现代雷达2016，Vol.38Issue(8)：59-63,5.DOI:10.16592/j.cnki.1004-7859.2016.08.014
基于超表面的宽带低剖面圆极化天线设计
Design of a Wideband Low-profile Circularly Polarized Antenna Based on Metasurface
摘要
Abstract
A wideband low-profile circularly polarized antenna design based on metasurface is proposed .The antenna consists of two layers, a metasurface composed of square units with truncated corners is placed on the top layer while using a traditional linearly polarized microstrip slot antenna as the other one .The metasurface′s operational principle of switching linearly polarized wave into circularly polarized wave is analyzed , and the parameters of the antenna are optimized according to their influence on the band pa -rameters.Simulated results show that the antenna can radiate circularly polarized wave and its impedance bandwidth is broaden by loading metasurface.The relative impedance bandwidth and 3 dB axial ratio bandwidth can reach 17% and 7.2%, respectively. To verify the effectiveness of the antenna design, the prototype of antenna is fabricated and measured, and the measured results a-gree well with the simulation, which demonstrates the antenna's satisfying property of wideband circular polarization .The antenna is favorable for conformal applications as it keeps the 3D size of only 0.4λ×0.4λ×0.03λ.关键词
超表面/缝隙微带天线/低剖面/宽带/圆极化天线Key words
metasurface/microstrip slot antenna/low profile/wideband/circularly polarized antenna分类
信息技术与安全科学引用本文复制引用
谢开,高军,曹祥玉,高宽亮..基于超表面的宽带低剖面圆极化天线设计[J].现代雷达,2016,38(8):59-63,5.基金项目
国家自然科学基金资助项目（61271100，61471389，61501494）；陕西省自然科学基础研究项目 （）
