Wideband Metasurface Antenna for In-Band Full-Duplex Applications

IF 1.8 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Communication Systems Pub Date : 2024-12-24 DOI:10.1002/dac.6093

Sha Li, Kang Yu Yang, Duo-Long Wu

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Abstract

This article proposes a novel metasurface patch antenna with characteristics of metasurface and broadband for in-band full-duplex applications, which is configured with a parasitic metasurface, a square patch, two separated feeding networks for transmitting and receiving ports (Tx and Rx), and a square ground. Two feeding networks consist of an antisymmetric L-shaped probe feeding structure for Rx and a double F-shaped feeding structure with a 3 dB/180° hybrid coupler for the Tx port to achieve ±45° polarization and significantly enhanced isolation between the ports. Most importantly, the proposed parasitic metasurface realizes good impedance matching and improves realized gain. Therefore, the proposed antenna attains a −10 dB of overlapped bandwidth of 52.6% through 1.7 to 2.7 GHz with a high isolation of over 41.5 dB. Additionally, the measured gains are 8.9 ± 1.1 dBi for the Rx port and 7.4 ± 0.9 dBi for the Tx port, respectively. These characteristic data all support that the proposed antenna will play an essential role in IBFD applications.

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带内全双工应用的宽带超表面天线

本文提出了一种具有超表面和宽带特性的带内全双工超表面贴片天线，该天线配置了一个寄生超表面、一个方形贴片、两个分离的发送和接收端口馈电网络（Tx和Rx）和一个方形地。两个馈电网络包括Rx的反对称l形探针馈电结构和Tx端口的双f形馈电结构，该馈电结构带有3db /180°混合耦合器，可实现±45°极化，并显着增强端口之间的隔离。最重要的是，所提出的寄生超表面实现了良好的阻抗匹配，提高了实现增益。因此，该天线在1.7至2.7 GHz范围内实现了52.6%的重叠带宽- 10 dB，隔离度超过41.5 dB。此外，Rx端口的测量增益为8.9±1.1 dBi， Tx端口的测量增益为7.4±0.9 dBi。这些特性数据都支持该天线将在IBFD应用中发挥重要作用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.

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