印刷的多输入多输出天线由被动元材料和缺陷地面为各种第六代应用提供动力
Shahanawaz Kamal1, Padmanava Sen2
1Radio Frequency Design Enablement Group, Barkhausen Institut, 01067, Dresden, Germany. shahanawaz.kamal@barkhauseninstitut.org.
Scientific reports
|July 2, 2025
概括
为6G无线技术开发了六种基于曲线的多输入多输出 (MIMO) 天线. 这些紧的天线在6GHz频段实现了高端口隔离和理想的关键性能指标 (KPI).
科学领域:
- 无线通信工程 无线通信工程
- 天线理论和设计.
- 超材料和电磁学 超材料和电磁学
背景情况:
- 无线设备的指数增长需要在第六代 (6G) 技术的进步.
- 6 GHz频谱被确定为6G部署的关键框架.
- 紧的印刷多输入多输出 (MIMO) 天线在实现高端口隔离和其他关键性能指标 (KPIs) 方面面临挑战.
研究的目的:
- 为各种6G应用引入基于曲线的新型MIMO天线.
- 为了克服紧型MIMO天线的制造复杂性和性能限制.
- 调查被动元材料结构用于电磁带间隙 (EBG) 创建的使用.
主要方法:
- 设计和模拟六个独特的曲线基于MIMO天线原型.
- 用于EBG的被动元材料结构 (方形环和短线引脚) 的集成.
- 在无声室进行数值模拟和实验验证.
- 实施了阻抗匹配,循环极化 (CP) 和高端口隔离的策略.
主要成果:
- 拟议的MIMO天线具有高端口隔离 (高达21dB) 和准同位素的CP.
- 原型在6 GHz频段表现出色,包括带宽高达9.69%和收益高达7.1dBic.
- 实现了高效率 (高达94%) 和宽轴比带宽 (高达60.63%).
- 所有设计都显示出良好的MIMO性能,外相关系数<0.2和多样性增益≈10dB.
- 这些天线是低调的 (0.03λ) 和紧的 (1.1λ × 1.1λ),适合低成本的终端.
结论:
- 开发的基于曲线的MIMO天线成功地解决了在6G的紧设计中高端口隔离和性能方面的挑战.
- 集成EBG结构和特定的散热器/地面设计有助于优越的天线KPI.
- 这些新的天线超越了最先进的技术,非常适合各种6G集成传感和通信应用.
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