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一个太空中集成的S/Ka双频双反射天线
Zenan Yang1, Weiqiang Han2, Liang Tang3
1School of Electronic Engineering, Xidian University, Xi'an 710071, China.
Micromachines
|January 28, 2026
概括
本研究介绍了一个集成的S/Ka双频带天线,使用微型元件和频率选择面 (FSS) 副反射器. 这种新的设计克服了光圈阻塞,实现了高效的双频卫星通信.
科学领域:
- * 电气工程 电气工程
- * 航空航天工程 航空航天工程
- * 电磁学 是一个电磁学领域.
背景情况:
- * 卫星通信系统需要能够支持各种数据速率和可靠链接的天线.
- * 集成的双频天线面临的挑战是S频段的长波长,导致输送喇大小问题和光圈堵塞.
- *现有的设计在卫星平台上面临空间限制,影响效率和实用性.
研究的目的:
- *为集成的S/Ka双带卫星通信天线提出有效的解决方案.
- * 为了克服双频设计中的二次光圈阻塞问题.
- * 为了在S频段和Ka频段同时实现高增益辐射.
主要方法:
- * 设计一个集成的双反射天线,具有S/Ka双频带功能.
- * 实现多频段光圈重复使用,使用一组小型化的S频段元件围绕Ka频段输送喇.
- * 集成基于频率选择面 (FSS) 的次反射器,以增强S频段的光圈,并允许Ka频段的传播.
主要成果:
- * S频段通道实现了超过20.2dBic的收益,半功率光束宽度 (HPBWs) 在左手和右手循环偏振信号中都大于6°.
- *Ka频段通道的收益超过41.2dBic,HPBW大于0.8°.
- * 对天线输送和FSS次反射器进行了电磁模拟和参数优化.
结论:
- * 拟议的集成S/Ka双频天线有效地解决了空间限制和光圈阻塞问题.
- * 频率选择面 (FSS) 次反射器使同时高增益双频段操作成为可能.
- *实验结果验证了天线在先进的卫星通信应用中的性能.
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