Bandwidth Enhancement, Analysis, and Comparison of Microstrip Patch Antennas for Millimeter Wave

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Date

2025-05

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Addis Ababa University

Abstract

In the rapidly advancing landscape of wireless communication technology, there is a pressing need for antennas that are compact, lightweight, cost-effective, and have a low profile. Microstrip patch antennas have emerged as popular choices in numerous wireless communication applications due to their inherent benefits such as lightweight, compact size, affordability, ease of fabrication, and high reliability. However, these antennas encounter challenges, notably in the form of narrow bandwidth and low gain. Various design factors influence the radiation properties of microstrip antennas, encompassing feeding techniques, substrate materials, patch configuration, and ground structures. This thesis is devoted to addressing the limitations of narrow bandwidth and low gain in microstrip patch antennas, specifically tailored for 5G mobile communication. In this study, we enhanced a microstrip patch antenna’s design to boost performance for 5G applications. By carefully adjusting its dimensions, the antenna achieved a bandwidth of 7.64% (2140 MHz), a return loss of -39.388 dB, and a VSWR of 1.021. These results show that our method significantly enhances the antenna’s performance compared to previous designs, making it more effective for 5G communication.

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Keywords

Microstrip patch antennas, 5G (fifth generation ), Bandwidth, Parasitic Patch, and Gain.

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