A 60 GHz Compact Butler Matrix Network Design

This work presents an optimal design of a 4x4 Butler Matrix (BM), which serves as key component in an antenna system designed for 5G applications operating at 60 GHz. The design is developed using the Advanced Design System (ADS) software provided by Keysight Technologies. The proposed design is implemented on Rogers (RO3003), characterized by loss tangent and dielectric constant of 0.001 and 3, respectively. The Butler 4x4 matrix configuration uses 4 input ports, which allows 4 homogeneous orthogonal beams to be generated at specific angles. The design aims to enhance the beamforming capabilities and overall performance of a smart antenna system, contributing to the advancement of 5G wireless communication technologies.