A Dual-Port Dual-Beam Pattern-Reconfigurable Antenna With Independent 2-D Beam-Scanning

IF 4.6 1区计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Antennas and Propagation Pub Date : 2024-09-09 DOI:10.1109/TAP.2024.3452425

Yujie Zhang;Shiwen Tang;Junhui Rao;Chi-Yuk Chiu;Xudong Chen;Ross Murch

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引用次数: 0

Abstract

A novel dual-port dual-beam reconfigurable antenna with independent dual-beam 2-D scanning capability is presented. The antenna consists of two driven ports and a shared beamforming surface consisting of subwavelength reconfigurable metal-lines (RMLs). The two ports can each form a radiation beam that can be independently controlled by changing p-i-n diode switch states on the RML surface. Modeling and analysis of the antenna is performed to provide design guidelines for dual-beam scanning, impedance matching, and mutual coupling. The results from a prototyped dual-port dual-beam reconfigurable antenna operating at 3.6 GHz with over 400-MHz bandwidth and providing 360° scanning in azimuth and 60° in elevation are reported. The measured results demonstrate the antenna’s high beamforming capability with the two beams capable of independent 2-D beam-scanning. In addition, the antenna has an average realized gain of 8 dBi, a port isolation exceeding 20 dB, and the total efficiency exceeding 80% across all reconfigurable states. This dual-port dual-beam scanning antenna has potential applications in future wireless communication systems where compact beamforming antennas are becoming important.

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具有独立二维波束扫描功能的双端口双波束模式可重构天线

本文介绍了一种新型双端口双波束可重构天线，它具有独立的双波束二维扫描能力。该天线由两个驱动端口和一个由亚波长可重构金属线（RML）组成的共享波束成形表面组成。通过改变 RML 表面上的 pi-n 二极管开关状态，两个端口可各自形成独立控制的辐射波束。天线的建模和分析为双波束扫描、阻抗匹配和相互耦合提供了设计指导。报告了双端口双波束可重构天线原型的结果，该天线工作频率为 3.6 GHz，带宽超过 400 MHz，可提供 360° 方位扫描和 60° 仰角扫描。测量结果表明，该天线具有很强的波束成形能力，两个波束能够进行独立的二维波束扫描。此外，该天线的平均实现增益为 8 dBi，端口隔离度超过 20 dB，在所有可重构状态下的总效率超过 80%。这种双端口双波束扫描天线有望应用于未来的无线通信系统，因为在这些系统中，紧凑型波束成形天线正变得越来越重要。

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

IEEE Transactions on Antennas and Propagation 工程技术-电信学

CiteScore

10.40

自引率

28.10%

发文量

968

审稿时长

4.7 months

期刊介绍： IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques