A practical study of multi-layer high gain U-slot printed antenna array design

Authors : Gülden Günay Bulut Öner, Asena Melike Çayan, Suad Başbuğ, Yasemin Altuncu

Pages : 846-854

Doi:10.28948/ngumuh.1643101

View : 124 | Download : 164

Publication Date : 2025-07-15

Article Type : Research Paper

Abstract :In this paper, we propose the design of a multi-layer high-gain U-slot printed antenna array consisting of 2x2 elements.The design consists of four layers: The first layer is a ground plane as a single-sided copper clad FR4. The second layer, made from PETG material, is introduced to enhance the bandwidth of the antenna. Microstrip antenna elements and feed lines are etched into the top segment of the third layer. The fourth layer is a directive structure used to increase the gain of the antenna array, which consists of 8x8 64-elements microstrip patches separated by air gap from the main body. This parasitic layer is supported by four rods fixed to the third layer. According to the results, the simulated center frequency of the proposed design is 2.61 GHz. The maximum gain simulated at 2.61 GHz is 12 dBi, and the measured impedance bandwidth is 14.27%. Additionally, in this study, the fabrication and measurements of the presented antenna were carried out to validate the simulation results. Comparisons between the simulation and measurement data show good agreement in the S11 parameter and radiation pattern graphs.
Keywords : Anten dizisi, yüksek kazanç, çok katman, U-yarık anten

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