Results 31 to 40 of about 11,269 (214)

A Broadband Active Microwave Monolithically Integrated Circuit Balun in Graphene Technology

open access: yesApplied Sciences, 2020
This paper presents the first graphene radiofrequency (RF) monolithic integrated balun circuit. It is composed of four integrated graphene field effect transistors (GFETs).
Dalal Fadil   +10 more
doaj   +1 more source

VHF Balanced Amplifier with Lossless Feedbacks

open access: yesДоклады Белорусского государственного университета информатики и радиоэлектроники, 2022
Today’s practice of developing VHF radio systems paths widely uses MMIC as low-noise amplifiers. This approach is acceptable for radio systems operating in a relatively quiet electromagnetic environment.
I. Y. Malevich, P. V. Zayats
doaj   +1 more source

3D coplanar waveguide structures on GaAs/Si substrates for MMIC applications [PDF]

open access: yes, 2001
3D coplanar waveguide structures for MMIC applications on both Silicon and Gallium Arsenide substrates are proposed. Their performances are investigated with electromagnetic simulations and their results are compared in order to find the best possible ...
Budimir, D.   +3 more
core   +1 more source

Investigation on de-trapping mechanisms related to non-monotonic kink pattern in GaN HEMT devices

open access: yesAIP Advances, 2017
This article reports an experimental approach to analyze the kink effect phenomenon which is usually observed during the GaN high electron mobility transistor (HEMT) operation.
Chandan Sharma   +5 more
doaj   +1 more source

Electronic calibrator MMIC with frequency range up to 50 GHz for vector network analyzers in GaAs pHEMT technology [PDF]

open access: yesITM Web of Conferences, 2019
This paper presents design, simulation and measurements results of electronic calibrator with frequency range up to 50 GHz in GaAs pHEMT technology. MMIC was fabricated by using in-house 0,5 um pHEMT process.
Danilov Daniil   +3 more
doaj   +1 more source

Coupling Effects Analysis and Suppression in a Highly Integrated Ka-Band Receiver Front-End MMIC for a Passive Millimeter-Wave Imager System

open access: yesSensors, 2022
This paper presents the coupling effects analysis and suppression of a highly integrated receiver front-end MMIC for a passive millimeter-wave imager system.
Xi Chen   +4 more
doaj   +1 more source

Compact Asymmetrical Quasi-MMIC Doherty Power Amplifier [PDF]

open access: yesJournal of Electromagnetic Engineering and Science, 2023
This paper presents a compact asymmetrical Doherty power amplifier (PA) based on a quasi-MMIC configuration for 5G sub-6 GHz applications. The proposed Doherty PA is composed of commercial GaN HEMTs and several passive components implemented on a silicon
Hong-Sun Yoon   +4 more
doaj   +1 more source

An Analytical Scalable Lumped-Element Model for GaN on Si Inductors

open access: yesIEEE Access, 2020
In this paper, a wide-band distributed model that can approximate the behaviour of square and octagonal inductors, both with and without tapering, is presented.
Mario San Miguel Montesdeoca   +5 more
doaj   +1 more source

Comparative study of Au and Ni/Au gated AlGaN/GaN high electron mobility transistors

open access: yesAIP Advances, 2019
This paper presents the electrical comparison of Au and Ni/Au gated HEMT devices and diodes. Au Schottky diodes on an AlGaN/GaN heterostructure exhibit better electrical performance in comparison to conventional Ni/Au diodes with an improved Schottky ...
Ajay Kumar Visvkarma   +6 more
doaj   +1 more source

Design of X-Band GaN LNA MMIC with Switched Impedance Network for Improved Noise Figure [PDF]

open access: yesJournal of Electromagnetic Engineering and Science
In this work, an X-band gallium nitride (GaN) low-noise amplifier (LNA) monolithic microwave integrated circuit (MMIC) with a switched impedance network for improved noise performance is designed and fabricated using a 0.25 μm GaN WIN-semiconductor ...
Byeong-Uk Lee
doaj   +1 more source

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