研究目的
To propose two multiband circularly polarized antenna arrays for GNSS applications that cover GPS L1, L2, and L5 bands, with improved performance in terms of impedance matching, axial ratio, gain, and radiation patterns.
研究成果
The proposed multiband circularly polarized antenna arrays demonstrate good performance for GNSS applications, covering GPS L1, L2, and L5 bands. The use of slits on the ground plane effectively reduces mutual coupling, improving the antenna array's performance.
研究不足
The mutual coupling between antenna elements affects the axial ratio performance, especially at L2 and L5 bands. The design complexity increases with the addition of slits for reducing mutual coupling.
1：Experimental Design and Method Selection:
The design involves two antenna arrays with four elements each, utilizing three patches per element for multiband operation. Techniques like corner truncation, slot, and slit are used for circular polarization.
2：Sample Selection and Data Sources:
The antenna arrays are designed to operate at GPS L1, L2, and L5 bands.
3：List of Experimental Equipment and Materials:
Microstrip antennas with stacked patches, substrates with specific dielectric constants, and SMA connectors for feeding.
4：Experimental Procedures and Operational Workflow:
Simulation and measurement of antenna performance parameters like S11, axial ratio, gain, and radiation patterns.
5：Data Analysis Methods:
Comparison of simulated and measured results to validate the antenna arrays' performance.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
