Results 11 to 20 of about 1,276,832 (305)

From Magnetic Fibers to Paper Architectures: A Lightweight Strategy for Robust Low-Frequency Microwave Absorption. [PDF]

open access: yesAdv Sci (Weinh)
A scalable process converts para‐aramid fibers into soft‐magnetic building blocks via micrometer‐thick Fe0.64Ni0.36 (Invar‐type) coatings. Assembled into paper, they form a hierarchical conductive network whose tunable permeability enables thin, lightweight microwave absorption in the low‐frequency (S‐band) regime.
Wu Y   +7 more
europepmc   +2 more sources

Wood Carbon Sponge/SiO<sub>2</sub> Aerogel Composites with Anisotropic Broadband Microwave Absorption, Elastic Resilience, and Thermal Insulation. [PDF]

open access: yesAdv Sci (Weinh)
Anisotropic wood carbon sponge/SiO2 aerogel composites are constructed, revealing a robust direction‐dependent permittivity ordering (tangential > radial > axial). The radial direction delivers an ultra‐broadband effective absorption bandwidth of 11.6 GHz at only 4.95 mm, while the tangential direction offers superior compressibility and thermal ...
Sun S   +7 more
europepmc   +2 more sources

Controllable synthesis and enhanced microwave absorption properties of hexagonal boron nitride@polyaniline composite

open access: yesJournal of Materials Research and Technology, 2023
Nowadays, electromagnetic pollution caused by electronic devices is gradually becoming a concern. Moreover, as the frequency of electromagnetic pollution from electronic devices is mainly in the range of 2–10 GHz, the design of microwave-absorbing ...
Yufeng Bai   +4 more
doaj   +1 more source

Research progress in carbon-based/carbonyl iron composite microwave absorption materials

open access: yesCailiao gongcheng, 2019
Carbon-based/carbonyl iron composite microwave absorption materials have become a hot topic in recent years because of the combination of their respective advantages and unique physical and chemical characteristic and good absorbing properties.
GE Chao-qun, WANG Liu-ying, LIU Gu
doaj   +1 more source

The microwave absorption properties of soft magnetic materials in frequency up to 40 GHz

open access: yesAIP Advances, 2023
With the continuous development of communication technology, the microwave frequency used has been extended to 24∼30 GHz or even higher. Thus, for the research on microwave absorption materials, the commonly used 2∼18 GHz frequency range might no longer ...
Yuankang Wang   +11 more
doaj   +1 more source

New thermocouple-based microwave/millimeter-wave power sensor MMIC techniques in GaAs [PDF]

open access: yes, 2010
We describe a new RF and microwave power sensor monolithic microwave integrated circuit design. The circuit incorporates a number of advances over existing designs.
Steve Cochran   +11 more
core   +1 more source

Research Progress of High Temperature Microwave Absorption Materials

open access: yesJournal of Aeronautical Materials, 2018
High temperature microwave absorption material is significantly important to improve the viability of advanced weapon and equipment. This paper summarizes the research progress of high temperature microwave absorption materials.
LIANG Caiyun, WANG Zhijiang
doaj   +1 more source

Dispersive Fourier Transformation for Versatile Microwave Photonics Applications [PDF]

open access: yes, 2014
: Dispersive Fourier transformation (DFT) maps the broadband spectrum of an ultrashort optical pulse into a time stretched waveform with its intensity profile mirroring the spectrum using chromatic dispersion.
Wang, Chao, Chao Wang
core   +1 more source

Uniformly coating MnOx nanoflakes onto carbon nanofibers as lightweight and wideband microwave absorbers with frequency-selective absorption

open access: yesMaterials & Design, 2019
Microwave absorption materials have drawn significant attention due to their potential application in information safety and military stealth. In this work, we report a facile strategy to synthesize carbon nanofiber/MnOx core-shell composites (CNF@MnOx ...
Xuefei Xu   +5 more
doaj   +1 more source

Microwave absorption of aluminum/hydrogen treated titanium dioxide nanoparticles

open access: yesJournal of Materiomics, 2019
Interactions between incident electromagnetic energy and matter are of critical importance for numerous civil and military applications such as photocatalysis, solar cells, optics, radar detection, communications, information processing and transport et ...
Michael Green   +6 more
doaj   +1 more source

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