Circularly Polarized High Gain Antenna Design Using Slot-Notch Mechanism for Millimeter Wave 5G Applications

IF 1.8 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Communication Systems Pub Date : 2026-08-25 DOI:10.1002/dac.70600

Mamoni Saha, Taimoor Khan, Daasari Surender, Fazal Ahmed Talukdar, Sembiam R. Rengarajan

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引用次数: 0

Abstract

This study presents the development of a compact, broadband microstrip patch antenna operating at 32.6 GHz, tailored for fifth-generation (5G) millimeter-wave (mm-wave) communication systems. Designed on low-loss Rogers RO4003 (ε_r= 3.38, 0.8 mm), the structure ensures minimal dielectric loss and stable broadband performance. The radiating patch includes a central rectangular slot for bandwidth enhancement, upper-corner open-ended notches for current control and surface-mode suppression, and lower-edge rectangular stubs to improve impedance matching and polarization performance. The proposed design exhibits a resonant frequency centered at 32.6 GHz and delivers a measured impedance bandwidth of 1.5 GHz (31.7–33.2 GHz). At resonance, the antenna exhibits −24.8 dB reflection, indicating excellent matching. In terms of characteristics, the antenna achieves a peak gain of 7.2 dB at 32.6 GHz, making it suitable for directional transmission in compact communication modules. The proposed antenna supports circular polarization, reducing polarization mismatch and multipath fading. It achieves a 0.5 GHz 3-dB axial-ratio bandwidth (32.4–32.9 GHz), ensuring stable circular-polarization performance over a significant portion of the operating band. A prototype of the antenna was fabricated and tested, with the experimental results showing excellent agreement with simulated data, thereby confirming the design's viability for real-world mm-wave 5G applications.

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毫米波5G应用中基于缺口机制的圆极化高增益天线设计

本研究提出了一种紧凑型宽带微带贴片天线的开发，工作频率为32.6 GHz，专为第五代（5G）毫米波（mm-wave）通信系统定制。该结构基于低损耗的Rogers RO4003 (εr= 3.38, 0.8 mm)，确保了最小的介电损耗和稳定的宽带性能。该辐射贴片包括用于带宽增强的中心矩形槽，用于电流控制和表面模式抑制的上角开放式缺口，以及用于改善阻抗匹配和极化性能的下边缘矩形存根。所提出的设计显示出以32.6 GHz为中心的谐振频率，并提供1.5 GHz （31.7-33.2 GHz）的测量阻抗带宽。谐振时，天线反射−24.8 dB，匹配良好。在特性方面，该天线在32.6 GHz时的峰值增益为7.2 dB，适用于紧凑型通信模块中的定向传输。该天线支持圆极化，减少了极化失配和多径衰落。它实现了0.5 GHz 3db轴比带宽（32.4-32.9 GHz），确保了在大部分工作频段内稳定的圆极化性能。制作了天线原型并进行了测试，实验结果与模拟数据非常吻合，从而证实了该设计在现实世界毫米波5G应用中的可行性。

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 Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.