研究目的
To design compact dual-band bow-tie MIMO antennas with high isolation for modern wireless communication systems.
研究成果
The proposed compact dual-band MIMO antennas with fragment-type isolation achieve return loss higher than 10dB and isolation higher than 25dB in the dual bands of 2.45-2.75GHz and 3.35-3.9GHz, making them suitable for WiMAX MIMO wireless communication systems.
研究不足
The paper does not explicitly mention limitations, but the focus is on achieving high isolation and return loss in specific dual bands, which may limit applicability to other frequency ranges.
1：Experimental Design and Method Selection:
The design involves the use of MOEA/D-DE for optimization of canonical structures and MOEA/D-GO for optimization of fragment structures, combined and iterated for compound optimization.
2：Sample Selection and Data Sources:
The array consists of two bow-tie antennas fabricated on a 2-mm thick substrate with specific dielectric properties.
3：List of Experimental Equipment and Materials:
Substrate with relative dielectric constant of
4：2 and loss tangent of 0007, coaxial cables with SMA connectors. Experimental Procedures and Operational Workflow:
The design process includes initialization, isolation evaluation and judgment, MOEA/D-GO optimization, return losses evaluation and judgment, MOEA/D-DE optimization, and iteration until desired performance is achieved.
5：Data Analysis Methods:
Simulated and measured S-parameters are compared to evaluate performance.
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