基于双感槽的CP MIMO天线,具有极化带宽可重新配置
Niamat Hussain1, Khaled Aljaloud2, Rifaqat Hussain3
1Department of Intelligent Mechatronics Engineering, Sejong University, Seoul, Korea.
Scientific reports
|September 26, 2023
概括
本研究介绍了一种紧的,可重新配置的循环偏振 (CP) 天线,用于次GHz应用. 它提供双感 CP 和极化带宽调整性,非常适合 CubeSats.
科学领域:
- 电磁学和波浪传播
- 天线理论和设计.
- 无线通信系统无线通信系统
背景情况:
- 在次GHz频段中对紧,多功能天线的需求正在增加,特别是在CubeSat应用中.
- 现有的天线往往缺乏重新配置性或双感的循环极化能力.
- 在小的形式因素中实现宽带宽和模式多样性仍然是一个挑战.
研究的目的:
- 推出一种新的,紧的,平面的循环极化 (CP) 基于槽的多输入多输出 (MIMO) 天线.
- 为了证明双感 CP (RHCP 和 LHCP) 和极化带宽的重新配置性.
- 为了评估天线适合于低于千兆赫的立方卫星应用.
主要方法:
- 设计和模拟一个五角形的,反应性加载的槽天线,由折叠的线供电.
- 为可重新配置的CP共振集成一个Varactor二极管.
- 优化双元MIMO配置以在紧尺寸内实现模式多样性.
- 操作频段的特征,轴向比 (AR) 带宽和MIMO性能.
主要成果:
- 该天线实现了双感 CP (RHCP和LHCP) 和线性极化 (LP) 操作.
- 极化带宽的重新配置性通过调整变频器二极管电容度来证明.
- 实现了578-929 MHz的宽-10 dB操作频段和490-810 MHz的AR带宽.
- 紧的MIMO设计 (100 × 100 × 0.76 mm3) 显示出良好的图案多样性.
结论:
- 拟议的天线提供了紧尺寸,宽带子GHz运行,双感 CP 和极化重新配置的独特组合.
- 它的性能特性使其成为低于千兆赫的立方体卫星通信系统的强大候选者.
- 该设计解决了开发用于小型卫星平台的先进天线的关键挑战.
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