带有模式和极化多样性的双频带天线
1Department of Electronic Engineering, Kyonggi University, Suwon 16227, Republic of Korea.
Sensors (Basel, Switzerland)
|August 10, 2024
概括
这项研究引入了一种新的模式多样性天线. 它在两个频段中实现了明显的宽侧和形辐射模式,增强了先进无线应用的极化多样性.
科学领域:
- 天线工程天线工程
- 电磁学 电磁学 电磁学 电磁学
- 无线通信无线通信
背景情况:
- 传统天线往往表现出有限的模式多样性,限制了它们在复杂的无线环境中的性能.
- 对于先进的通信系统来说,在多个频段实现直角辐射模式至关重要.
研究的目的:
- 设计和验证一种能够在两个不同的频段产生独特辐射模式的模式多样性天线.
- 为了研究天线的偏振多样性特征和端口隔离性能.
主要方法:
- 提出了一个新的天线结构,包括一个中央圆形天线和两个带个别端口的环形环形天线.
- 天线的设计包括在环形环天线的内部部位短路阵列,并将最外端的端口定位为直角,以增强端口隔离.
- 制造出来的原型经过实验评估,以测量其带宽和隔离特性.
主要成果:
- 拟议的天线在较低频段 (端口1和3) 显示了直角宽侧辐射模式,在较高频段 (端口1和2) 显示了直角形辐射模式.
- 在两个相应的频段中,在 -26.7 dB 和 -30.1 dB 的极好的端口隔离值得到了实现.
- 该天线在目标频段实现了240 MHz (5.71-5.95 GHz) 和210 MHz (7.69-7.9 GHz) 的-10 dB带宽.
结论:
- 开发的模式多样性天线成功地在两个频段中提供了不同的辐射模式和极化多样性.
- 拟议的设计提供高端口隔离,使其适用于需要多频段操作的先进无线通信系统.
- 实验验证证证实了天线能够满足各种应用的指定的性能指标的能力.
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