双频MIMO天线与2.4/5.8 GHz通信和可穿戴技术的低互联合
Wahaj Abbas Awan1, Tanvir Islam2, Fahad N Alsunaydih3
1Department of Information and Communication Engineering, Chungbuk National University, Cheongju, South Korea.
PloS one
|April 17, 2024
概括
本研究介绍了一种用于无线设备的紧型双频带天线. 优化的多输入多输出 (MIMO) 天线提供了卓越的性能,低相互合和高增益.
科学领域:
- 电磁学和天线设计
- 无线通信系统无线通信系统
- 微波工程 微波工程
背景情况:
- 现代通信系统和可穿戴设备需要在2.4/5.8 GHz频段运行的高效天线.
- 现有的天线解决方案可能会面临大小,带宽或在多输入-多输出 (MIMO) 配置中的相互合方面的挑战.
研究的目的:
- 为2.4/5.8 GHz应用开发一种简单,紧,双频带天线解决方案.
- 设计和验证一个双端口MIMO天线配置,减少相互合和增强性能.
- 评估特定吸收率 (SAR) 对于体内/体外通信的适用性.
主要方法:
- 基于圆形单极的天线设计,并插入了补丁和头.
- 对天线参数 (带宽和增益) 的遗传算法优化.
- 创建一个2端口的MIMO配置,使用一个共同的地面技术,以最大限度地减少相互合.
主要成果:
- 实现了一个紧的MIMO天线配置,电尺寸为0.26 λL × 0.53 λL.
- 证明了低的相互合 (<-27 dB) 和0.2.2的外相关系数 (ECC).
- 获得的天线增益约为6.2dBi和6.5dBi,分别为2.45GHz和5.4GHz.
- SAR分析证实了在体内/体外通信的标准限值内的值.
结论:
- 拟议的紧型双频MIMO天线满足了现代无线系统的要求.
- 与现有文献相比,该设计在尺寸,带宽和低相互合方面提供了卓越的性能.
- 由于其有利的SAR特性,天线适用于机身内/外通信应用.
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