双频段毫米波MIMO天线,基于优化的寄生体结构和地面修改的减少互联合
Bashar A F Esmail1, Dustin Isleifson1, Slawomir Koziel2,3
1Department of Electrical & Computer Engineering, University of Manitoba, Winnipeg, MB, R3T 5V6, Canada.
Scientific reports
|September 3, 2024
概括
一种用于5G室内使用的新型双频段 (28/38 GHz) 多输入多输出 (MIMO) 天线实现了高隔离 (> 32 dB) 和优异的多样性性能. 这种天线设计通过模拟和测量得到验证,证实其适用于5G应用的适用性.
科学领域:
- 电气工程 电气工程
- 天线理论天线理论
- 无线通信无线通信
背景情况:
- 5G毫米波 (mmWave) 技术需要用于室内应用的先进天线解决方案.
- 现有的天线设计可能面临着在双频带毫米波频率的隔离和性能方面的挑战.
- 多输入多输出 (MIMO) 系统对于提高5G数据速率和可靠性至关重要.
研究的目的:
- 为5G室内应用提供一种新的高隔离双频段 (28/38 GHz) MIMO天线.
- 使用加速信任区域 (TR) 算法优化天线尺寸,以实现高效运行.
- 通过寄生元素和地面修改来增强四元MIMO阵列中的隔离.
主要方法:
- 设计和模拟双频天线与互连的初级和二级补丁.
- 使用加速信任区域 (TR) 算法优化天线尺寸.
- 一个四元直角MIMO阵列的配置,带有寄生虫补丁和地面修改,以增强隔离.
- 性能评估包括增益,隔离,外相关系数 (ECC),通道容量损失 (CCL),总活性反射系数 (TARC) 和多样性增益 (DG).
主要成果:
- 设计的天线在28GHz和38GHz都能获得超过7dBi的增益.
- 在优化后,四元MIMO系统在两个频段都显示了32dB以上的隔离.
- 该MIMO系统表现出优异的多样性性能,ECC<10−4,CCL<0.03位/秒/Hz,TARC<-10dB,和DG>9.99dB.
- 制造和测试证实了模拟和测量性能指标之间的良好一致.
结论:
- 拟议的双频MIMO天线设计有效地解决了5G室内毫米波系统中高隔离和强大的性能需求.
- 加快的信任区域算法在优化复杂的天线参数方面被证明是有效的.
- 经过验证的性能指标证实了该系统适用于苛刻的5G室内通信环境的适用性.
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