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相关概念视频

Generating Electromagnetic Radiations01:10

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The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
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对于5G毫米波应用的频率选择性基于表面的MIMO天线阵列

Iftikhar Ud Din1, Mohammad Alibakhshikenari2, Bal S Virdee3

  • 1Telecommunication Engineering Department, University of Engineering and Technology, Mardan 23200, Pakistan.

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|August 12, 2023
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概括
此摘要是机器生成的。

本研究介绍了一种用于5G毫米波应用的新型MIMO天线阵列,实现高增益和隔离. 该设计最大限度地减少了相互合,以提高5G系统性能.

关键词:
这是一个MIMO天线.第五代 (5G) 网络频率选择性的表面选择性毫米波 (mm wave) 区域是一个毫米波区域.互联合减速 互联合减速宽带宽的宽带宽宽带宽的宽带宽.

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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:

  • 毫米波 (mmWave) 频率对5G至关重要,由于高路径损失和组件灵敏度,在天线设计中存在挑战.
  • 多输入多输出 (MIMO) 天线阵列中的相互合可以显著降低系统性能,特别是在更高的频率.

研究的目的:

  • 为2x2 MIMO阵列提出和验证一个修改的圆形补丁辐射元件,为5G毫米波应用量身定制.
  • 为了减轻天线元件之间的相互合,并提高整体阵列性能,包括增益和隔离.
  • 为了研究频率选择面 (FSS) 对MIMO阵列增益的影响.

主要方法:

  • 在高频基板上使用修改的圆形补丁元件 (Rogers RT/Duroid) 设计和制造2x2 MIMO天线阵列.
  • 辐射元件的直角配置以减少相互合.
  • 集成7x7频率选择面 (FSS) 与C形共振器以增强收益.

主要成果:

  • 单个天线元件实现了S11 ≤-10dB的1.6GHz (27.2528.85GHz) 的测量阻抗带宽.
  • 在28 GHz时,MIMO阵列显示了7.2dBi的增益和超过26dB的隔离.
  • 整合FSS使MIMO阵列的增益在28 GHz时增加到8.6dBi,方向辐射垂直于阵列平面.

结论:

  • 拟议的修改圆形补丁元件和直角配置有效地减轻了5G毫米波MIMO阵列中的相互合.
  • FSS集成显著提高了阵列的增益,使其适合要求高的5G应用.
  • 该阵列显示出出色的性能指标,包括28 GHz 5G频段内的低封面相关系数 (<0.002) 和高多样性增益 (>9.99 dB).