研究目的
Investigating the viability of using additive manufacturing for horn antennas fed with empty substrate integrated waveguide to maintain low cost while increasing directivity.
研究成果
The study demonstrates the feasibility of using additive manufacturing for horn antennas fed with empty substrate integrated waveguides. The pyramidal horn antenna manufactured with ABS and copper lacquering provided better agreement between simulation and measurements, indicating that this method is more suitable for practical applications. The exponential horn antenna showed acceptable performance despite manufacturing challenges.
研究不足
The surface roughness and tolerances in the dimensions of the manufactured prototypes, especially the exponential horn antenna, affect the accuracy of measurements. The disagreement between simulation and measurements is likely due to these manufacturing imperfections.
1：Experimental Design and Method Selection:
The study involves designing two types of horn antennas (pyramidal and exponential) fed with empty substrate integrated waveguide (ESIW) and evaluating their performance through simulation and physical prototyping.
2：Sample Selection and Data Sources:
Prototypes are manufactured using additive manufacturing techniques, including micro laser sintering technology (MLS) with stainless steel and 3D printing with Acrylonitrile Butadiene Styrene (ABS) followed by copper laquering.
3：List of Experimental Equipment and Materials:
Commercial simulators (CST Studio Suite 2018, Ansys Electronics), vector network analyzer for measurements, and additive manufacturing equipment.
4：Experimental Procedures and Operational Workflow:
Design optimization for directivity and reflection coefficient, manufacturing of prototypes, and measurement of reflection coefficient and radiation patterns.
5：Data Analysis Methods:
Comparison of simulated and measured results to validate the designs.
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