Dielectric lens antennas
Dielectric lens antennas
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介质透镜天线
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Jorge R. Costa
中科院分区：
文献类型：
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作者：
C. Fernandes;E. Lima;Jorge R. Costa
介电透镜天线在毫米波和亚毫米波应用中引起了人们的新兴趣，因为它们变得紧凑，特别是对于集成馈电的配置，通常称为集成透镜天线。透镜非常灵活，设计和制造简单，在这些频率上是反射天线的可靠替代品。镜头目标输出范围可以从简单的准直光束（增加馈电指向性）到更复杂的多物镜规格。本章介绍了不同类型的介质透镜天线和透镜的设计方法。详细介绍了具有代表性的透镜天线设计实例，重点介绍了均匀集成透镜。对不同的透镜分析方法进行了回顾，然后讨论了相关的透镜天线实现问题，如馈电选项，介电材料特性，制造方法和一些专用测量技术。本章最后详细介绍了一些涉及介质透镜天线的最新应用实例。
Dielectric lens antennas are attracting a renewed interest for millimeterand submillimeter-wave applications where they become compact, especially for configurations with integrated feeds usually referred as integrated lens antennas. Lenses are very flexible and simple to design and fabricate, being a reliable alternative at these frequencies to reflector antennas. Lens target output can range from a simple collimated beam (increasing the feed directivity) to more complex multi-objective specifications. This chapter presents a review of different types of dielectric lens antennas and lens design methods. Representative lens antenna design examples are described in detail, with emphasis on homogeneous integrated lenses. A review of the different lens analysis methods is performed, followed by the discussion of relevant lens antenna implementation issues like feeding options, dielectric material characteristics, fabrication methods, and a few dedicated measurement techniques. The chapter ends with a detailed presentation of some recent application examples involving dielectric lens antennas.