Results 91 to 100 of about 227,325 (292)

Microwave Discharge Ion Sources

open access: yes, 2014
This chapter describes the basic principles, design features and characteristics of microwave discharge ion sources. A suitable source for the production of intense beams for high-power accelerators must satisfy the requirements of high brightness ...
Celona, L.
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

Design of Ka-band thin film power divider based on multi-line gap coupling

open access: yesDianzi Jishu Yingyong
The traditional power divider structure is difficult to meet the requirements of high frequency and miniaturization of microwave systems due to obvious high-frequency crosstalk and large volume of impedance conversion lines.
Xu Muhua   +5 more
doaj   +1 more source

Theoretical and Experimental Investigations of Collective Microwave Phenomena in Solids Semiannual Status Report, 1 Apr. - 30 Sep. 1966 [PDF]

open access: yes
Theory and experiments in microwave propagation and amplification using solid state devices, and calculations of electronic deflection of laser ...
Chodorow, M.
core   +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

Switchable Magnonic Crystals Based on Spin Crossover/CrSBr Heterostructures

open access: yesAdvanced Materials, EarlyView.
Multiscale modeling is employed to investigate the functionality of a light‐controlled, tunable magnonic crystal based on spin‐crossover Fe‐pz molecules integrated with a monolayer of CrSBr. Ab initio simulations confirm that the molecules remain functional on the CrSBr surface, while a semiclassical elastic model demonstrates that light‐induced ...
Andrei Shumilin   +4 more
wiley   +1 more source

Application of multilevel modeling methods in the design of radio-frequency devices of radio-engineering systems

open access: yesФизика волновых процессов и радиотехнические системы, 2017
In this paper, we propose a generalized algorithm for hierarchical multi-level modeling of radio-frequency devices of radio-engineering systems, which allows modeling methods to optimize the principle of radio-frequency devices constructing and its ...
V.A. Kozlov, M.M. Ivoylova
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

Direct extraction techniques of microwave small-signal model and technological parameters for sub-quarter micron SOI MOSFETs

open access: yesJournal of Telecommunications and Information Technology, 2000
Original extraction techniques of microwave small-signal model and technological parameters for SOI MOSFETs are presented. The characterization method combines careful design of probing and calibration structures, rigorous in situ calibration and a ...
Michel Goffioul   +2 more
doaj   +1 more source

Backbone Engineering of Carbon‐Centered NHC‐Derived Diradicals: From Electronic State Tuning to High‐Performance Organic Field‐Effect Transistors

open access: yesAdvanced Materials, EarlyView.
The open‐shell nature of diradicals facilitates charge separation, and compounds with moderate diradical character demonstrate remarkable potential in organic field‐effect transistors (OFET) applications due to their low reorganization energies for hole and electron transport.
Xiao‐Xu Liu   +7 more
wiley   +1 more source

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