A5058007603- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Advanced Antenna and Metasurface Technologies
- Energy Harvesting in Wireless Networks
- Microwave-Assisted Synthesis and Applications
- Microwave and Dielectric Measurement Techniques
- Metamaterials and Metasurfaces Applications
- Antenna Design and Optimization
- Plasma Applications and Diagnostics
- Plasma Diagnostics and Applications
- Acoustic Wave Resonator Technologies
- Wireless Power Transfer Systems
- Full-Duplex Wireless Communications
- Gyrotron and Vacuum Electronics Research
- Electromagnetic Compatibility and Measurements
- Electromagnetic Compatibility and Noise Suppression
- Food Drying and Modeling
- Microwave Imaging and Scattering Analysis
- Advanced MIMO Systems Optimization
- Induction Heating and Inverter Technology
- Aerosol Filtration and Electrostatic Precipitation
- Geophysical Methods and Applications
- Electromagnetic Simulation and Numerical Methods
- Radio Frequency Integrated Circuit Design
- Spectroscopy and Quantum Chemical Studies
Chengdu University of Information Technology
2016-2025
Sichuan University
2016-2025
Southwest Jiaotong University
2024
Ministry of Education of the People's Republic of China
2019-2022
National Engineering Research Center of Electromagnetic Radiation Control Materials
2007-2021
Chengdu University
2016-2021
Shanghai Jiao Tong University
2020
Laboratoire Plasma et Conversion d'Energie
2013
Universität Ulm
2010
University of Electronic Science and Technology of China
1990-2005
A dual-band sensor based on a planar rectangular cavity loaded with pairs of improved resonator is used to measure the permittivity difference liquids small volume (2.5 ul). The connected by two microstrip transmission lines, constituting two-port device branches. pair interdigital capacitor (IDC)-based split ring (SRR) coupled middle part each branch. distance between IDC-SRRs large, and their coupling can be neglected. Thus, resonance frequencies are produced (4.15 GHz 9.18 GHz). One...
Abstract Graphite‐derived carbon materials have been widely used in metal‐ion batteries due to their good mechanical and electrical properties, cost effectiveness, light weight, environmental friendliness. Though natural graphite has commercially lithium‐ion batteries, the small interlayer spacing hinders its application other batteries. As such, numerous works done enhance storage capability of derivatives. In this review, structural engineering on including expanded graphite, intercalation...
We propose and demonstrate a simple, ultra sensitive radio frequency (RF) sensor to detect single yeast cell distinguish its viability in microfluidic channel. On-chip interference is used cancel background probing signals improve sensitivity. Individual viable nonviable cells (∼ 5.83 ± 0.85 μm diameter) are measured with clear sensing identification of these cells.
A compact circularly polarized (CP) rectenna based on wide-slot antenna is designed at 5.8 GHz. The feedback used for its broad band, easy-to-integrate circuitry, simple structure, and low sidelobes. receiving has a bandwidth of 31.8%. In order to minimize the profile rectenna, rectifier integrated back side substrate with matching circuit dc-pass filter. It features stable conversion efficiency three azimuthal planes. maximum 66.2% an output dc voltage 6.33 V have been measured 900 Ω load...
In this letter, a compact broadband high-efficiency RF rectifier is presented for ambient energy harvesting (EH). A novel impedance matching network with an additional quarter-wavelength short-circuited stub was designed to achieve matching. After the branch added, parallel resonance point on track S <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> did not move, and remaining points were compressed. The measurement results show that...
This letter presents an efficient dual-band rectifier using stepped impedance stub matching circuit. Theoretical analysis of the circuit comprising a is carried out, which plays key role in designing resultant rectifier. The proposed can achieve wide frequency ratio analyzed and predicted by simulation. For demonstration, working at 0.915 2.45 GHz fabricated with dimensions 21.47 mm ×18.93 mm. measured results show that 1500 Ω load, maximum efficiencies reach 74% 73% GHz, respectively. Due...
