研究目的
To design and demonstrate a symmetrical dual-beam planar bowtie antenna with gain enhancement using metamaterial arrays for 5G MIMO applications.
研究成果
The proposed antenna achieves symmetrical dual-beam radiation at ±30° with a maximum gain of 7.4 dBi and 4.2 dB improvement over a wide beam antenna, demonstrating good impedance matching and low fabrication cost, making it suitable for 5G MIMO applications.
研究不足
The paper does not explicitly mention limitations, but potential areas include frequency shift due to fabrication errors, and the complexity of MTM integration which might affect scalability or cost in mass production.
1：Experimental Design and Method Selection:
The study involves designing a bowtie antenna integrated with three pairs of metamaterial arrays to achieve dual-beam radiation and gain enhancement. Full-wave electromagnetic simulations using HFSS software are conducted to verify the design, followed by experimental fabrication and measurement.
2：Sample Selection and Data Sources:
A prototype antenna is fabricated on Rogers5880 substrate. Data sources include simulation results from HFSS and experimental measurements in an anechoic chamber.
3：List of Experimental Equipment and Materials:
Equipment includes a vector network analyzer (Agilent PNX-X-N5245A), end launch connectors from Southeast Microwave Company, and fabrication tools. Materials include Rogers5880 substrate with specific permittivity and thickness.
4：Experimental Procedures and Operational Workflow:
The antenna is designed with specific MTM unit cells (triple-I type and meander line), fabricated, and then measured for S-parameters and radiation patterns. The workflow includes simulation, fabrication, and measurement steps.
5：Data Analysis Methods:
Data is analyzed by comparing simulated and measured results for reflection coefficient, gain, and radiation patterns, using statistical agreement and parametric studies.
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