Results 51 to 60 of about 2,026,776 (294)

Spin Dynamics in the van der Waals Ferromagnet CrTe2 Engineered by Niobium Doping

Advanced Functional Materials, EarlyView.
Spin‐dynamic magnetic properties of van der Waals (vdW) ferromagnet 1T‐CrTe2 are tuned via niobium (Nb) as Cr1‐xNbxTe2 (x = 0–0.2). Nb doping enables wide‐band tuning of the resonance frequency from 40 GHz down to the few‐GHz regime, accompanied by a moderate increase in the Gilbert damping from ∼0.066 to ∼0.14.
Dhan Raj Lawati, Prem Bahadur Karki, Jitender Kumar, Karishma Prasad, Mohamed A. Elekhtiar, Kai Huang, Bibek Tiwari, Suvechhya Lamichhane, Rupak Timalsina, Zane Hubble, Ayodimeji E. Aregbesola, John Watt, Sy‐Hwang Liou, Evgeny Y. Tsymbal, Jian Wang, Kapildeb Ambal, Abdelghani Laraoui   +16 more
wiley   +1 more source

Design of an ultrashort H‐plane coupler without transition structure for sheet beam traveling‐wave tube amplifier at W‐band

Electronics Letters, 2023
An ultrashort H‐plane sheet beam traveling‐wave tube (SB‐TWT) coupler without transition structure is proposed. The coupler adopts a new idea of directly coupling the microwave from H‐plane of the slow‐wave circuit (SWC) and optimizes the matching by ...
Zheng Guo, Changqing Zhang, Jun Cai, Jinjun Feng   +3 more
doaj   +1 more source

Microwave MEMS Devices Designed for Process Robustness and Operational Reliability [PDF]

, 2011
This paper presents an overview on novel microwave micro-electromechanical systems (MEMS) device concepts developed in our research group during the last 5 years, which are specifically designed for addressing some fundamental problems for reliable ...
Somjit, Nutapong,, Shah, Umer, Shah, Umer,, Räisäinen, Antti,, Sterner, Mikael,, Chicherin, Dmitry, Oberhammer, Joachim,, Sergey Dudorov, Antti Räisänen, Räisäinen, Antti, Chicherin, Dmitry,, Mikael Sterner, Umer Shah, Dudorov, Sergey,, Oberhammer, Joachim, Dmitry Chicherin, Sterner, Mikael, Dudorov, Sergey, Nutapong Somjit, Somjit, Nutapong, Joachim Oberhammer   +20 more
core   +1 more source

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

Advanced Functional Materials, EarlyView.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu, Daniel Álvarez Sánchez‐Bayuela, Gianluigi Tiberi, Eliana Canicattì, Agostino Monorchio, Ester Vázquez   +5 more
wiley   +1 more source

High-speed and broadband $$\upmu$$ μ TP-heterogeneously integrated InGaAs/GaAsSb photodetectors for next-generation optical interconnects

PhotoniX
As communication rates continue to increase and wavelength-division multiplexing (WDM) becomes ubiquitous, the conventional fiber-optic O and C bands no longer suffice.
Yan Liang, Yuxuan Wang, Faran Chang, Guanyu Li, Wenguang Zhou, Xiangbin Su, Xiaochen Li, Dongwei Jiang, Donghai Wu, Guowei Wang, Guang Qian, Yingqiang Xu, Zhichuan Niu, Youdou Zheng, Yi Shi   +14 more
doaj   +1 more source

Effects of [Zn_0.5Si_0.5]³⁺ Substitution on Microwave Dielectric Properties of ZnAl_2-x(Zn_0.5Si_0.5)_xO₄ Ceramics

Crystals
Microwave dielectric ceramics are indispensable in modern communication technologies, playing a pivotal role in components such as filters, oscillators, and antennas.
Xuekai Lan, Bairui Chen, Huatao Tang, Changzhi Yin, Bin Tian, Wen Lei   +5 more
doaj   +1 more source

A compact differential branch‐line coupler using folded substrate integrated suspended parallel strip line

Electronics Letters, 2023
This letter presents a compact fully differential branch‐line coupler. It is composed of folded substrate integrated suspended parallel strip line (SISPSL), which can generate slow‐wave effect and help reduce the circuit size.
Huajiao Shen, Yongqiang Wang, Fanyi Meng, Kaixue Ma   +3 more
doaj   +1 more source

Hierarchical Physical-Cyber Encryption via Metasurface-Encoded Holographic Keys. [PDF]

Adv Sci (Weinh)
ABSTRACT Physical‐layer encryption based on metasurfaces has emerged as a promising alternative to conventional algorithmic cryptography by embedding security into physical processes. However, most existing metasurface‐based encryption schemes operate within single‐stage or static frameworks, where correct physical illumination directly reveals the ...
Liu Z, Dai C, Zhu W, Yang R, Zhang B, Zhang L, Du B, Wang S, Hu G.   +8 more
europepmc   +2 more sources

Testing of a dual-mode microwave care regimen for hydrogel lenses [PDF]

, 2004
Purpose. To test the design of a patient care regimen for soft lenses that aims to provide the highest standards of disinfecting through use of domestic microwave cookers, while also providing storage equipment and solution that enable patients to follow
Crabbe, A, Thompson, P
core  

Microwave Radiation

, 2015
Microwave radiation is a form of electromagnetic radiation. It covers, broadly speaking, frequencies between 300 MHz and 300 GHz. For example a microwave oven operates at a frequency of 2.45 GHz and many mobile network providers use frequencies between ...
Marinakis, S, Howard, B
core   +1 more source