In this letter, a multioctave voltage doubler rectifier using T-type matching network is demonstrated. The topology used to flatten the load impedance, which makes it easier achieve broadband impedance matching. for input design procedure of proposed provided and discussed. For validation, prototype fabricated, performance evaluated. measured results exhibit power conversion efficiency (PCE) more than 50% over frequency band 0.2–3.2 GHz at 15 dBm 70% from 1 2.7 GHz. Moreover, peak PCE 78.2%...
Microwaves have been widely used in the treatment of materials, such as heating, drying, and sterilization. However, heating commonly microwave applicators is usually uneven. In this paper, a novel multi-material turntable structure creatively proposed to improve temperature uniformity ovens. Three customized turntables consisting polyethylene (PE) alumina, PE aluminum, alumina aluminum are, respectively, utilized domestic oven simulation. During process, processed material placed on fixed...
The ternary transitional metal oxide NiCo2O4 is a promising anode material for sodium ion batteries due to its high theoretical capacity and superior electrical conductivity. However, storage capability severely limited by the sluggish sodiation/desodiation reaction kinetics. Herein, double-shelled hollow spheres were synthesized via microwave-assisted, fast solvothermal synthetic procedure in mixture of isopropanol glycerol, followed annealing. Isopropanol played vital role precipitation...
Abstract Two‐dimensional (2D) carbon hybrids have promise in various areas such as energy storage and catalysis. Simple methods for controllable fabrication of 2D graphitic a scalable manner remains challenging. Now, microwave‐assisted strategy mass production based on self‐boosting catalytic carbonization metal–agarose framework is demonstrated. Hybrids including hollow Fe 3 C nanoparticles, Ni/Co FeO x nanoparticles uniformly embedded nanosheets (GCNs) are obtained, demonstrating the...
This paper is to point out the mistakes of previous expression power loss density electromagnetic pulse (EMP) in Debye media. We derive precise transient both from electrodynamic (ED) approach and equivalent circuit (EC) approach. In ED approach, derived energy conservative law equation. For harmonic field, reduces well-known formula. The physical meaning can be clearly explained EC consistent with that A 1-D example used show negative EMP media error temperature rise calculated expression.
In this letter, a microwave rectifier with wide input power range is presented by proposing self-tuning impedance matching (STIM). The STIM consists of varactor reversely biased the output voltage to compensate variation caused power, so that obtained over wider range. For validation, proposed at 2.4 GHz was designed and implemented. experimental results show RF-dc conversion efficiency maintains 50% 70% within ranges 2.5-25.5 dBm 11-24.5 dBm, respectively. Compared counterpart without STIM,...
In this work, a type of flexible, broadband electromagnetic microwave absorber is designed, fabricated and experimentally characterized. The composed lumped resistors loaded frequency selective surface which mounted on flexible substrate using silicone rubber in turn backed by copper film. simulated results show that an effective absorption (over 90%) bandwidth spans from 7.6 to 18.3 GHz, covers both X (8–12 GHz) Ku (12–18 bands, namely 82.6% fraction bandwidth. And the performs good...
Microwave selective/localized heating has been widely used in special areas, e.g., medical treatment and food processing, but the control of restricted space, microwave ovens, is difficult to accomplish. In this article, a Giuseppe Peano fractal phased-array antenna designed, phase each radiator derived achieve arbitrary spatial division electromagnetic field cavity based on superposition principle waves. Then, multiphysics model established by coupling heat transfer simulate directional...
A multipolarization rectenna, consisting of a two-port antenna fed by an orthogonal hybrid coupler and medium-power rectifying circuit, is proposed. The has realized good isolation (S12 or S21 <; -15 dB) between the two ports, which can be, respectively, connected to circuit and/or communication device for simultaneous wireless information power transfer (SWIPT). Due symmetry coupler, proposed rectenna work at modes, i.e., circular polarization (CP) single-port operation linear (LP)...