一个带宽的天线与循环极化利用U形散热器和寄生带无线通信
Basma M Yousef1, Allam M Ameen2, Meshari D Alanazi3
1Communications Department, Delta Higher Institute for Engineering and Technology, Mansoura 35681, Egypt.
Micromachines
|July 29, 2023
概括
这项研究介绍了一个小型化的,宽带的,循环极化单极管天线. 这种新的设计为UWB,sub-6 GHz和WLAN等无线应用实现了出色的性能.
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:
- 微型天线对于现代无线设备至关重要.
- 在小型天线中同时实现宽带宽和圆极化是具有挑战性的.
- 现有的天线设计往往难以满足各种无线应用的需求.
研究的目的:
- 提出一款具有宽带和循环极化 (CP) 特性的新型,小型化的单极天线.
- 调查影响天线性能的设计参数,包括带宽和轴向比.
- 验证天线适用于超宽带 (UWB),低于6 GHz和无线局域网 (WLAN) 应用的适用性.
主要方法:
- 在FR4基板上采用了U形散热器,斜槽部分地面平面和寄生带.
- 对天线尺寸进行了优化,以实现宽带运行 (S11 ≤ -10 dB).
- 通过激发具有相同幅度和90°相差的两个模式来实现圆极化,由地面平面槽尺寸控制. 轴比带宽使用寄生性条带扩展.
主要成果:
- 该天线实现了30 × 32 mm2的小型化尺寸.
- 演示了81.25% (5.2GHz从3.8-9GHz) 的广泛运行带宽,S11 ≤-10dB.
- 实现了30.7%的3dB轴比 (AR) 带宽 (1.63GHz从4.48-6.11GHz).
结论:
- 拟议的天线设计成功地整合了小型化,宽带宽和圆极化.
- 该天线符合UWB,sub-6 GHz和WLAN系统的性能要求.
- 该设计为下一代无线通信系统提供了一个有前途的解决方案,这些系统需要紧且多功能天线.
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