A5101650280- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Photonic and Optical Devices
- Advanced MEMS and NEMS Technologies
- Plasmonic and Surface Plasmon Research
- Energy Harvesting in Wireless Networks
- Electromagnetic Scattering and Analysis
- Electromagnetic Simulation and Numerical Methods
- Photonic Crystals and Applications
- Advanced Materials and Mechanics
- Radio Frequency Integrated Circuit Design
- Acoustic Wave Resonator Technologies
- Electromagnetic Compatibility and Measurements
- Electromagnetic Compatibility and Noise Suppression
- Orbital Angular Momentum in Optics
- Mechanical and Optical Resonators
- Full-Duplex Wireless Communications
- RFID technology advancements
- Wireless Power Transfer Systems
- Microwave and Dielectric Measurement Techniques
- Radar Systems and Signal Processing
- Lightning and Electromagnetic Phenomena
Northwest Institute of Nuclear Technology
2024
Harbin Institute of Technology
2015-2024
Anhui University
2024
First Affiliated Hospital of Xi'an Jiaotong University
2023-2024
Civil Aviation Flight University of China
2023
Harbin Engineering University
2022
Heilongjiang Institute of Technology
2006-2020
Guangdong Ocean University
2017
State Key Laboratory of Millimeter Waves
2015
Beijing National Laboratory for Molecular Sciences
2013
In this paper, ultra-thin metalenses are proposed to generate converging and non-diffractive vortex beam carrying orbital angular momentum (OAM) in microwave region. Phase changes introduced the transmission cross-polarized wave by tailoring spatial orientation of Pancharatnam-Berry phase unit cell. Based on superposition profile spiral plate that a lens or an axicon, OAM mode generated metalens can also exhibit characteristics focusing Bessel beam. Measured field intensities distributions...
Abstract Vortex beam carrying orbital angular momentum (OAM) has been widely explored in optical and microwave regions attributed to its potential characteristics communication systems. For circular polarization incidence, Pancharatnam–Berry (PB) phase is a direct resource generate gradient along the azimuthal direction required by specific OAM mode. The main drawback of PB that it only affects cross‐polarized fields keeps copolarized part unmodulated. Here, paradigm‐shift perspective...
In this paper, we propose an approach to realize substrate integrated waveguide (SIW)-based leaky-wave antennas (LWAs) supporting continuous beam scanning from backward forward above the cutoff frequency. First, through phase delay analysis, it was found that SIWs with straight transverse slots support and radiation of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$-1$</tex-math></inline-formula> -order...
In this paper, an efficient method is proposed to eliminate frequency splitting in nonradiative wireless power transfer via magnetic resonance coupling. method, two nonidentical resonant coils (NIRCs) are used as transmitter and receiver, respectively. According the elliptic integral term analytical expression, pole of mutual inductance function with respect distance can be eliminated by using NIRCs, hence overcoupling between receiver close avoided. Therefore, caused suppressed stable...
Abstract In this paper, a novel strategy based on metasurface composed of simple and compact unit cells to achieve ultra-high-speed trigonometric operations under specific input values is theoretically experimentally demonstrated. An electromagnetic wave (EM)-based optical diffractive neural network with only one hidden layer physically built perform four (sine, cosine, tangent, cotangent functions). Under the unique composite mode strategy, designed operator responds incident light source...
In this paper, a novel optical logic operator based on the multifunctional metasurface driven by all-optical diffractive neural network is reported, which can perform four principal quantum operations (Pauli-X, Pauli-Y, Pauli-Z, and Hadamard gates). The two ground states
In this letter, a novel miniaturized periodic element for constructing bandpass frequency selective surface (FSS) is proposed. Compared to previous structures, the FSS proposed has better miniaturization performance with dimension of unit cell only 0.061 λ × , where represents wavelength resonant frequency. Moreover, characteristic stable respect different polarizations and incident angles waves illuminating. Both simulation measurement are taken, results obtained demonstrate claimed performance.
This paper proposes a novel method of building electronically beam steerable antenna system using active frequency selective surfaces (AFSS). The design methods and special principals the built for this kind are studied. is fabricated experimentally investigated. front-to-back ratio more than 30 dB with null point -59 dB. gain can be promoted to 7.0 dBi. Furthermore, multi-beam functionality achieved amplitudes beams controlled.
