupled lines.
Chunshuang Xie, Zhongjun Yu, Cheng Tan
doaj   +1 more source

Improvement of phemt intermodulation prediction through the accurate modelling of low-frequency dispersion effects [PDF]

open access: yes, 2005
Large-signal dynamic modelling of III-V FETs cannot be simply based on de i/v characteristics, when accurate performance prediction is needed. In fact, dispersive phenomena due to self-heating and/or traps (surface state densities and deep level ...
Filicori, F.   +7 more
core   +1 more source

Hotspot Estimation for Antenna-Less Backscatter Communication Using Excited Impedance Analysis [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
This paper proposes a novel method for determining the optimal mounting position of nonlinear components for antenna-less backscatter communication using ground (GND) plane patterns on printed circuit boards (PCB).
Junwoo Cha   +2 more
doaj   +1 more source

The Design and Thermal Reliability Analysis of a High-Efficiency K-Band MMIC Medium-Power Amplifier with Multiharmonic Matching

open access: yesActive and Passive Electronic Components, 2016
A new high-efficiency K-band MMIC medium-power amplifier (PA) is designed with multiharmonic matching using GaAs pHEMT process technology. It has an operation frequency centered at 26 GHz with a bandwidth of 2 GHz.
Y. Shang   +9 more
doaj   +1 more source

Miniature Multi-Band Absorptive Bandstop Filter Designs Using Bridged-T Coils

open access: yesIEEE Access, 2018
In this paper, miniature absorptive bandstop filters (ABSFs) with one to three stopbands are demonstrated. First, the proposed single-band ABSF is realized by the introduction of one lossy resonator to a conventional stub bandstop filter, while the ...
En-Wei Chang, Yo-Shen Lin
doaj   +1 more source

A scalable 3–15 GHz 256‐element active phased array for ultra‐wideband multi‐functional RF sensor systems

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
The design and experimental validation of an ultra‐wideband 256‐element active phased array operating across the 3–15 GHz frequency range is proposed in this letter. These findings highlight the potential of the array for multifunctional sensor applications on resource‐constrained platforms such as spaceborne and airborne systems, with stringent size ...
Daqun Yu   +3 more
wiley   +1 more source

А COMPARISON OF THE DIFFERENT GAAS PHEMT LOGIC FAMILIES CHARACTERISTICS

open access: yesDynamics of Systems, Mechanisms and Machines, 2021
В данной статье представлено сравнение основных характеристик базовых логических вентилей, спроектированных по GaAs pHEMT технологии. Сравнение проведено для шести типов логических схем. Сравнение показало, что использование резисторов с высоким удельным сопротивлением позволяет уменьшить площадь в 1,6 раза и потребляемую мощность в 5 раз для базового ...
D. V. Bilevich   +4 more
openaire   +1 more source

Dual-Band Power Amplifier Design at 28/38 GHz for 5G New Radio Applications

open access: yesIEEE Access, 2022
This paper presents the design of a dual-band power amplifier (PA) featuring similar performance at 28 GHz and 38 GHz. In the new radio (NR) of the fifth generation (5G) communication system, the inter-band carrier aggregation technique is commonly ...
Yi-Fan Tsao   +3 more
doaj   +1 more source

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