应用超材料结构的电动汽车蓝牙天线电磁屏蔽

2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS) Pub Date : 2021-11-01 DOI:10.1109/comcas52219.2021.9629035

Geyse M. B. Silva, L. Kretly

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引用次数: 1

摘要

提出了一种可用于车载蓝牙通信系统天线电磁屏蔽的超材料应用。电磁屏蔽过程包括减少影响感兴趣设备的电磁波的色散。电磁屏蔽过程中的三个主要参数是反射、吸收和多次反射。在这些参数方面，超材料在微带天线结构中的应用取得了良好的结果。S11参数从-21.7 dB (2.4 GHz)降低到-30.6 dB。通过应用超材料对RCS(横截面雷达)进行优化，当θ和φ = 0°时，RCS在2.2 GHz至3.4 GHz的整个频率范围内降低，在3.2 GHz范围内从-23 dB降低到-26.9 dB，该频率下RCS降低3.9 dB。参考天线的吸收系数由61%提高到73%。

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Electromagnetic Shielding of a Bluetooth Antenna for Electric Vehicles Applying Metamaterial Structures

The article proposes metamaterials application for the electromagnetic shielding of an antenna that may be used in a vehicle’s Bluetooth communication system. The electromagnetic shielding process consists of reducing the dispersion of electromagnetic waves that affect a device of interest. The three main parameters of interest in the electromagnetic shielding process are reflection, absorption, and multiple reflections. The results of the application of metamaterials in the microstrip antenna structure are promising in these parameters. The S11 parameter decreased from -21.7 dB (2.4 GHz) to -30.6 dB with metamaterial. The RCS (cross-section radar) was optimized with the application of metamaterials, for theta and phi = 0° the RCS decreased over the entire frequency range between 2.2 GHz and 3.4 GHz, in 3.2 GHz decrease from -23 dB to -26.9 dB, a 3.9 dB reduction in RCS at this frequency. The absorption factor of the reference antenna increased from 61% to 73%.

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2021 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS)

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