Results 101 to 110 of about 25,041 (293)

Compact CPW-fed Antenna with Controllable WLAN Band-rejection for Microwave Imaging

open access: yesAdvanced Electromagnetics
This work presents the design and experimental validation of a compact frequency reconfigurable coplanar waveguide (CPW)-fed ultra-wideband (UWB) antenna with a capability to on-demand reject WLAN frequencies within the range of 5.15 GHz to 5.85 GHz ...
M. Mokhtari   +3 more
doaj   +3 more sources

Equivalence of Open-Loop and Closed-Loop Operation of SAW Resonators and Delay Lines

open access: yesSensors, 2019
Surface acoustic wave (SAW) sensors in the form of two-port resonators or delay lines are widely used in various fields of application. The readout of such sensors is achieved by electronic systems operating either in an open-loop or in a closed-loop ...
Phillip Durdaut   +3 more
doaj   +1 more source

2D Magnetic and Topological Quantum Materials and Devices for Ultralow Power Spintronics

open access: yesAdvanced Functional Materials, EarlyView.
2D magnets and topological quantum materials enable ultralow‐power spintronics by combining robust magnetic order with symmetry‐protected, Berry‐curvature‐driven transport. Fundamentals of 2D anisotropy and spin‐orbit‐coupling induced band inversion are linked to scalable growth and vdW stacking.
Brahmdutta Dixit   +5 more
wiley   +1 more source

Photothermal effects in ultra-precisely stabilized tunable microcavities

open access: yes, 2016
We study the mechanical stability of a tunable high-finesse microcavity under ambient conditions and investigate light-induced effects that can both suppress and excite mechanical fluctuations.
Brachmann, Johannes F. S.   +3 more
core   +1 more source

From Wafers to Electrodes: Transferring Automatic Optical Inspection (AOI) for Multiscale Characterization of Smart Battery Manufacturing

open access: yesAdvanced Functional Materials, EarlyView.
Automat optical inspection (AOI) techniques in semiconductor fabrication can be leveraged in battery manufacturing, enabling scalable detection and analysis of electrode‐ and cell‐level imperfections through AI‐driven analytics and a digital‐twin framework.
Jianyu Li, Ertao Hu, Wei Wei, Feifei Shi
wiley   +1 more source

Strongly Enhanced Sensitivity in Planar Microwave Sensors Based on Metamaterial coupling

open access: yes, 2017
Limited sensitivity and sensing range are arguably the greatest challenges in microwave sensor design. Recent attempts to improve these properties have relied on metamaterial- (MTM-) inspired open-loop resonators (OLRs) coupled to transmission lines (TLs)
Abdolrazzaghi, Mohammad   +2 more
core   +1 more source

Compact microwave elliptic function filter usingnovelmicrostrip meander open-loop resonators

open access: yesElectronics Letters, 1996
A new type of microwave elliptic function bandpass filter using microstrip meander open-loop resonators is proposed. It is shown that the new filter structure is small and allows nonadjacent electric and magnetic couplings to be realised and adjusted. A four-pole filter of this type has, for the first time, been designed and fabricated.
J.S. Hong, M.J. Lancaster
openaire   +1 more source

Nanothermometry in Living Cells: Physical Limits, Conceptual and Material Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Heat and temperature are fundamental to life. When nanothermometers began probing regions as small as a living cell, they triggered controversial claims of large intracellular temperature gradients. We review physical constraints energy‐conservation, entropy production, thermodynamic fluctuations, and molecular dynamics.
Taras Plakhotnik
wiley   +1 more source

Waveguide photonic limiters based on topologically protected resonant modes

open access: yes, 2016
We propose a concept of chiral photonic limiters utilising topologically protected localised midgap defect states in a photonic waveguide. The chiral symmetry alleviates the effects of structural imperfections and guaranties a high level of resonant ...
Kottos, T.   +4 more
core   +3 more sources

4D‐Printed Magneto‐Plasmonic Microrobots for Programmable Spatiotemporal De‐Icing

open access: yesAdvanced Functional Materials, EarlyView.
A 4D‐printing strategy is introduced to achieve programmable de‐icing devices. By aligning gold–magnetite nanofillers within a photosensitive resin, the printed structures exhibit dual magnetic and plasmonic functionalities, enabling precise spatio‐temporal ice removal through thermoplasmonic effects.
Amélie Pérot   +7 more
wiley   +1 more source

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