In this paper, we propose and develop a leaky-wave antenna (LWA) by periodically loading shunt radiation element pairs along host transmission line (TL). Each pair of unit consists one capacitive inductive element, which are susceptance-complementary with each other. The complementary leads to an effective open-stopband (OSB) suppression, thereby facilitating continuous beam scanning from backward, through broadside, forward. Compared the previously studied OSB-suppressed LWAs containing...
For the iterative phase retrieval, multiple measured intensity images in output plane are only considered for accelerating convergence. The amplitude and at observed object of measurement system unknown this research. observing is composed gyrator transform, which several recorded by using transform angles same input image. An amplitude-phase retrieval scheme designed tested. numerical simulations have demonstrated that pattern within a very small error (less than 0.04 0.0005 an 8-bit...
In this letter, we propose and demonstrate a periodic leaky-wave antenna (P-LWA) by loading transverse slot pairs (TSPs) longitudinal slots (LSs) along substrate integrated waveguide. The proposed P-LWA is able to yield circularly polarized beam, which scans continuously from backward, through broadside, forward. Furthermore, it shown that large beam scanning range requires maximally coinciding radiation patterns of TSPs LSs. Hence, within the design optimization P-LWA, pattern TSP should be...
A dual-band shared aperture antenna array for phased system operated in Ku/Ka-bands is proposed this paper. By judiciously designing the geometrical structure and parameters, compact integrated elements are to achieve maximum scanning angle without grating lobes phenomenon. The patch-dipole operating Ku-band microstrip patch Ka-band designed fabricated utilizing a four-layer lamination substrate. Metal shielding vias introduced suppress coupling between different bands, meanwhile, defected...
In this letter, spoof surface plasmon polaritons (SSPPs) are developed in a slotted half-mode substrate integrated waveguide (HMSIW) to realize bandpass propagation feature instead of traditional low-pass one. We investigate the dispersion properties analyze performance an SSPP unit cell. Parametric sweepings further performed reveal direct relationships between geometry and cut-off frequencies. design compact transition by etching gradient slots on tapered microstrip-to-HMSIW transition....
The proposed work describes a corner square-cut square-patch multiple-input multiple-output (MIMO) antenna with reduced mutual coupling for circular polarization (CP). A two-port MIMO-CP was designed and operated at 5.6 GHz wireless local area network (WLAN) applications. dimensions of the were 22.5×50mm2(0.43λ0×0.933λ0) FR4 substrate height 1.6 mm. Between two-elements, edge-to-edge distance 12.2 mm (0.227 λ0), where λ0 free space wavelength GHz. slot created in middle ground MIMO to reduce...
An electrically controlled beam-scanning circularly polarized leaky-wave antenna is presented by cascading multiple unit cells of a composite right/left-handed transmission line (CRLH-TL) structure. The CRLH-TL cell consists two parts: varactor diodes (two series ones and shunt one), which enable beam steerable at fixed frequency, subwavelength (0.2 λg × 0.2 λg) square-shaped patch that perturbed to stimulate circular polarization radiation. Moreover, single-voltage bias circuit, allows all...
In this paper, a planar waveguide based on spoof surface plasmon polaritons (SSPPs) with metals both sides of the corrugated strip as grounds is firstly proposed in microwave region. Simple and efficient conversion between guided waves SSPPs realized by gradient sides. Compared plasmonic flaring ground [Laser Photonics Rev. 8, 146 (2014)], addition suppresses radiation loss effectively improves low-frequency performance tighter field confinement, which leads to wider operating bandwidth....
A design method for electrically controllable composite right/left-handed (CRLH) leaky-wave antennas (LWAs) with large beam-steering range employing liquid crystal (LC) in printed circuit board technology is proposed. It demonstrated detailed mathematical derivation that the principle enables LC-CRLH-LWA to keep balanced condition all bias states applied LC, yielding LC-CRLH-LWAs feature a steady and broadband property. Based on this principle, an prototype designed, simulated, optimized,...
The aim of this paper is to provide a specific numerical scale model with the purpose making transformations between linguistic terms and values. proposed method represents wide range existing models can quantitatively reflect behaviors DMs. pessimistic-optimistic principle based supplementary regulation for hesitant fuzzy term set (HFLTS) may lead initial information distortion losing. On basis lowest common multiple in number theory, an improved reserve fidelity original information,...