研究目的
Investigating bandwidth improvement of cylindrical dielectric resonator antenna (CDRA) using a modified microstrip feed structure.
研究成果
The proposed aperture-coupled CDRA with a modified microstrip feed line achieves a significant improvement in 10 dB impedance bandwidth, making it suitable for applications in radar, satellite communication, and wireless computer networks.
研究不足
The study is limited to simulation results without physical prototype testing. Potential areas for optimization include further bandwidth enhancement and reduction of cross-polarization levels.
1：Experimental Design and Method Selection:
The study involves designing an aperture-coupled CDRA with a modified microstrip feed structure to enhance bandwidth.
2：Sample Selection and Data Sources:
The CDRA is made of alumina material (Al2O3) with specific dimensions and positioned on an FR4 substrate.
3：List of Experimental Equipment and Materials:
Alumina dielectric resonator, FR4 substrate, microstrip feedline, and a circular patch.
4：Experimental Procedures and Operational Workflow:
The antenna's performance is simulated using Ansoft HFSS software, focusing on reflection coefficient and radiation pattern.
5：Data Analysis Methods:
The analysis includes comparing the impedance bandwidth and radiation patterns before and after modifying the feed structure.
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