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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >A comprehensive analysis on the state-of-the-art developments in reflectarray, transmitarray, and transmitreflectarray antennas
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A comprehensive analysis on the state-of-the-art developments in reflectarray, transmitarray, and transmitreflectarray antennas

机译：对反射阵列，传输阵列和传输array天线的最先进发展的综合分析

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摘要

Contemplating the advancements in communication technology, the analysis of the features of reflectarray, transmitarray, and transmit-reflectarray becomes essential for future adaptability. This article presents a thorough review of such high-gain antennas, presenting some of the most relevant solutions published by the scientific society in the field of antennas and wave propagation. Several examples of unit cells for array implementation and complete array designs discussed in various literatures are analyzed. The analysis is focused in identifying the unit cell layouts, such as those developed using microstrip patches, frequency selective surfaces, or metamaterials. The analysis is extended to the ways of improving bandwidth, for example, true time delay elements, phase delay lines, meander lines, and so on, and the various methods used to enable reconfiguration, for example, p-i-n diodes, varactor diodes, or microelectromechanical systems. In addition, some antennas, which produce bidirectional beams simultaneously, are also discussed. Finally, all the models are compared against each other in order to highlight their benefits and limitations, summarizing their main characteristics, such as the frequency of operation, bandwidth, phase range, gain, aperture efficiency, sidelobe levels, cross polarization levels, and maximum beam-steering range.
机译：考虑通信技术的进步，对反射阵列，传输阵列和传输反射阵列的特征分析对于未来的适应性至关重要。本文介绍了对此类高增益天线的彻底审查，展示了科学社会在天线领域发布的一些最相关的解决方案和波传播。分析了用于各种文献中讨论的阵列实现和完整阵列设计的单元电池的几个例子。分析专注于识别单位单元布局，例如使用微带贴片，频率选择性表面或超材料开发的那些。该分析扩展到改进带宽的方式，例如，真正的时延迟元件，相位延迟线，曲折线等，以及用于实现重新配置的各种方法，例如，引脚二极管，变容二极管或微机电系统。另外，还讨论了同时产生双向光束的一些天线。最后，所有模型都相互比较，以突出它们的好处和限制，总结其主要特征，例如操作频率，带宽，相位范围，增益，光圈效率，侧瓣级，交叉极化水平和最大值光束转向范围。

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