3.5 GHz vivaldi antennas: A feed line analysis for unleashing 5G communication technology

Othman, Mohd Azlishah and Shahirah Ruslan, Nur Aishah and Misran, Mohamad Harris and Meor Said, Maizatul Alice and Abdul Manap, Redzuan and Ja'afar, Abd Shukur and Hassan, Nurmala Irdawaty and Suhaimi, Shadia (2023) 3.5 GHz vivaldi antennas: A feed line analysis for unleashing 5G communication technology. ASEAN Engineering Journal, 13 (3). pp. 159-163. ISSN 2586-9159

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Abstract

In this study, we discuss the design and testing of a Vivaldi antenna operating at 3.5 GHz, which is well-suited for mobile mid-band 5G connection. CST Microwave Studio software was used to simulate and evaluate the suggested antenna design, which was printed utilising state-of-the-art 3D printing processes and materials (polylactic acid (PLA) and FR-4 circuit board material). The measured results show that the antenna has a reflection frequency of 3.51 GHz and a gain of -23.695 dB. Parametric analysis was carried out to examine the relationship between antenna performance and design parameters, with special focus on the separation between the antenna and the PLA material in the middle of the spherical construction. The Vivaldi antenna is an attractive choice for 5G mid-band applications because of its wideband features, ease of manufacture using typical industrial processes, and simplicity of impedance matching to the feeding line using microstrip line modelling.

Item Type:	Article
Uncontrolled Keywords:	Vivaldi antennas, 3D printed antenna, Return loss, Antenna gain, Mid Band 5G, Polylactic Acid (PLA)
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	12 Jun 2025 14:54
Last Modified:	12 Jun 2025 14:54
URI:	http://eprints.utem.edu.my/id/eprint/28743
Statistic Details:	View Download Statistic

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