Results 61 to 70 of about 2,123,471 (302)

Double-walled carbon nanotube-based polymer composites for electromagnetic protection. [PDF]

open access: yes, 2010
In this paper, we present a microwave absorber based on carbon nanotubes (CNT) dispersed inside a BenzoCycloButenw (BCB) polymer. The high aspect ratio and remarkable conductive characteristics of CNT give rise to good absorbing properties for ...
Flahaut, Emmanuel   +7 more
core   +1 more source

Double resolution microwave holography [PDF]

open access: yes, 1976
Includes bibliographical references.This thesis endeavours to record the development and subsequent evaluation of a simple technique for the recording of microwave holograms using common hardware components, which offers the possibility of significant ...
Nilsen, Christopher Shakespeare
core   +1 more source

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Pulsed Laser‐Assisted Phase Engineering of Multimetallic Colloidal Nanocrystals With Complex Compositions

open access: yesAdvanced Materials, EarlyView.
The engineering of colloidal nanocrystals with complex compositions has emerged as a highly active area of research within nanomaterials science. This review covers key aspects of colloidal solid‐solution nanocrystal formation using pulsed laser irradiation.
Marina T. Candela   +4 more
wiley   +1 more source

Generation of optical microwave signals using laser diodes with enhanced modulation response for hybrid radio/fiber systems [PDF]

open access: yes, 2001
The authors present the idea of using a laser with improved modulation bandwidth to generate microwave optical signals for hybrid radio/fibre systems. External light injection has been used to enhance the frequency response of the laser and thus greatly ...
Anandarajah, Prince M.   +5 more
core   +2 more sources

Applications of Graphene at Microwave Frequencies [PDF]

open access: yesRadioengineering, 2015
In view to the epochal scenarios that nanotechnology discloses, nano-electronics has the potential to introduce a paradigm shift in electronic systems design similar to that of the transition from vacuum tubes to semiconductor devices.
M. Bozzi, L. Pierantoni, S. Bellucci
doaj  

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Alloying‐Controlled Tuning of Interfacial Spin‐Orbit Interaction and Magnetic Damping in Crystalline FeCo Thin Films Grown on GaAs(001)

open access: yesAdvanced Materials, EarlyView.
The interfacial spin‐orbit interaction in single‐crystalline Fe1−xCox thin films grown on GaAs(001) can be continuously tuned via alloying. Using spin‐orbit ferromagnetic resonance, the authors find that the interfacial spin‐orbit fields exhibit a nonmonotonic dependence on Co concentration, with a minimum at 20% Co. ABSTRACT The discovery of intrinsic
Hongrui Lao   +9 more
wiley   +1 more source

When self-consistency makes a difference [PDF]

open access: yes, 2008
Compound semiconductor power RF and microwave device modeling requires, in many cases, the use of selfconsistent electrothermal equivalent circuits.
Bonani, Fabrizio   +5 more
core   +1 more source

Potential applications of microstrip devices with traveling wave resonators [PDF]

open access: yesТехнологія та конструювання в електронній апаратурі, 2013
The shortcomings of the known microwave filters in microstrip lines are considered, the advantages of the use of directional traveling-wave filters in microstrip performance and examples of their potential applications are shown.
E. N. Glushechenko
doaj   +1 more source

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