Results 131 to 140 of about 1,959,593 (353)

Microwave Monitoring by Compact Carbon Nanotube Photo‐Thermoelectric Sensors Beyond the Diffraction Limit Toward Ultrabroadband Non‐Destructive Inspections

open access: yesAdvanced Sensor Research, EarlyView.
This work overcomes long‐standing crucial technical difficulties in miniaturizing micro‐wave detectors, caused by the longer‐wavelength diffraction limit, with carbon nanotube (CNT) film photo‐thermoelectric sensors. The CNT film sensor exhibits sensitive micro‐wave detection operations with signal‐to‐noise ratios over 1400 at compact device sizes ...
Qi Zhang   +11 more
wiley   +1 more source

High‐Entropy Alloys and Oxides as Supercapacitor Electrodes: A Structural and Electrochemical Perspective for Energy Storage

open access: yesAdvanced Sustainable Systems, EarlyView.
This study compares the electrochemical performance of high‐entropy alloys (HEA) and oxides (HEO) as supercapacitor electrodes. HEO demonstrates superior energy and power density due to its capacitive behavior and surface redox reactions, while HEA relies on diffusion‐controlled processes.
Öyküm Başgöz   +3 more
wiley   +1 more source

280–300 GHz SiGe‐InP hybrid‐integrated transmitter with 21.9 dBm EIRP and 10 Gbps data rate

open access: yesIET Microwaves, Antennas & Propagation
In this paper, a 280–300 GHz hybrid‐integrated transmitter is proposed. The advantages of the SiGe and InP chips are fully made use by integrating these two chips. For low cost and high integration, the local oscillator chain and mixer are based on chips
Haiyan Lu   +14 more
doaj   +1 more source

Computational modeling of decay and hybridization in superconducting circuits [PDF]

open access: yesarXiv, 2018
We present a framework for modeling superconducting circuits that integrates classical microwave analysis with circuit quantization. Our framework enables the calculation of the lossy eigenmodes of superconducting circuits, and we demonstrate the method by analyzing several circuits relevant to multiplexed, Purcell filtered transmon readout ...
arxiv  

Large‐Area Conductor‐Loaded PDMS Flexible Composites for Wireless and Chipless Electromagnetic Multiplexed Temperature Sensors

open access: yesAdvanced Science, EarlyView.
This work demonstrates the first chipless temperature sensing array based on conductor‐loaded composites. They allow multiple items to be simultaneously identified and monitored through multiplexed electromagnetic reflections. The work studies the influence of conductive fillers on the frequency‐domain properties of PDMS, for the first time.
Benjamin King   +2 more
wiley   +1 more source

Revealing the Origin and Nature of the Buried Metal‐Substrate Interface Layer in Ta/Sapphire Superconducting Films

open access: yesAdvanced Science, EarlyView.
The origin and nature of metal‐substrate interface layer in Ta/sapphire‐based superconducting films is investigated using synchrotron X‐ray reflectivity and scanning transmission electron microscopy. An intermixing layer, ≈0.65 nm thick containing Al, O, and Ta atoms, is identified at the interface.
Aswin k. Anbalagan   +16 more
wiley   +1 more source

Gain-assisted superluminal microwave pulse propagation via four-wave mixing in superconducting phase quantum circuits [PDF]

open access: yesarXiv, 2015
We study the propagation and amplification of a microwave field in a four-level cascade quantum system which is realized in a superconducting phase quantum circuit. It is shown that by increasing the microwave pump tones feeding the system, the normal dispersion switches to the anomalous and the gain-assisted superluminal microwave propagation is ...
arxiv  

Using genetic algorithms for harmonic-balance analysis of nonlinear microwave circuits [PDF]

open access: bronze, 2000
Stavros Iezekiel, M. Alexandrakis
openalex   +1 more source

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