Design and Demonstration of an Electronically Scanned Reflectarray Antenna at 100 GHz Using Multiresonant Cells Based on Liquid Crystals
Design and Demonstration of an Electronically Scanned Reflectarray Antenna at 100 GHz Using Multiresonant Cells Based on Liquid Crystals
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DOI：
10.1109/tap.2015.2434421
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发表时间：
2015-08-01
影响因子：
5.7
通讯作者：
Bain, Michael
中科院分区：
文献类型：
--
作者：
Perez-Palomino, Gerardo;Barba, Mariano;Bain, Michael
介绍了一种工作在100 GHz以上的基于液晶的可重构反射阵列天线的设计、制作和测试结果。该天线被设计为在宽角度范围内提供波束扫描能力，大带宽和降低的旁瓣电平（SLL）。测量的辐射模式是在良好的协议与模拟，并表明，天线产生一个电子可操纵的波束在一个平面上的角度范围为55度的频带从96至104 GHz。对于所有扫描角度，SLL低于-13 dB，并且在16%的扫描范围内获得-18 dB。所测得的性能是显着优于以前公布的结果，这类电子可调天线，而且，验证了LC建模和天线设计的建议程序的准确性。
The design, fabrication, and measured results are presented for a reconfigurable reflectarray antenna based on liquid crystals (LCs) which operates above 100 GHz. The antenna has been designed to provide beam scanning capabilities over a wide angular range, a large bandwidth, and reduced side-lobe level (SLL). Measured radiation patterns are in good agreement with simulations, and show that the antenna generates an electronically steerable beam in one plane over an angular range of 55 degrees in the frequency band from 96 to 104 GHz. The SLL is lower than -13 dB for all the scan angles and -18 dB is obtained over 16% of the scan range. The measured performance is significantly better than previously published results for this class of electronically tunable antenna, and moreover, verifies the accuracy of the proposed procedure for LC modeling and antenna design.