4.6 Article

W-Band Broadband Circularly Polarized Reflectarray Antenna

期刊

ELECTRONICS
卷 12, 期 18, 页码 -

出版社

MDPI
DOI: 10.3390/electronics12183849

关键词

W-band; reflectarray; broadband; circularly polarized

向作者/读者索取更多资源

This article proposes a W-band circularly polarized reflectarray antenna with broad bandwidth and high aperture efficiency, making it suitable for wireless communication applications.
We propose a W-band circularly polarized reflectarray antenna in this article, which contains a single-layer reflectarray and a linearly polarized horn feed. To realize the proposed antenna, we designed a novel W-band multi-resonant element containing a Rogers RT5880 substrate with copper patches printed on its both surfaces. Then, a circular reflectarray with 12.25 lambda(0) (39.1 mm) aperture diameter was designed based on the proposed multi-resonant element, whose center frequency is 94 GHz. We further fabricated the proposed circular reflectarray and tested its performance. In the measured results, we can see that the obtained 1 dB gain bandwidth is 19.1% (91 similar to 109 GHz) and the obtained 2 dB gain bandwidth can reach as wide as 27.6% (89 similar to 115 GHz). Moreover, the 3 dB axial ratio bandwidth is 13.8% (89 similar to 102 GHz). The measured gain of our proposed reflectarray antenna at 94 GHz is 29.1 dBi and the corresponding aperture efficiency can reach as high as 52.0%. Those results show that our proposed antenna may be prospective in wireless communication applications due to its strengths in broadband and high aperture efficiency.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据