研究目的
Designing a wideband coupler based on half-mode ridge substrate integrated waveguide (HMRSIW) for microwave systems.
研究成果
The designed wideband coupler based on HMRSIW demonstrates good performance in Ku-band, offering compactness and ease of integration. Attention to screw placement or the use of bonding materials is recommended to optimize performance.
研究不足
The performance of the coupler is significantly influenced by the proximity of fixing screws and nuts, suggesting a need for careful placement or alternative bonding methods.
1：Experimental Design and Method Selection:
The coupler design utilizes a gradual slot on wide-wall for coupling, aiming for wideband performance. Theoretical models include the lateral resonance method for calculating cutoff wavelengths and phase differences for coupling coefficient determination.
2：Sample Selection and Data Sources:
The coupler is designed on a substrate with specific permittivity and loss tangent, with dimensions optimized for performance.
3：List of Experimental Equipment and Materials:
Substrates with relative permittivity of 2.65 and dielectric loss tangent 0.0009 at 10GHz, screws, nuts, and bonding materials for assembly.
4：65 and dielectric loss tangent 0009 at 10GHz, screws, nuts, and bonding materials for assembly.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The design involves determining the central frequency, calculating coupling slot length, and optimizing slot width and position for return loss and bandwidth.
5：Data Analysis Methods:
Simulation using HFSS18.0, with performance metrics including power equality, return loss, isolation, and phase difference between output ports.
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