Miniaturized-Element Offset-Feed Planar Reflector Antennas Based on Metasurfaces

被引：31

作者：

Han, Yajuan ^{[1
]}

Zhang, Jieqiu ^{[1
]}

Li, Yongfeng ^{[1
]}

Wang, Jiafu ^{[1
]}

Qu, Shaobo ^{[1
]}

Yuan, Hangying ^{[1
]}

Yu, Jibao ^{[1
]}

机构：

[1] Air Force Engn Univ, Coll Sci, Xian 710051, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2017年 / 16卷

基金：

中国国家自然科学基金;

关键词：

Metasurfaces; miniaturized-element; offset feed; planar reflector antennas; DESIGN;

D O I：

10.1109/LAWP.2016.2572878

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, we propose a low-profile planar reflector antenna based on metasurfaces. Metasurfaces are planar version of metamaterials, which are composed of 2-D arrays of subwavelength elements. Due to the subwavelength nature, metasurface-based reflector antenna can be made much thinner and grating lobes can be further suppressed. As an example, a 400 x 400-mm(2) offset-fed planar reflector with a focal length F = 300 mm is designed to mould spherical wavefronts into planar ones at 10.0 GHz. The thickness and element spacing is less than lambda(0)/15 and lambda(0)/6, respectively. Moreover, due to symmetry of the element, the planar reflector is polarization-independent. A prototype was fabricated and measured. Both the simulated and measured results show that the planar reflector antenna can achieve a narrow main lobe and operate over 9.5-10.5 GHz with gain larger than 23 dB.

引用

页码：282 / 285

页数：4

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