研究目的
To design and evaluate two microstrip antennas with fan-shaped radiation patterns for 28 GHz MIMO applications, focusing on achieving high isolation between orthogonally polarized arrays and high antenna gain.
研究成果
The paper successfully presents dual-polarized printed microstrip patch array antennas with 90o and 45o fan-shaped radiation patterns for 28 GHz MIMO applications. The antennas demonstrate good performance characteristics, including high isolation between orthogonally polarized arrays and high gain, making them suitable for modern communication systems.
研究不足
The impact of fabrication tolerances on the performance of the antennas, especially on the surface waves reduction mechanism provided by parasitic patches. The anechoic chamber's imperfections affecting cross-talk measurements.
1：Experimental Design and Method Selection:
The antennas were designed using an aperture coupled microstrip antenna (ACMA) approach with an H-shaped slot. Special techniques like parasitic patches and directors were used to improve isolation and suppress parasitic radiation.
2：Sample Selection and Data Sources:
Antennas were fabricated on Rogers RT/Duroid 5880 substrate and measured in an anechoic chamber.
3：List of Experimental Equipment and Materials:
Rogers RT/Duroid 5880 substrate, Taconic TacBond HT1.5 films, Rosenberger 02K243 2.92 mm coaxial connector, CST Microwave Studio for simulation.
4：5 films, Rosenberger 02K243 92 mm coaxial connector, CST Microwave Studio for simulation.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Antennas were simulated in CST Microwave Studio, fabricated, and then measured for S-parameters, far-field patterns, and gains.
5：Data Analysis Methods:
Measured data was compared with simulation results to evaluate performance.
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