在C频段的频率中解和遮矩形和圆形补丁天线和带有平面涂层元表面的交联天线阵列-设计和模拟研究
Shefali Pawar1, Doojin Lee2, Harry Skinner3
1Department of Electrical and Computer Engineering, University of Mississippi, University, MS 38677-1848, USA.
Sensors (Basel, Switzerland)
|January 11, 2024
概括
使用元表面的电磁遮蔽显著减少了密切距离的补丁天线的相互干扰. 这种天线隐蔽方法可以提高性能指标,例如矩形和圆形天线阵列的效率和增益.
科学领域:
- 电磁和天线工程 电磁和天线工程
- 超材料和纳米光子学
背景情况:
- 在密集的天线阵列中,相互干扰会降低性能.
- 在各种应用中常见的补丁天线,当放置在非常接近的地方时,会受到合的影响.
研究的目的:
- 为了研究电磁遮蔽的有效性,以减轻紧密间隔的矩形和圆形补丁天线的相互干扰.
- 为了提高线性补丁天线阵列的性能特征,使用超表面隐蔽.
主要方法:
- 在补丁天线的顶部表面涂上超表面涂层.
- 评估隐蔽对天线参数的影响,例如相互合,匹配特征,总效率和远场增益模式.
- 在一系列光束扫描角度的矩形和圆形补丁天线阵列上测试隐蔽方法.
主要成果:
- 超表面遮蔽大大减少了天线之间的相互合.
- 隐蔽的矩形补丁阵列显示了93%和90%的峰值总效率 (相对于57%和21%的非隐蔽) 和13.2dB和13.8dB的收益 (相对于10dB和5.5dB的非隐蔽).
- 蒙蔽的圆形补丁阵列实现了总效率为91%和89% (相对于71%和55%的未蒙蔽),增益约为14.2dB (相对于10.5dB和7.5dB的未蒙蔽).
结论:
- 在紧的天线设计中,用超表面进行电磁遮蔽是一种可行的策略,以抑制相互干扰.
- 隐蔽技术大大提高了补丁天线阵列的效率和收益,从而实现了更广泛的光束扫描能力.
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