研究目的
To propose a novel wideband polarization reconfigurable slot antenna with high realized gain that can change the polarization mode in limited space, contributing to polarization diversity, frequency reuse, and polarization modulation.
研究成果
The proposed antenna achieves a wideband performance with high realized gain, making it suitable for modern wireless and satellite communication systems.
研究不足
The available bandwidth in most of the reported polarization reconfigurable antennas is narrower than 10%, especially for circularly polarized 3-dB axial-ratio bandwidth.
1：Experimental Design and Method Selection:
The antenna design is based on a quasi-cross-shaped coupling slot with a Wilkinson power divider network to achieve polarization reconfiguration.
2：Sample Selection and Data Sources:
The antenna is designed on a
3：508-mm thick Rogers RT5880 substrate. List of Experimental Equipment and Materials:
Includes Rogers RT5880 substrate, PIN diodes, and a Wilkinson power divider network.
4：Experimental Procedures and Operational Workflow:
The design involves etching a quasi-cross-shaped coupling slot on the ground, placing U-shaped folded feed lines, and using a reconfigurable Wilkinson power divider network with PIN diodes to alter the current flow path.
5：Data Analysis Methods:
The performance is evaluated based on S-parameters, axial ratio, radiation pattern, realized gain, and efficiency.
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