利用PRS增强双极化滤波IBFD天线的增益和频率选择性

IF 1.6 3区 工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Ngoc Tien Le, Truong Le-Huu, Ngoc An Nguyen, S. Ta, Khac Kiem Nguyen, N. Nguyen-Trong
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引用次数: 0

摘要

针对带内全双工(IBFD)应用,提出了一种具有高选择性和高隔离度的双极化滤波法布里-珀罗天线(FPA)。所提出的天线使用方形贴片作为馈电元件,该馈电元件由高隔离度的双极化辐射的双差分馈电方案馈电。贴片加载有对称的交叉槽和四个短路引脚,用于宽通带滤波功能。为了增强宽频率范围内的宽边增益,贴片结合了部分反射表面(PRS),该表面由两个互补的交叉缝隙和贴片阵列组成。此外,利用PRS的频率选择性来改善滤波特性。双差分馈电是基于异相功率分配器实现的,该分配器与简单的低通滤波器相结合,以进一步提高带外抑制。制作并测量了最终设计。测量结果显示出优异的结果,10 dB回波损耗带宽为21.5%(4.91–6.09 GHz),隔离度大于40 dB,峰值增益为13.7 dBi,带外抑制电平优于27 dB,交叉极化电平小于-27 dB。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Gain and Frequency-Selectivity Enhancement of Dual- Polarized Filtering IBFD Antenna Using PRS
A dual-polarized filtering Fabry–Perot antenna (FPA) with high selectivity and high isolation is proposed for in-band full-duplex (IBFD) applications. The proposed antenna utilizes a square patch as the feeding element, which is fed by a double differential-fed scheme for dual-polarized radiation with high isolation. The patch is loaded with a symmetrical cross-slot and four shorting pins for a broad passband filtering feature. To enhance broadside gain across a wide frequency range, the patch is incorporated with a partially reflecting surface (PRS), which is composed of two complementary cross-slot and patch arrays. Moreover, the frequency selectivity of PRS is exploited to improve the filtering characteristic. The double differential feeds are realized based on out-of-phase power dividers, which are combined with simple low-pass filters to further improve the out-of-band suppression. The final design was fabricated and measured. The measurement results show excellent results with a 10-dB return loss bandwidth of 21.5% (4.91–6.09 GHz), isolation of greater than 40 dB, peak gain of 13.7 dBi, out-of-band suppression level of better than 27 dB, and a cross-polarization level of less than –27 dB.
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来源期刊
Journal of electromagnetic engineering and science
Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
2.90
自引率
17.40%
发文量
82
审稿时长
10 weeks
期刊介绍: The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.
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