A5021886498- Advanced Antenna and Metasurface Technologies
- Antenna Design and Analysis
- Metamaterials and Metasurfaces Applications
- Silicon and Solar Cell Technologies
- Microwave Engineering and Waveguides
- Supply Chain and Inventory Management
- Prosthetics and Rehabilitation Robotics
- Energy, Environment, and Transportation Policies
- Integrated Circuits and Semiconductor Failure Analysis
- Muscle activation and electromyography studies
- Antenna Design and Optimization
- Advanced optical system design
- Advanced Surface Polishing Techniques
- Mechanical Circulatory Support Devices
- Optical Coatings and Gratings
- Photonic and Optical Devices
- Sustainable Supply Chain Management
University of South China
2025
Nanjing University of Science and Technology
2024
Nanjing University
2023
Tsinghua University
2012-2013
State Key Laboratory of Tribology
2012
This paper presents an electrical powered transfemoral prosthesis. The knee joint is actuated by a motor-driven ball screw assembly and the ankle motioned series elastic actuator. An undirectional spring attached paralleled with SEA to store energy during dorsiflexion bias load of torque. To mimic biomechanical gait data make prosthesis compact anthropomorphic, some key parameters are calculated achieve optimal solution. These include length crank rocker joint, stiffness parallel dimension...
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In this study, a highly flexible metal–ink hybrid metasurface that can be integrated with planar structures is proposed. The achieves wideband absorption performance while maintaining an efficient transmission window. Based on equivalent circuit model analysis, aperture-coupled antenna array was the metasurface, enabling simultaneous radar cross-section (RCS) reduction and high-performance radiation. integration of allowed overall structure to maintain low profile. Simulation results show...
Metasurfaces enable flexible and effective control over electromagnetic waves. To achieve low scattering of the antenna, this paper proposes a multifunctional metasurface with frequency-selective absorbing properties. The structure consists lossy layer lossless layer, where is composed metallic square ring lumped resistor, an improved Jerusalem cross gap structure. proposed exhibits 90% absorption rate within frequency range 9.76GHz-25.65GHz, relative bandwidth 89.7% insertion loss 1.02dB at 5.73GHz.
This paper proposed a low radar cross-section (RCS) microstrip antenna array based on the absorptive/transmissive frequency selective surface (ATFSS). The ATFSS structure consists of lossy metasurface and band-pass metasurface, which are seprated by dielectric spacer. simulation results show that can achieve reflectivities below -10 dB from 2.07 GHz to 7.52 insertion loss is 1 4.44 5 GHz. Then, 4×4 was designed covered ATFSS. After combining with ATFSS, it gain 21 dBi around 4.6 GH RCS 2.3 7.4