研究目的
Investigating the design and performance of multi-band cylindrical dielectric resonator antennas (CDRAs) with permittivity variation in the azimuth direction for potential WLAN applications.
研究成果
The proposed dual- and triple-band CDRAs with permittivity variation in the azimuth direction demonstrate good performance and are suitable for WLAN applications. The operating bands can be adjusted by design parameters, and the antennas show stable radiation characteristics. Future studies could explore further optimization and application in other wireless communication systems.
研究不足
Fabrication imperfections such as sector fitting and machining of microwave laminates may lead to mismatches between simulated and measured results. The complexity of the structure makes it difficult to control individual resonance and bandwidth with a single parameter.
1：Experimental Design and Method Selection:
The study involves designing dual-band and triple-band CDRAs with permittivity variation in the azimuth direction, using coaxial probe feeding. Theoretical models and simulations are performed using Ansoft HFSS.
2：Sample Selection and Data Sources:
Commercially available microwave laminates (FR4, Rogers RT/Duroid 6010 and 6006) are used for fabricating the antennas.
3：List of Experimental Equipment and Materials:
Abrasive Water Jet & Cutting Machine (OMAX 2652) for machining, coaxial probe for feeding, and various dielectric materials with different permittivities.
4：Experimental Procedures and Operational Workflow:
Fabrication of antennas using selected materials, simulation of input reflection coefficient and radiation patterns, and measurement of fabricated antennas' performance.
5：Data Analysis Methods:
Comparison of simulated and measured results to validate the design, including input reflection coefficient, radiation pattern, and antenna gain.
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