4.7 Article

Design of Wideband High-Efficiency Circularly Polarized Folded Reflectarray Antenna

期刊

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 69, 期 10, 页码 6988-6993

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2021.3096276

关键词

Reflector antennas; Broadband antennas; Antenna arrays; Wideband; Antenna feeds; Antennas; Polarization; Circularly polarized folded reflectarray antenna (CPFRA); circularly polarized selective surface (CPSS); high efficiency; wideband

资金

  1. National Key Research and Development Program of China [2020YFA0713900]

向作者/读者索取更多资源

This paper presents a wideband high-efficiency circularly polarized folded reflectarray antenna based on CP selective surface (CPSS). The antenna design includes a simple CPSS, a wideband reflectarray plane, and a wideband planar CP antenna. The measured results show that the fabricated prototype has good performance with high gain, bandwidth, axial-ratio, and aperture efficiency, making it potentially valuable for wireless communication systems.
This communication presents a wideband high-efficiency circularly polarized (CP) folded reflectarray antenna (FRA) based on the CP selective surface (CPSS). The proposed CPFRA is comprised of a simple CPSS on the top layer, a wideband reflectarray plane on the bottom layer, and a wideband planar CP antenna as the primary source. First, the simple CPSS based on the traditional Pierrot structure is designed. The CPSS can reflect one CP wave, while it can transmit its orthogonal CP wave. Then, a subwavelength element is used to design the wideband reflectarray, and a wideband planar CP microstrip patch array is selected as the feed. According to the ray tracing principle, the distance between the upper CPSS and the bottom planar reflectarray is reduced to half of the distance between the planar reflectarray and the imaginary feed approximately. At last, we design a wideband high-efficiency CPFRA. Measured results of the fabricated prototype reveal that its maximum gain at 10 GHz is 27.8 dBic, its 3 dB gain bandwidth is 15%, its 3 dB axial-ratio (AR) bandwidth is 23%, and its maximum aperture efficiency is about 45.4%. Good broadband and low-profile characteristics make the proposed CPFRA have potential value in some wireless communication system.

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

4.7
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