Results 71 to 80 of about 12,181 (273)

Circuit-tunable subwavelength terahertz devices

open access: yes
Dispositifs terahertz sub-longueur d'onde accordables par des composants discrets La demande croissante en composants optoélectroniques de taille réduite, rapides, de faible puissance et à faible coût oriente la recherche vers des sources et détecteurs de radiation ayant une dimension inférieure à la longueur d'onde émise/détectée ...
openaire   +2 more sources

RF tunable devices and subsystems methods of modeling, analysis, and applications: methods of modeling, analysis, and applications

open access: yes, 2015
This book serves as a hands-on guide to RF tunable devices, circuits and subsystems. An innovative method of modeling for tunable devices and networks is described, along with a new tuning algorithm, adaptive matching network control approach, and novel ...
Gu, Qizheng
core   +1 more source

Additively Manufactured Geometry‐Reconfigurable Soft Neural Probes With Monolithic Multifunctionality

open access: yesAdvanced Functional Materials, EarlyView.
A geometry‐reconfigured additive manufacturing strategy converts planar printed soft materials into soft compact neural probes with integrated hydrogel electrodes and microfluidic channels. The resulting NeuroMAP platform enables scalable multichannel recording, localized chemical delivery, stable in vivo electrophysiological recording, and reduced ...
Hyunjin Lee   +15 more
wiley   +1 more source

Development of Tunable RF Integrated Passive Devices [PDF]

open access: yes, 2017
Radio frequency (RF) lumped elements are crucial building blocks for designing any type of passives circuits for RF front-end applications in mobile devices.
Wong, Ka Wai
core  

Wide tuning-range planar filters using lumped-distributed coupled resonators [PDF]

open access: yes, 2005
This paper describes a discretely tunable filter topology based on lumped-distributed coupled transmission lines, particularly suitable for microelectromechanical systems switching devices.
Carey-Smith, BE   +8 more
core   +1 more source

Halide Composition Controls Phase Morphology and Device Specific Performance in Perovskite Photovoltaics and Light Emitting Diodes

open access: yesAdvanced Functional Materials, EarlyView.
We demonstrate that halide composition determines phase morphology, governing distinct operating mechanisms in mixed halide perovskites. Phase segregating 75% Br compositions enhance solar cell performance, whereas intrinsically phase‐separated 95% Br compositions provide stable light emitting diodes.
Tal Binyamin   +6 more
wiley   +1 more source

Medium-scale integrated circuits based on p-type 2D semiconducting MoTe2

open access: yesNature Communications
Two-dimensional (2D) semiconductors hold promise for next-generation electronics, yet the lack of scalable p-type counterparts remains a major bottleneck, with prior studies largely limited to discrete devices or simple circuits.
Hui Wang   +13 more
doaj   +1 more source

Design and analysis of a continuously linear polarization agile antenna using microwave liquid crystal technology

open access: yesEngineering Science and Technology, an International Journal
This paper presents the design and analysis of a continuously linear polarization-agile antenna based on Microwave Liquid Crystal (LC) technology. The proposed concept is specifically developed for Ku-band (e.g.
Onur Hamza Karabey
doaj   +1 more source

Tunable Resonant Structures for Photonic Integrated Circuits / [PDF]

open access: yes, 2014
Photonics is an evolving field allowing for optical devices to be made cost effectively using standard semiconductor fabrication techniques, which in turn enables integration with microelectronic chips.
Ptasinski, Joanna Nina
core  

Compact Devices for Complex Wave Monitoring for Tunable Impedance Matching Networks [PDF]

open access: yes, 2009
For the realization of tunable matching networks, different approaches based on functional materials or micromechanical devices with varying performances has been presented in the past. The dynamic control of these devices requires the measurement of the
Giere, Andre   +9 more
core   +1 more source

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