Results 91 to 100 of about 231,200 (296)
Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions
Advanced Functional Materials, EarlyView.Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan +8 more
wiley +1 more source
Power amplifier/low noise amplifier RF switch
Electronics Letters, 2000 Front-end RF switches commonly use PIN diodes as the switching element. A novel RF switch using the existing front-end power amplifier and low noise amplifier to give better performance with reduced component count and lower cost is demonstrated.
Tze Kiu Lee, Wing Shing Chan, T.Y.M. Siu
openaire +1 more source
High Resolution Flicker-Noise-Free Frequency Measurements of Weak Microwave Signals
, 2011 Amplification is usually necessary when measuring the frequency instability of microwave signals. In this work, we develop a flicker noise free frequency measurement system based on a common or shared amplifier.
Creedon, Daniel L. +3 more
core +1 more source
Advanced Functional Materials, EarlyView.Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He +5 more
wiley +1 more source
Ultra-Wideband Low-Noise Amplifier
Physics Procedia, 2012 AbstractUltra-Wideband (UWB) Low-Noise Amplifier (LNA) is an essential part of the digital TV and UWB signal processor, but what makes it hard to design is the comprehensive consideration of bandwidth, noise and gain control performance. A new solution of high performance amplifier with low-noise, UWB and direct current (DC) is presented (Fig.1), which
Lei, Kaizhuo +4 more
openaire +1 more source
Support assembly for cryogenically coolable low-noise choke waveguide [PDF]
, 1980 A compact cryogenically coolable choked waveguide for low-noise input coupling into a cryogenically cooled device, such as a maser or parametric amplifier, utilizes coaxial stainless steel support tubes surrounding the waveguide and connected in cascade ...
Mccrea, F. E.
core +1 more source
Imaging of Biphoton States: Fundamentals and Applications
Advanced Functional Materials, EarlyView.Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley +1 more source
LNA A 1.9 GHZ low noise amplifier
Ingeniería Investigación y Desarrollo, 2006 This paper shows the design, the simulation, and the layout from a low noise amplifier (LNA), designed with and approximate band from 25 to 80 MHz. The design results of the matching neworks are shown, its noise figure, its available and transduced gain ...
Jorge Julián Moreno-Rubio +1 more
doaj
Graphene microwave transistors on sapphire substrates
, 2011 We have developed metal-oxide graphene field-effect transistors (MOGFETs) on sapphire substrates working at microwave frequencies. For monolayers, we obtain a transit frequency up to ~ 80 GHz for a gate length of 200 nm, and a power gain maximum ...
A. C. Betz +10 more
core +1 more source
Advanced Functional Materials, EarlyView.This study introduces VIVID (Vesicle In Vivo Identification using DNA), a qPCR‐based platform that tracks PCR‐amplifiable DNA tags loaded in the EVs for accurate and quantifiable EV biodistribution in vivo. ABSTRACT Extracellular vesicles (EVs) represent promising carriers for nucleic acid therapeutics, offering advantages over synthetic nanoparticles ...
Oscar Boyadjian +5 more
wiley +1 more source