研究目的
To design a phased array antenna capable of finely steering beam without increasing the number of antennas, improving the resolution for indoor localization systems.
研究成果
The paper introduces a design of an 8-port phased array antenna for AoA-based indoor positioning systems, capable of smoothly steering the main beam. The radiation pattern tested shows the main beam direction is close to the desired direction in simulation, with side lobe levels less than the main beam by about 10dB.
研究不足
The change of phase shift due to variation of electrical length when pairing and the amplitude variation on both Wilkinson power divider and Reflection type phase shifter lead to differences between measured and simulated main beam directions. Side lobe levels in reality are much higher than in simulation.
1：Experimental Design and Method Selection:
The design involves a phased array antenna with a full 360o and programmable continuous phase shifter. The methodology includes the use of angle of arrival techniques for indoor localization.
2：Sample Selection and Data Sources:
The antenna system is designed to operate at Wi-Fi band for indoor positioning with smartphones.
3：List of Experimental Equipment and Materials:
The design uses FR4 and Roger4003c materials for fabricating parts like Wilkinson power dividers and reflection type phase shifters.
4：Experimental Procedures and Operational Workflow:
The radiation pattern is measured in an anechoic chamber from -45o to 45o.
5：5o.
Data Analysis Methods:
5. Data Analysis Methods: The performance is evaluated based on the main beam direction and side lobe levels compared to simulation results.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
