适用于智能手表和物联网应用的紧型双频段毫米波天线,连接预算估计
Parveez Shariff Bhadrvathi Ghouse1, Pallavi R Mane1, Sangeetha Thankappan Sumangala2
1Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal 576104, India.
Sensors (Basel, Switzerland)
|January 11, 2024
概括
这项研究介绍了未来智能手表的紧型双频带天线,在毫米波频谱中运行. 该天线实现了高增益和低特定吸收率 (SAR),为物联网 (IoT) 应用实现1 Gbps的数据传输.
科学领域:
- 电气工程 电气工程
- 天线设计天线设计
- 无线通信无线通信
背景情况:
- 智能手表连接要求低延迟和宽带宽,超过目前的ISM频段功能.
- 毫米波 (mmWave) 频谱为未来高性能智能手表应用提供了解决方案.
- 现有的天线难以满足先进的可穿戴设备日益增长的数据速率和连接要求.
研究的目的:
- 为智能手表应用在25.5GHz和38GHz运行设计和评估一个紧的双频带天线.
- 利用特征模式理论 (CMT) 在所需频段优化天线性能.
- 评估天线在不钢表箱中的性能,考虑增益,带宽和特定吸收率 (SAR).
主要方法:
- 以特征模式理论 (CMT) 为指导的天线设计,以激发特定的共振模式.
- 测量天线性能,包括带宽 (BW) 和最大增益,在25.5 GHz和38 GHz.
- 在模拟的不钢表箱内评估天线特性,包括S11参数,增益改进和SAR.
主要成果:
- 双频天线实现了1.5GHz (25-26.5GHz) 和2.5GHz (37-39.5GHz) 的带宽,收益分别为7.4dBi和7.3dBi.
- 在手表外内,天线表现出稳定的S11,显著增强增强 (9.9和10.9dBi) 和低SAR值 (0.063和0.0206W/kg).
- 链接预算分析表明,1 Gbps数据传输的潜力,尽管由于影像效应而出现了色.
结论:
- 开发的紧型双频mmWave天线适用于先进的智能手表和物联网应用.
- 天线为可穿戴设备中的高带宽,低延迟通信提供了可行的解决方案.
- 尽管存在轻微的色问题,但天线的高增益,可行的带宽和低SAR使其成为下一代连接的有希望的候选人.
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