概括
本研究介绍了Fabry-Perot天线的吸收部分反射表面 (APRS). APRS同时实现高增益和宽带雷达截面减小,增强隐形能力.
科学领域:
- 电磁和天线工程 电磁和天线工程
- 超材料和超表面.
- 雷达截面 (RCS) 降低 雷达截面 (RCS) 降低
背景情况:
- 部分反射表面对于高收益的法布里-佩罗特 (F-P) 天线至关重要.
- 在FP天线中同时实现高增益和宽带低雷达截面 (RCS) 是一个重大挑战.
研究的目的:
- 提出一种新的高收益FP天线,具有宽带RCS降低和低配置配置.
- 通过使用战略吸收部分反射表面 (APRS) 来解决增益和RCS减少之间的固有冲突.
主要方法:
- 在FP天线设计中整合战略吸收部分反射表面 (APRS).
- 全波数值模拟来分析RCS减少和天线增益.
- 一个原型天线的制造和测量.
主要成果:
- 该APRS显示了单向吸收,有效地解决了增益-RCS冲突.
- 在特定频段 (10.515.2 GHz,22.528 GHz) 中,从630 GHz实现了>0 dB的单静态RCS降低和>10 dB.
- 保持了13.8dBi的峰值实现增益,辐射波的吸收最小 (约. 3.7%). 这是一个很好的例子.
- 将天线配置最小化为0.34 λc.
- 实验验证证证实,拟议的APRS扩大了对多功能隐形超表面的应用.
结论:
- 拟议的APRS是在FP天线中实现高增益和宽带低RCS的有效解决方案.
- APRS独特的单向吸收特性克服了传统元表面的局限性.
- 开发的天线技术对集成隐形超表面具有重大影响.
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