3-D Beam-Steering 2 × 2 Array Antenna With Tunable Frequency Based on the Phase Difference Between Patches

IF 4.8 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-07-10 DOI:10.1109/LAWP.2025.3586936

Y. Cho;Y. Sung

引用次数: 0

Abstract

In this letter, we propose a 2 × 2 array antenna capable of 3-D beam-steering and operating frequency adjustment. Each element consists of a patch antenna and a narrow-width I-shaped stub, with two varactor diodes placed between them. By varying the equivalent capacitance values of the varactors applied to each patch, a phase difference between the patches is achieved. As a result, the proposed antenna has continuous beam-steering within the range of −15° to +15° in elevation plane and full 360° in azimuth plane. Additionally, the resonant frequencies of the antenna could be adjusted depending on the equivalent capacitance values between the patch antenna and stub. From the measurement results, the proposed antenna shows continuous 3-D beam-steering of 30° in the 6.87% (2.95 GHz to 3.16 GHz) usable bandwidth.

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基于贴片相位差的可调频率三维波束控制2 × 2阵列天线

在这封信中，我们提出了一种能够三维波束导向和工作频率调整的2 × 2阵列天线。每个元件由贴片天线和窄宽度的i形短管组成，它们之间有两个变容二极管。通过改变应用于每个贴片的变容管的等效电容值，可以实现贴片之间的相位差。因此，该天线在仰角面- 15°至+15°范围内具有连续波束导向，在方位角面具有360°的连续波束导向。此外，天线的谐振频率可以根据贴片天线和存根之间的等效电容值进行调整。从测量结果来看，该天线在6.87% （2.95 GHz ~ 3.16 GHz）可用带宽下显示出30°的连续三维波束导向。

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.