Results 121 to 130 of about 66,270 (345)
Innovative Autonomous Design of Multi-Band Reconfigurable Antenna Using Genetic Algorithms
IEEE AccessThis paper presents a novel approach to designing reconfigurable antenna using genetic algorithms (GAs) and accurate PIN diode modeling. The method integrates TRL calibration for precise diode characterization, equivalent circuit modeling, and a multi ...
Mohammed Cherif Derbal, Mourad Nedil
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Substrate and Passivation Techniques for Flexible Amorphous Silicon-Based X-ray Detectors
Sensors, 2016 Flexible active matrix display technology has been adapted to create new flexible photo-sensing electronic devices, including flexible X-ray detectors.
Michael A. Marrs, Gregory B. Raupp
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Carrier dynamics and coherent acoustic phonons in nitride heterostructures
, 2006 We model generation and propagation of coherent acoustic phonons in piezoelectric InGaN/GaN multi-quantum wells embedded in a \textit{pin} diode structure and compute the time resolved reflectivity signal in simulated pump-probe experiments. Carriers are
C. J. Stanton +8 more
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Advanced Science, EarlyView.A high‐quality solution‐processed Sb2(S,Se)3/CdS heterojunction is designed to overcome the intrinsic limitations of conventional photodetectors. The fabricated device achieves an excellent self‐powered performance, including a high responsivity of 0.6 A W−1, an ultrahigh specific detectivity of 7.68 × 1012 Jones, and a wide 3db bandwidth of 175 kHz ...
Xuhua Xiao +6 more
wiley +1 more source
Flame detector operable in presence of proton radiation [PDF]
, 1974 A detector of ultraviolet radiation for operation in a space vehicle which orbits through high intensity radiation areas is described. Two identical ultraviolet sensor tubes are mounted within a shield which limits to acceptable levels the amount of ...
Cornish, S. D. +3 more
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A split-cavity design for the incorporation of a DC bias in a 3D microwave cavity
, 2017 We report on a technique for applying a DC bias in a 3D microwave cavity. We achieve this by isolating the two halves of the cavity with a dielectric and directly using them as DC electrodes.
Beukers, Ewout +5 more
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120 GHz 2-bit reflection-type phase shifter based on PIN diodes switched-lines. [PDF]
, 2023 DAVID OUATTARA +6 more
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Current‐Driven Nonreciprocal Response of Nonequilibrium Skyrmions
Advanced Science, EarlyView.A skyrmion holds great promise for spintronic applications owing to its intrinsic topological stability and high mobility under ultra‐low current excitation. Here, by means of in situ electron microscopy, we demonstrate a skyrmion diode effect and the associated current‐driven nonreciprocal skyrmion dynamics in a designed FeGe‐based microdevice.
Xiuzhen Yu +10 more
wiley +1 more source
Design of a New Radio-Frequency Switch Topology with Very Low Polarization Current [PDF]
Radioengineering, 2019 Embedded systems are generally powered by batteries, characterized by a limited duration of electrical energy storage. For that, low power consuming RF components are often used.
F. Mejri, T. Aguili
doaj
Backscatter Transponder Based on Frequency Selective Surface for FMCW Radar Applications [PDF]
, 2014 This paper describes an actively-controlled frequency selective surface (FSS) to implement a backscatter transponder. The FSS is composed by dipoles loaded with switching PIN diodes. The transponder exploits the change in the radar cross section (RCS) of
Girbau, D. +3 more
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