...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Proceedings of the IEEE >Advances in Scanning Reflectarray Antennas Based on Ferroelectric Thin-Film Phase Shifters for Deep-Space Communications
【24h】

Advances in Scanning Reflectarray Antennas Based on Ferroelectric Thin-Film Phase Shifters for Deep-Space Communications

机译：基于铁电薄膜移相器的反射阵列天线在深空通信中的研究进展

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Though there are a few examples of scanning phased array antennas that have flown successfully in space, the quest for ldquolow costrdquo high-efficiency large-aperture microwave phased arrays continues. Fixed and mobile applications that may be part of a heterogeneous exploration communication architecture will benefit from the agile (rapid) beam steering and graceful degradation afforded by phased array antennas. The reflectarray promises greater efficiency and economy compared to directly radiating varieties. Implementing a practical scanning version has proven elusive. The ferroelectric reflectarray, under development and described herein, involves phase shifters based on coupled microstrip patterned on films that were laser ablated onto substrates. These devices outperform their semiconductor counterparts from X- through and K-band frequencies. There are special issues associated with the implementation of a scanning reflectarray antenna, especially one realized with thin-film ferroelectric phase shifters. This paper will discuss these issues, which include relevance of phase shifter loss; modulo 2 effects and phase shifter transient effects on bit error rate; scattering from the ground plane; presentation of a novel hybrid ferroelectric-semiconductor phase shifter; and the effect of mild radiation exposure on phase shifter performance.
机译：尽管有一些在空间上成功飞行的扫描相控阵天线的例子，但对低成本，高效大口径微波相控阵的追求仍在继续。固定和移动应用（可能是异构探测通信体系结构的一部分）将从相控阵天线提供的敏捷（快速）波束控制和适度降级中受益。与直接辐射的品种相比，reflectarray有望提高效率和经济性。事实证明，实施实用的扫描版本非常困难。正在开发和在此描述的铁电反射阵列涉及基于在激光烧蚀到基板上的膜上构图的耦合微带的移相器。这些器件在X频段和K频段上的性能均优于其半导体同类产品。扫描反射阵列天线的实现存在一些特殊问题，尤其是薄膜铁电移相器实现的问题。本文将讨论这些问题，其中包括移相器损耗的相关性。模2效应和移相器瞬态效应对误码率的影响；从地平面散射；提出了一种新型混合铁电半导体移相器；以及轻度辐射对移相器性能的影响。

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