volume | PIER Journals

Abstract

This article presents the design and implementation of a beam-steering antenna array using a 4x4 Butler matrix feed network (BMN) for 5G applications. The proposed antenna array can achieve a gain of 14 dBi and a steering range of (+16º, -47º, +46.5º, -15.7º) to cover angular range extending from 45º to 135º. To achieve that, a simple, 4x4 Butler matrix etched on a single-layer microstrip structure is designed, optimized, and fabricated. The proposed design incorporates phase shifters, 3-dB couplers, and cross-over couplers. The proposed matrix is employed as a feeding network for 4-element wideband LPDA antenna array. The fabrication results of the feeding matrix and antenna array show very good agreement with the simulated results.

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Dr. Rania Eid A. Shehata

Dr. Moataza Hindy

Prof. Hamdi Elmekati

Dr. Ayman Mohamed Fekry Elboushi