研究目的
Investigating the performance of a circular phased antenna array constructed on a finger ring for 28 GHz 5G communication systems, including its resilience to user effects and coverage efficiency.
研究成果
The proposed finger ring phased antenna array demonstrates resilience to user effects with a stable coverage efficiency. A coverage efficiency of 70% for 7 dBi gain was observed in free space, dropping by 20% when user effects were introduced. The study also noted a correlation between high power loss density and antenna de-tuning, suggesting areas for future research including full body user model simulations.
研究不足
The study does not include full body simulations due to the arbitrary position of the finger ring and hand, which could lead to random shadowing effects from the body. Additionally, the impact of user effects on antenna performance is not fully explored with a comprehensive user model.
1：Experimental Design and Method Selection:
The study involves the construction and simulation of a circular phased antenna array on a finger ring for 28 GHz 5G communication systems. The methodology includes simulations in free space and with a user’s hand phantom on three fingers.
2：Sample Selection and Data Sources:
The antenna array's performance is evaluated through simulations, with specific attention to coverage efficiency and power loss density in the presence of a user’s hand.
3：List of Experimental Equipment and Materials:
The antenna array is composed of inverted-L antenna elements distributed around a ring, with materials including Te?on ring spacer, copper ring ground plane, Rogers RO3003 substrate, and copper antennas.
4：Experimental Procedures and Operational Workflow:
The study involves simulating the antenna array's performance in free space and with a user’s hand, analyzing reflection coefficients, coverage efficiency, and power loss density.
5：Data Analysis Methods:
The performance metrics include coverage efficiency calculated from the total scan pattern and power loss density in the tissue.
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