研究目的
Designing a high-gain wideband antenna using a double-layer metasurface structure to enhance gain and frequency bandwidth.
研究成果
The proposed antenna achieves a high gain of up to 18 dBi and a wide frequency bandwidth from 10.8 GHz to 15 GHz with good impedance matching, demonstrating effectiveness of the double-layer metasurface design for enhancing antenna performance.
研究不足
The paper does not explicitly state limitations, but potential areas include the complexity of multi-layer fabrication, sensitivity to dimensional tolerances, and the specific frequency range (10.8-15 GHz) which may not cover other bands.
1：Experimental Design and Method Selection:
The antenna design utilizes a multi-layer metasurface structure with double-sided periodic arrays (AIS and PRS) to form a Fabry-Perot cavity for gain enhancement and bandwidth widening. The method involves optimizing the distance between layers and the dimensions of unit cells.
2：Sample Selection and Data Sources:
The antenna is fabricated and measured, with simulation and experimental data compared for validation.
3：List of Experimental Equipment and Materials:
Substrates with εr = 2.2 and loss tangent of 0.02, microstrip feed lines, radiation patches, and periodic arrays for AIS and PRS. Specific equipment for measurement (e.g., network analyzer) is implied but not detailed.
4：2 and loss tangent of 02, microstrip feed lines, radiation patches, and periodic arrays for AIS and PRS. Specific equipment for measurement (e.g., network analyzer) is implied but not detailed.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Fabricate the antenna prototype, measure S11 and gain using appropriate equipment, simulate the design using electromagnetic simulation software, and compare results.
5：Data Analysis Methods:
Analyze S11 for impedance matching, gain measurements, and radiation patterns using simulation and experimental data to evaluate performance.
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