A5100783887- Antenna Design and Analysis
- Advanced Antenna and Metasurface Technologies
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Metamaterials and Metasurfaces Applications
- Energy Harvesting in Wireless Networks
- Millimeter-Wave Propagation and Modeling
- Plant Reproductive Biology
- Direction-of-Arrival Estimation Techniques
- Tree Root and Stability Studies
- Advanced Adaptive Filtering Techniques
- Plant Surface Properties and Treatments
- Structural Analysis and Optimization
China Academy of Space Technology
2018-2025
Foshan University
2023
Xidian University
2012-2016
A magnetoelectric (ME) dipole filtering antenna with high out-of-band suppression level and selectivity is proposed in this letter. The intrinsic radiation null of the traditional ME used, which produces a good response at edge lower passsband. pair vertical parasitic metal planes are introduced between shorted walls fed through slot coupling, can be equivalent to an additional magnetic dipole. radiated electric field opposite that original higher frequency, forming wide stopband null,...
ABSTRACT A dual‐band multiple‐input‐multiple‐output (MIMO) antenna covering 2.2–2.7GHz and 4.9–5.9 GHz frequency bands for wireless local area network (WLAN) application is presented. The proposed consists of two C‐shaped monopole elements a decoupling structure. structure based on new printed bent T‐shaped resonator which embedded between the to obtain high isolation in WLAN bands. MIMO has compact size 40 × mm 2 (0.32 λ 0 0.32 ) prototype fabricated measured. measured results with show...
In the letter, a new frequency offset generation method based on polynomial fitting is proposed. The can be obtained by sampling fitted curve. By adjusting coefficients of polynomial, different forms generated. Different from existing window-based diverse arrays (FDAs), which adopt traditional window functions to generate and suffer high sidelobe levels (SLLs) low range resolution, performance Poly-FDA more flexibly regulated curves. Moreover, particle swarm optimization (PSO) algorithm...
An omnidirectional antenna is presented. It composed of dipole array. This operates at 2.4 GHz for WLAN. As the radiation element, has a minimized height reducing size antenna. Its 27mm high and 75mm length. Four dipoles that encircle metal cylinder radial direction form an element. Along axial there are three elements with distance 101mm. The gain this 7.1 dBi variation in azimuth plane less than 0.5dB.
ABSTRACT A compact omni‐directional circularly polarized (CP) antenna is presented. The proposed CP consists of a centrally fed circular patch and four curved branches which are printed on two substrates the connected by metal pins. center acts as monopole employed current loop enabling radiates waves in azimuth plane. designed at 2.4 GHz for WLAN application with size 0.34λ0 × 0.08λ0 (where λ0 wavelength free space). To verify design, fabricated measured. measured results show that this...
A folded reconfigurable reflectarray antenna for mono-pulse radar application is presented in this paper. The proposed combines the properties of reflect-array and antenna. with 15×15 elements developed to verify design method. calculated simulated using MATLAB HFSS, detailed results are discussed. can operate at Ku-band provide performance beam scanning. This has significant potential satellite applications, due its low profile, simple control beam-scanning capability.
In this paper, a hybrid differential evolution and weight total least squares method (HDE-WTLSM) is proposed for antenna array pattern synthesis. A variable diagonal matrix introduced in method. Then, the optimized by (DE) algorithm to control differences of desired level obtained different directions. This combines advantages evolutionary numerical algorithm, so it has wider application range faster convergence speed. To compare HDE-WTLSM with DE typical algorithms, these methods are...
A reconfigurable polarization conversion meta-surface (PCM) is proposed, which can reflect the linear (LP) wave into orthogonal LP or with same polarization. In mode, proposed Re-PCM operate over 4.5GHz∼5.5GHz maintaining <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$\Gamma \text{xx}$</tex> less than - 15dB. reflection acts as a metal reflector.
A broadband polarization rotation reflective surface (PRRS) is designed and applied to wideband radar cross section (RCS) reduction in this paper. The PRRS can convert linearly polarized incident wave with orthogonal polarization, a high conversion ratio (PCR) be achieved across broad band. When the arranged chessboard configuration placed around microstrip patch, monostatic RCS of patch reduced 8dB from 6.9GHz 14.9GHz. performance principle are also analysed.
This paper introduces a design of Ku-band reconfigurable reflectarray element. The element consists four metallic layers and PIN diodes integrated in the patches on top layer. biasing network is designed to control voltages applied pin diodes. Based on-off diodes, states 00, 01, 10, 11 are designed, produces 4 distinct phase responses 0, π/2, π, 3π/2 form 2-bit quantization. average insertion loss less than 1.5dB. has shift effect low at 12GHz, which can be antenna.
A reconfigurable linear-to-circular PCM is proposed based on PIN diodes, which can convert LP incident EM wave into CP reflection wave. The AR of better than 3dB over the band 4.52GHz~5.61GHz. Simulated results validate design concept and indicate that exhibits good LP-to-CP ability. may be applied in polarization-manipulation reflector.