A5025321618- Antenna Design and Analysis
- Microwave Engineering and Waveguides
- Antenna Design and Optimization
- Energy Harvesting in Wireless Networks
- Advanced Antenna and Metasurface Technologies
- Bluetooth and Wireless Communication Technologies
- Radio Astronomy Observations and Technology
- Wireless Body Area Networks
- Metamaterials and Metasurfaces Applications
Hunan University
2022-2025
In this paper, a low-profile dual-band circularly polarized (CP) antenna with wide axial ratio beam (ARBW) for vehicle Beidou Navigation System (BDS) satellite tracking is proposed and analyzed. The mainly consists of top PCB orthogonal slots dual strip slots, bottom microstrip feed lines. There an air layer between the two PCBs, line feeds patch on through coupling. With help produces right-hand circular polarization (RHCP) in BDS L1 (1575.42±32.736 MHz) B2 (1176.45±20.46 bands. An...
With the continuous development of Beidou navigation system, demand for terminal antennas is also increasing. This paper introduces a compact microstrip patch antenna working in B2 frequency band. The bandwidth broadened by means probe coupling feeding and loading parasitic patches. proposed has profile 4.6 mm (0.018 $\lambda_{0}$), occupies an area 80 $\times 80$ (0.31$\lambda_{0} (\times 0.31) \lambda_{0}$). simulated impedance with $\vert \mathrm{S}11 \vert \lt -10$ dB 7.7%, respectively....
This Aiming at the problem that radar cross section (RCS) of traditional slot antenna array is too large, a new type proposed uses polarization conversion metasurface (PCM) to reduce and maintain radiation characteristics array. The wideband RCS reduction achieved without compromising performance. PCM placed on upper surface functions as an reduction. performance loaded with analyzed. impedance bandwidth 9.06-10.72 GHz, relative 16.6%. Under impact normal direction plane wave in wide...
In order to miniaturize antenna size and realize circular polarization characteristic, according the relationship between frequency length of patch, this letter validates a compact polarized microstrip by introducing high dielectric constant substrate (ε <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</inf> =16), truncated opposite corners an X-shape slot on patch. Through experimental tests, comparison similar works, it has proved that...
In order to widen the 3dB beam width of traditional microstrip antenna and improve its narrowband shortcomings, this paper proposes a new type broadband based on antenna. The proposed creatively introduces cavity while increasing thickness dielectric substrate, uses feeding method probe feeding. size is 10mm$\times$ 10.82mm. Based element, it simulated calculated. simulation results show that working frequency range 14.012GHz $\sim$ 16.660GHz, relative bandwidth reaches 17.65%, 201.4°, gain...