研究目的
To propose a low-profile dual-polarized MIMO antenna array with high isolation for improving channel capacity and reliability in wireless systems, specifically for base station applications.
研究成果
The proposed low-profile dual-polarized MIMO antenna array achieves high isolation (up to 25dB) through a decoupling structure, with minimal impact on VSWR, gain, and radiation patterns. It is suitable for base station applications, offering improved performance in wireless systems.
研究不足
The paper does not explicitly mention limitations, but based on the content, potential areas for optimization could include further miniaturization, broader bandwidth, or experimental validation beyond simulations.
1：Experimental Design and Method Selection:
The design involves using two crossed dipole antennas with an AMC surface to achieve low profile (10mm height). A decoupling structure is added between the antennas to enhance isolation without slotting the floor.
2：Sample Selection and Data Sources:
The antenna array is designed on substrates: FR4 (dielectric constant
3：4, thickness 3mm) for the antennas and Rogers 5880 (dielectric constant 2, thickness 508mm) for power dividers, with a common ground. List of Experimental Equipment and Materials:
Substrates (FR4 and Rogers 5880), metallic components for dipoles and AMC surface, decoupling structure with specific geometric dimensions (e.g., L2=39mm, W2=W5=2mm, L3=30mm, W3=
4：5mm, L4=31mm, L5=8mm). Experimental Procedures and Operational Workflow:
The design is simulated and analyzed; simulations include VSWR, gain, S12 (isolation), and radiation patterns. The decoupling structure is integrated and its effects are compared with the initial design.
5：Data Analysis Methods:
Simulation results are used to analyze impedance bandwidth, gain, isolation, and radiation patterns, with comparisons made between designs with and without the decoupling structure.
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