• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>European Conference on Antennas and Propagation >Time efficient antenna payload measurement technique for future multi-spot-beam antennas
【24h】

Time efficient antenna payload measurement technique for future multi-spot-beam antennas

机译：省时的天线和有效载荷测量技术，可用于未来的多点波束天线

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Future communication satellites equipped with multi spot beam antennas are providing more than 100 adjacent coverages on earth create very high demands for RF measurements during acceptance test campaigns performed prior to the satellite's launch. The antenna's beam isolation and frequency re-use capability require high measurement accuracies for the related test facility and a high time efficiency during the antenna and payload test campaigns considering the high number of beams. This paper explains in detail the measurement system concept and control of multi-port antenna measurement set-ups working on a time-multiplex concept which provides typically a higher beam-to-beam isolation and higher measurement accuracies than alternative concepts working on low frequency modulated scatterer technique. Since future satellites will make also use of Ka frequency bands, traditionally used PIN switches are not favorable due to the increasing insertion loss at those frequencies. For that reason an alternative approach was designed by utilizing MEMS switches. Additionally the paper points out the attainable time efficiency for typical spacecraft antenna measurements in compact range test facilities using state-of-the-art equipment with a few adaptations for dedicated telecommunication applications, e.g. the above mentioned MEMS switches.
机译：未来配备多点波束天线的通信卫星将在地球上提供100多个相邻覆盖范围，这在卫星发射之前进行的验收测试活动中对RF测量提出了很高的要求。天线的波束隔离和频率复用能力要求相关测试设备具有很高的测量精度，并且在考虑大量波束的情况下需要进行天线和有效载荷测试活动时需要较高的时间效率。本文详细解释了测量系统的概念和基于时分复用概念的多端口天线测量装置的控制，与采用低频调制的替代概念相比，该技术通常可提供更高的波束对波束隔离和更高的测量精度散射技术。由于未来的卫星也将使用Ka频段，因此传统使用的PIN开关由于在这些频率上的插入损耗增加而不利。因此，通过利用MEMS开关设计了另一种方法。此外，本文还指出了在紧凑范围测试设备中使用最先进的设备对典型航天器天线进行测量所能达到的时间效率，该设备具有一些适用于专用电信应用的适应性技术。以上提到的MEMS开关。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号