研究目的
To design a 2D metal photonic crystal structure with a rectangular lattice for directed wave propagation in the microwave frequency band and investigate the influence of the number of metal rods on the antenna directionality.
研究成果
The design of the metal photonic crystal improves the effective utilization of radiation power and makes the antenna get better directionality. It can be used for long-distance mobile communication. The antenna located in the center of the array can get good directionality at 3.1 GHz.
研究不足
The study is limited to the microwave frequency band and does not explore the application of the designed structure in other frequency ranges. The experimental measurement results show some differences from the simulation results, indicating potential areas for optimization.
1：Experimental Design and Method Selection:
The study involves designing a 2D metal photonic crystal structure with a rectangular lattice for directed wave propagation in the microwave frequency band. The dispersion curve of EPC is computed for designing the directed period array.
2：Sample Selection and Data Sources:
The study uses a rectangular period array, different from the reference that is designed in optical range and uses the dielectric rods and hexagonal structure to compose the period array.
3：List of Experimental Equipment and Materials:
The study involves the use of metal rods to form the periodic structure.
4：Experimental Procedures and Operational Workflow:
The computed dispersion curves are combined with the theory of finite thick period array for obtaining the directed wave propagation structure. The influence of the number of metal rods on the antenna directionality is investigated.
5：Data Analysis Methods:
The simulation results are compared and analyzed to understand the effect of the number of metal rods on the antenna directionality.
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