A5100359221- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Electromagnetic Simulation and Numerical Methods
- Metamaterials and Metasurfaces Applications
- Electromagnetic Scattering and Analysis
- Antenna Design and Optimization
- Magnetic and transport properties of perovskites and related materials
- Optical Systems and Laser Technology
- Electromagnetic Compatibility and Measurements
- Nuclear Engineering Thermal-Hydraulics
- Energy Harvesting in Wireless Networks
- Lightning and Electromagnetic Phenomena
- Advanced Condensed Matter Physics
- Nuclear reactor physics and engineering
- Advanced SAR Imaging Techniques
- Photonic and Optical Devices
- Gyrotron and Vacuum Electronics Research
- Millimeter-Wave Propagation and Modeling
- Microwave and Dielectric Measurement Techniques
- Electromagnetic Compatibility and Noise Suppression
- Conducting polymers and applications
- Advanced Measurement and Detection Methods
- Graphene research and applications
- Parallel Computing and Optimization Techniques
Xi'an Jiaotong University
2016-2025
First Affiliated Hospital of Guangdong Pharmaceutical University
2025
National University of Defense Technology
2006-2024
China University of Petroleum, Beijing
2024
Xinjiang University
2019-2024
Qingdao University
2022-2024
Chinese PLA General Hospital
2024
Xi'an Technological University
2024
Taizhou University
2024
Huazhong University of Science and Technology
2009-2024
This paper proposes a dual-band eight-antenna array for multiple-input and multiple-output (MIMO) applications in 5G mobile terminals. The designed MIMO antenna comprises eight L-shaped slot antennas based on stepped impedance resonators (SIRs). required dual-resonance can be obtained by adjusting the ratio of SIR, good matching ensured each element tuning position microstrip feed line. experimental results show that measured return loss higher than 10 dB inter-element isolation greater 11.2...
The hybrid implicit-explicit finite-difference time-domain (HIE-FDTD) scheme for a 2-D transverse electric (TE) wave is extended to full 3-D electromagnetic in this paper. With the weakly conditional stability, approach simulates shielding effectiveness of an enclosure with high computation efficiency. Numerical formulations HIE-FDTD are presented, and simulation results compared those obtained by using conventional FDTD alternating-direction implicit (ADI) methods. accuracy efficiency...
Although gold nanorods (GNRs) have been prepared with a wide range of methods for their uses as novel diagnostic and therapeutic agents, the synthesis monodispersed GNRs high yields size tunability still requires further improvements. We report on simple one-pot method preparing highly using phenols (e.g., hydroquinone, 1,2,3-trihydroxybenzene, 1,2,4-trihydroxybenzene) reducing agent NaBH4 initiating reactant. Fine-tuning LSPR peak position phenols-reduced from 550 to 1150 nm is accomplished...
Non-fullerene polymer solar cells based on a low bandgap PTB7-Th and an ultra-narrow acceptor ACS8 exhibited optimal PCE of 13.2%, indicating that the blend PTB7-Th/ACS8 has potential for practical applications PSCs.
A novel chlorine and alkylsilyl substituted polymer PBZ-ClSi was synthesized the nonhalogen solvent-processed PSCs achieved an efficiency of 12.8%.
Non-fullerene polymer solar cells based on a wide-bandgap polymer, PSBZ, exhibited PCE of up to 10.5% with high <italic>J</italic><sub>sc</sub> 19.0 mA cm<sup>−2</sup>.
In this paper, a dual circularly-polarized (CP) multi-beam antenna is proposed for future vehicular radar applications. The composed of two pillbox reflector beamforming networks (BFNs) and series-fed microstrip line based CP leaky-wave (LWA) array, which has symmetrical structure can obtain both left hand circular polarization (LHCP) right (RHCP) by switching the exciting current direction line. Besides, shorted stub loaded in LWA to suppress open-stop band (OSB), thus achieve broadside...
High-Q resonances on metasurfaces have yielded a feasible approach for nonlinear frequency conversion in recent years. In this work, we propose highly efficient metasurface based an etchless lithium niobate (LiNbO3) layer by combining periodic silicon nanodisks. These nanodisks introduce two kinds of capabilities achieving ultra-sharp spectral lineshapes owing to the high-Q bound states continuum and simultaneously attain significantly enhanced spatial field localization within LiNbO3 cavity...
This paper presents a metasurface (MS)-based wideband wearable circularly polarized (CP) antenna to communicate with in-body devices. The consists of crossed dipole, an MS plane and CP feeding network. feed network generates quasi-90° phase delay between each adjacent arm the dipole. produces radiation reduces polarization mismatch telemetry implantable antenna. consisting 5×5 unit cell array functions as reflector for dipole improve forward while maintaining low profile structure. is by...
Abstract In this paper, the hybrid implicit–explicit finite‐difference time‐domain (HIE‐FDTD) algorithm for a two‐dimensional (2D) TE wave is extended to full three‐dimensional (3D) wave. The weakly conditional stability verified by numerical simulation results. Numerical formulations of 3D HIE‐FDTD method are presented and results compared those using conventional method. High computation efficiency obtained introducing an unequal space increment in different dimensions © 2006 Wiley...
A novel weakly conditionally stable finite-difference time-domain (FDTD) method that is extremely useful for problems with very fine structures over a large computational domain in one or two directions presented. The time step this only determined by the largest space discretization. conditional stability and dispersion relation of proposed (NWCS)-FDTD are presented analytically. Compared alternating-direction implicit (ADI)-FDTD method, NWCS-FDTD has higher accuracy, especially larger...
A hybrid implicit explicit-finite-difference time-domain (HIE-FDTD) method is used to simulate a graphene-based absorber. Both the interband conductivity and intraband of graphene are incorporated into HIE-FDTD directly through an auxiliary difference equation. Because time step size in proposed not confined by fine spatial cells layer, simulation greatly reduced compared with that conventional FDTD method. By using method, absorber simulated analyzed. The numerical result shows operating...
This paper proposes a new design of dual-band reactively loaded annular slot antenna for dual-sense circular polarization radiation. Two concentric slots excited by common microstrip feedline are employed to realize operation. Each can radiate circularly polarized (CP) wave with specified sense at its one or one-and-a-half wavelength resonance, given that an appropriately valued reactive component, i.e., capacitor inductor, is introduced pre-determined location. A small frequency ratio (FR)...
Although gold nanorods (GNRs) have been investigated extensively for optical hyperthermia therapies, the synthesis of rods is far from ideal. In this report, we optimized using hydroquinone as a reducing agent. Compared with GNRs prepared by traditional ways, as-synthesized flexibly tunable size and wider range longitudinal surface plasmon resonance (LSPR). Furthermore, series small-length length ranging 30 to 90 nm were synthesized they are more suitable in vivo biomedical applications....
A dispersion hybrid implicit-explicit-finite-difference time-domain (HIE-FDTD) method is used to simulate a graphene-based polarizer in this paper. The surface conductivity of graphene incorporated into the conventional HIE-FDTD directly through an auxiliary difference equation (ADE). time step size proposed has no relation with fine spatial cells layer. simulation results show that calculated result agrees very well ADE-FDTD method, but its computational considerably reduced. By using it...
A method of improving the diversity and capacity multiple-input-multiple-output (MIMO) systems in nonisotropic multipath environments by loading a scatterer array is proposed. The difference between super-resolution imaging discussed first. phase differences caused "effective space" adjacent antenna elements are critical factors enhancement. array, which made cross-structure periodically, placed on top to adjust center radiation pattern each port. By increasing "equivalent size" correlation...