28/38 GHz MEMS-Controlled SIW Antenna for 5G Communication Systems

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-03-31 DOI:10.1002/mop.70182

Asmaa E. Farahat, Khalid F. A. Hussein

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Abstract

A novel design for a reconfigurable antenna is proposed for 5G communication systems. The antenna operates in two bands 28 and 38 GHz. Two parallel slots have been created in the upper surface of the SIW antenna cavity. The configurability of the antenna is achieved through a rotary strip where the orientation of the strip specifies the operating frequency of either 28 or 38 GHz. The controlling strip can be rotated while touching the upper external wall surface of the SIW cavity through a micro-electro-mechanical system (MEMS) servomotor. At the orientation where the rotary strip is rotated to be normal to the feed line and parallel to the slots, it operates at 28 GHz. At the orientation where the rotary strip is rotated to be parallel to the feed line and normal to the slots, it operates at 38 GHz. When the rotary strip is normal to the two radiating slots, it divides each slot into two equal slots. The radiation efficiency is improved by the dual-slot configuration at the two operating frequencies 28 and 38 GHz. The bandwidth at 28 GHz band is 1.1 GHz and at 38 GHz band 0.9 GHz. The peak value of the gain at the 28 GHz band is 5.4 dBi with a radiation efficiency of 80.5% and at the 38 GHz band 6 dBi with a radiation efficiency of 82%. To verify the achieved numerical results by simulations, a prototype of the antenna is fabricated and subjected to practical measurements showing good consent with the simulation results.

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用于5G通信系统的28/38 GHz mems控制SIW天线

针对5G通信系统，提出了一种新的可重构天线设计方案。天线工作在28 GHz和38 GHz两个频段。在SIW天线腔的上表面创建了两个平行槽。天线的可配置性是通过旋转带实现的，其中旋转带的方向指定28 GHz或38 GHz的工作频率。通过微机电系统（MEMS）伺服电机，控制条在接触SIW腔体上外壁面的同时实现旋转。在旋转带旋转成与馈线垂直并与插槽平行的方向上，它的工作频率为28 GHz。在旋转带旋转方向平行于馈线和正常的插槽，它的工作在38 GHz。当旋转条与两个辐射槽垂直时，将每个槽划分为两个相等的槽。在28ghz和38ghz两种工作频率下采用双槽结构，提高了辐射效率。28ghz频段带宽为1.1 GHz， 38ghz频段带宽为0.9 GHz。28ghz频段增益峰值为5.4 dBi，辐射效率为80.5%；38ghz频段增益峰值为6 dBi，辐射效率为82%。为了通过仿真验证所得到的数值结果，制作了天线样机并进行了实际测量，结果与仿真结果吻合较好。

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

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication