Design and Implementation of a Compact Dual-Band MIMO Antenna Module With Enhanced Bandwidth and Isolation

IF 0.9 4区工程技术 Q4 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

International Journal of RF and Microwave Computer-Aided Engineering Pub Date : 2025-03-07 DOI:10.1155/mmce/7326700

Hamed Hamlbar Gerami, Robab Kazemi, Aly E. Fathy

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Abstract

In this paper, a compact dual-band antenna module has been developed, achieving significant isolation between the ports. The design integrates an open-edge slot antenna for the lower frequency band (5.15–7.1 GHz) with a 1 × 2 MIMO metasurface antenna for the mmWave frequency range (24.5–29.5 GHz), resulting in a high-performance, compact dual-band solution. The slot antenna is optimized for a reduced size configuration with enhanced bandwidth for lower frequencies, while the metasurface antenna delivers wider bandwidth and stable performance in the mmWave range with minimal mutual coupling and high efficiency. This makes the overall design highly effective for modern compact dual-band applications. The dual-band antenna module has dimensions of 20 × 16.5 × 0.99 mm (0.39λ₀ × 0.32λ₀ × 0.01λ₀, where λ₀ represents the free-space wavelength at 5.85 GHz). It achieves a measured peak gain of 3.8 dB for the lower band and 8.81 dB for the mmWave band. Additionally, the output of the mmWave antennas can be combined for higher gain or used in a MIMO configuration, enhancing channel capacity and communication reliability, which are critical for modern wireless systems.

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本文开发了一种紧凑型双频天线模块，实现了端口之间的显著隔离。该设计集成了一个用于低频段（5.15-7.1 GHz）的开边槽天线和一个用于毫米波频率范围（24.5-29.5 GHz）的 1 × 2 MIMO 元表面天线，从而形成了一个高性能的紧凑型双频解决方案。插槽天线经过优化，尺寸更小，带宽更大，适用于较低频率；而元面天线在毫米波范围内带宽更宽，性能更稳定，相互耦合最小，效率更高。这使得整体设计在现代紧凑型双频应用中非常有效。双频天线模块的尺寸为 20 × 16.5 × 0.99 mm（0.39λ0 × 0.32λ0 × 0.01λ0，其中λ0 表示 5.85 GHz 的自由空间波长）。低频段的实测峰值增益为 3.8 dB，毫米波频段为 8.81 dB。此外，毫米波天线的输出可以组合在一起以获得更高的增益，或用于多输入多输出（MIMO）配置，从而提高信道容量和通信可靠性，这对现代无线系统至关重要。

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

International Journal of RF and Microwave Computer-Aided Engineering 工程技术-工程：电子与电气

CiteScore

4.00

自引率

23.50%

发文量

489

审稿时长

3 months

期刊介绍： International Journal of RF and Microwave Computer-Aided Engineering provides a common forum for the dissemination of research and development results in the areas of computer-aided design and engineering of RF, microwave, and millimeter-wave components, circuits, subsystems, and antennas. The journal is intended to be a single source of valuable information for all engineers and technicians, RF/microwave/mm-wave CAD tool vendors, researchers in industry, government and academia, professors and students, and systems engineers involved in RF/microwave/mm-wave technology. Multidisciplinary in scope, the journal publishes peer-reviewed articles and short papers on topics that include, but are not limited to. . . -Computer-Aided Modeling -Computer-Aided Analysis -Computer-Aided Optimization -Software and Manufacturing Techniques -Computer-Aided Measurements -Measurements Interfaced with CAD Systems In addition, the scope of the journal includes features such as software reviews, RF/microwave/mm-wave CAD related news, including brief reviews of CAD papers published elsewhere and a "Letters to the Editor" section.