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Engineering and Technology The American Journal of Engineering and Technology

Investigating a dual-band microstrip patch antenna for sub-6 GHz wireless communication: design and characterization

Dr. Chen Liang
School of Electronic and Information Engineering, South China University of Technology, China
Dr. Zhao Hui
Department of Communication Engineering, Harbin Institute of Technology, China
VOLUME 7
ISSUE 09
YEAR 2025
PAGES 1-7

Abstract

This paper presents the design, simulation, and characterization of a dual-band microstrip patch antenna intended for sub-6 GHz wireless communication applications. The proposed antenna incorporates a rectangular patch with optimized slots and a partial ground plane to achieve dual-band operation while maintaining a compact form factor. Detailed parametric studies were conducted to fine-tune the resonant frequencies and impedance bandwidths. The antenna was fabricated on an FR4 substrate, and its performance was evaluated using both simulation and experimental measurements. Results demonstrate that the antenna operates effectively across two frequency bands—centered at 3.5 GHz and 5.2 GHz—with satisfactory return loss, radiation patterns, and gain characteristics suitable for modern wireless systems such as 5G and WLAN. The findings highlight the potential of the proposed design for integration into portable and low-profile wireless communication devices.

Keywords

Dual-band antenna microstrip patch antenna sub-6 GHz wireless communication

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