A5103004749- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Metamaterials and Metasurfaces Applications
- Antenna Design and Optimization
- Advanced Materials and Mechanics
- UAV Applications and Optimization
- Head and Neck Surgical Oncology
- Electromagnetic Scattering and Analysis
- Microwave Engineering and Waveguides
University of Electronic Science and Technology of China
2021-2024
Nanjing University of Aeronautics and Astronautics
2019
An ultrathin dual polarization Huygens' element (HE) is proposed based on a novel degeneracy method for electric and magnetic resonance modes. This HE exhibits wider operation bandwidth higher transmittance than the other hole-free dual-polarization lens antenna (LA) elements of similar thickness. By arranging three pairs bilayer-dipole-pairs (BDPs) in parallel, achieves modes at same frequency. In addition, mutual coupling between effectively eliminated by implementing reverse translation...
method for designing broadband dual-polarization thin aperture with a small focal length to diameter ratio ( <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">F</i> / xmlns:xlink="http://www.w3.org/1999/xlink">D</i> ) is proposed low-profile transmitarray antenna (TA). The composed of two types narrowband subwavelength unit cells, namely the wire-loop Huygens' cell and stacked I-shaped cross cell. cells collaborate achieve complete 360° phase...
This paper proposes a dual-feed wide-beam circularly polarized antenna unit, and forms 2×8 planar phased array to realize one-dimensional wide-angle scanning. The unit is composed of single-layer radiation patch quadrifilar helical structure around it. can widen the beam width. works at 3.31-3.45GHz, axial ratio in working frequency band less than 3dB, its size 0.35λ0×0.35λ0×0.12λ0. elements ±60° circular polarization scanning maintain good performance.
ABSTRACT The present study introduces a low‐profile beam‐steering metasurface lens antenna (MLA) that is excited by defocused array (DAA), eliminating the need for amplitude and phase excitation modulation. First, we modify an ultrathin Huygens' unit cell to provide greater angular stability, which intended use in antennas. Subsequently, analyze effect of focal–diameter ratio ( F / D ) on performance lens. Further, one‐dimensional (1D) MLA equipped with DAA modeled. Based this model,...
In this paper, a two-dimensional electronically controlled scanning phased array antenna based on liquid crystal material is introduced. The structure consists of <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$2\times 2$</tex> microstrip patch array, continuously variable helical folded delay line phase shifter, RF feed and bias network. suspended stripline power divider, ground coplanar waveguide-suspended transition broadband are studied...
In this paper, Huygens metasurface is used to enhance the gain of an H-plane scanning phased array antenna. The meta-atom realized by a pair complementary rings with centrosymmetric structure and axisymmetric T-shape stubs, which are orthogonal each other. designed as <tex>$1\times 4$</tex> circular patch linear array. With meta-lens loaded above array, fan beam radiated converted into pencil beam, thus E-plane improved. Fullwave simulation results show that peak increased from 11.2dBi...