Vertically Polarized, Pattern-Reconfigurable, Yagi–Uda Dielectric Resonator Antenna

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2024-12-31 DOI:10.1109/LAWP.2024.3524421

Yuerong Liu;Zhan Wang;Yuandan Dong

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引用次数: 0

Abstract

In this letter, we propose a novel vertically polarized pattern-reconfigurable dielectric resonator antenna. A cylindrical dielectric resonator (DR) operating in vertically polarized and omnidirectional TM_01δ mode is excited by a central probe. Based on the Yagi principle, we innovatively introduced four top-loaded copper columns integrated into DR to surround the probe as controllable reflectors. Consequently, one original omnidirectional and eight directional patterns with 45° steps can be easily switched by manipulating four PIN diodes. Due to its high permittivity and the unseparated reflectors, it features a compact size of π×0.16λ₀²×0.14λ₀, simple structures, and a brief control mechanism. The overlapping bandwidth of the antenna is 2.62 GHz to 2.82 GHz (7.4%). Its average peak gains are about 4 dBi in the omnidirectional state, and 5.6 dBi/5.4 dBi in the directional states. The proposed antenna shows great potential for miniaturized indoor wireless communication to enhance target radiation and provide wide coverage.

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垂直极化，模式可重构，Yagi-Uda介电谐振器天线

在这封信中，我们提出了一种新的垂直极化模式可重构的介电谐振器天线。利用中心探针激发工作在垂直极化全向TM01δ模式下的圆柱形介质谐振器（DR）。基于八木原理，我们创新地引入了四个顶部加载的铜柱集成到DR中，作为可控反射器围绕探头。因此，可以通过操纵四个PIN二极管轻松切换一个原始的全向和八个45°步长方向模式。由于其高介电常数和不分离的反射体，它具有π×0.16λ02×0.14λ0的紧凑尺寸，结构简单，控制机构简短的特点。天线的重叠带宽为2.62 GHz ~ 2.82 GHz（7.4%）。它的平均峰值增益在全向状态下约为4 dBi，在定向状态下约为5.6 dBi/5.4 dBi。该天线在微型化室内无线通信中具有增强目标辐射和扩大覆盖范围的潜力。

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 Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.