Results 101 to 110 of about 3,118 (259)

Recent Advances in Programmable Metasurfaces and Meta‐Devices

open access: yesAdvanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao   +4 more
wiley   +1 more source

Role of phase breaking processes on resonant spin transfer torque nano-oscillators

open access: yesAIP Advances, 2018
Spin transfer torque nano-oscillators (STNOs) based on magnetoresistance and spin transfer torque effects find potential applications in miniaturized wireless communication devices.
Abhishek Sharma   +2 more
doaj   +1 more source

Power Balance of Capacitive Wireless Power Transfer

open access: yes, 2019
The power balance analysis of the capacitive wireless power transfer was conducted in a general manner. The circuit model of a capacitive wireless power transfer chain was presented.
Švanda M., Kraček J.
core  

On-Site and External Energy Harvesting in Underground Wireless

open access: yes, 2020
Energy efficiency is vital for uninterrupted long-term operation of wireless underground communication nodes in the field of decision agriculture. In this paper, energy harvesting and wireless power transfer techniques are discussed with applications in ...
Usman Raza, Abdul Salam
core   +1 more source

SPICE‐Compatible Compact Modeling of Cuprate‐Based Memristors Across a Wide Temperature Range

open access: yesAdvanced Electronic Materials, EarlyView.
A physics‐guided compact model for YBCO memristors is introduced, incorporating carrier trapping, field‐induced detrapping, and a differential balance equation to describe their switching dynamics. The model is compared with experiments and implemented in LTspice, allowing realistic circuit‐level simulations.
Thomas Günkel   +6 more
wiley   +1 more source

Surface Charges Guided Quasi‐TEM‐mode Microwave Propagation along Dielectric Nanowire

open access: yesAdvanced Physics Research, EarlyView.
According to Maxwell's equations, a single‐conductor transmission line cannot allow TEM‐mode electromagnetic wave propagation, however, this is based upon the assumption that dielectric material is isolated from the environment. In practice, surface electrostatic charges widely existed in nano‐materials with large surface‐to‐volume ratio.
BoYan Xu   +7 more
wiley   +1 more source

On Self-Oscillating Wireless Power Transfer [PDF]

open access: yes, 2017
—Conventional wireless power transfer systems consist of a microwave power generator located at one place and a microwave power receiver located at a distance.
Ra’di, Younes   +3 more
core  

Coupling-Independent Wireless Power Transfer

open access: yes, 2016
It is well known that mid-range wireless power transfer can be realized by a link consisting of mutually coupled series resonant circuits operating at the common resonant frequency.
COSTANZO, ALESSANDRA   +2 more
core   +1 more source

The Influence of Substrate Size Changes on the Coil Resistance of the Wireless Power Transfer System

open access: yes, 2020
Wireless power transfer (WPT) technology has been widely used in many fields. Nevertheless, in the field of high power transmission, such as the WPT system of electric vehicles, the power transmission efficiency of WPT system lags behind that of wired ...
Jiacheng Li   +4 more
core   +1 more source

Guiding and Manipulating Light Fields in Microstructured Liquid Crystals

open access: yesAdvanced Physics Research, EarlyView.
This review summarizes recent advances in guided‐wave optics enabled by microstructured liquid crystal (LC) devices, covering their fundamental material properties, key degree of freedom for dynamic light field manipulations. The advances of linear guided‐wave optics, nonlinear‐optics with spatial optical solitons, and microlasers in LC‐based devices ...
Shan‐shan Chang   +2 more
wiley   +1 more source

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