A5004877997- Metamaterials and Metasurfaces Applications
- Advanced Antenna and Metasurface Technologies
- Electromagnetic wave absorption materials
- Antenna Design and Analysis
- Medical Imaging Techniques and Applications
- Economics of Agriculture and Food Markets
- Microfluidic and Bio-sensing Technologies
- Advanced X-ray and CT Imaging
- Micro and Nano Robotics
- Color Science and Applications
- Numerical methods in inverse problems
- Characterization and Applications of Magnetic Nanoparticles
- Agricultural Innovations and Practices
- Photonic Crystals and Applications
- Photochromic and Fluorescence Chemistry
Wuhan University of Technology
2014-2021
Materials Science & Engineering
2021
State Key Laboratory of Advanced Technology For Materials Synthesis and Processing
2014
It is a tough task to greatly improve the working bandwidth for traditional flat microwave absorbers because of restriction available material parameters. In this work, simple patterning method proposed drastically broaden absorption conventional magnetic absorber. As demonstration, an ultra-broadband absorber with more than 90% in frequency range 4–40 GHz designed and experimentally realized, which has thin thickness 3.7 mm light weight equivalent 2-mm-thick such patterned absorber,...
Optically transparent metamaterial microwave absorbers (MMAs) developed so far unexceptionally encounter an intrinsic contradiction between extending the absorption bandwidth and improving optical transparency, hindering their practical applications. This work, in its experiment calculation, demonstrates MMA with both broadband excellent transparency by standing‐up closed‐ring resonators (CRRs) indium tin oxide backed Plexiglas board. The as‐designed shows a strong of 85% covering wide...
Broadening the bandwidth of electromagnetic wave absorbers has greatly challenged material scientists. Here, we propose a two-layer hybrid absorber consisting non-planar metamaterial (MM) and magnetic microwave absorbing (MAM). The MM using MAMs instead dielectric substrates shows good low frequency absorption reflection across broad spectrum. Benefiting from this high strong MAM layer, lightweight exhibits 90% absorptivity over whole 2–18 GHz range. Our result reveals promising flexible...
The brightness and hue of structural colors can be independently, continuously, reversibly tuned in an aqueous suspension containing Fe<sub>3</sub>O<sub>4</sub>@poly(<italic>N</italic>-isopropyl acrylamide) flexible photonic nanochains by changing the magnetic field temperature.
An in-plane hybrid design is proposed to achieve broadband radar cross section (RCS) reduction based on the integration of a diffusion scattering electromagnetic band-gap (EBG) metasurface and magnetic absorbing material (MAM) at thin thickness (d). A field calculation formula derived for design, in which MAM EBG have complementary dominant working bands. Moreover, they are able strong RCS broad band by together. As result, as-designed show both simulation experiment an unprecedented 6 dB...
A band-splicing strategy is proposed to greatly extend the tunable bandwidth of metamaterial absorbers (MMAs) based on circular split-rings (CSRs) containing varactors. In this strategy, CSRs are split into multiple segments with absorption frequency continuously in a pre-set range by adjusting varactors that bridged PIN diodes, enabling splicing separately bands diodes On/Off. By optimizing parameters and following circuit model, designed MMA experimentally demonstrated significantly...
All-in-one material for microrocket propulsion featuring acid-based bubble generation and magnetic guidance is presented. Electrochemically deposited iron serves as both a propellant, toward highly efficient self-propulsion in acidic environments, component enabling complete motion control. The new microrockets display longer lifetime higher efficiency compared to previously reported active metal zinc-based due the chemical properties of unique structure microrockets. These iron-based also...
A quaternionic metasurface consisting of two pairs units with destructive phase difference is proposed to extend the bandwidth radar cross section (RCS) reduction. The are designed have complementary phase-different bandwidth, which extends RCS overlaps their enhance reduction, resulting in a having broadband and strong This design wideband reduction were verified by analytical calculation superposition principle electric field, numerical simulation commercial software package CST Microwave...
It is a significant and challenging work to develop broadband microwave absorption spanning low high frequency. Efficient combination of conventional absorbers (CMAs) emerging metamaterial (MMAs) viable solution yet lack success. This paper reveals redundant substitutable part in the substrate an MMA by analyzing its field distribution, hereby proposes inhomogeneous absorber (ISMA) substituting with CMA. The ISMA integrates strong at frequency CMA An substrate-based circuit model which are...
Maize and soybean are important grain oil crops in China. Being the first crop China, maize is feed raw materials for industrial uses, while constitutes major animal protein feed. Hence, both essential strategic agricultural products related to people’s livelihood worldwide. This paper mainly analyzed changes production, consumption, trade price of applied CAMES model predict trends next decade (2024-2033) based on certain hypotheses economic social conditions production conditions....