Serpent-Configured Quad-Port MIMO Antenna with Dual-Band Operation and Defected Substrate-Ground Structure for Millimeter-Wave Systems

The article delves into the development of a serpent-configured quad-port MIMO antenna designed for dual-band operation at 28 GHz and 38 GHz, crucial for 5G millimeter-wave systems. The design incorporates innovative defected ground and substrate structures to achieve high gain, superior isolation, and efficient beamforming capabilities. Through rigorous parametric analysis and optimization, the antenna demonstrates significant improvements in performance metrics such as return loss, isolation, and gain. The study also compares the proposed design with existing state-of-the-art antennas, highlighting its advantages in terms of compactness, high isolation, and dual-band functionality. The article concludes with a comprehensive evaluation of the antenna's performance, including measurements and simulations, validating its suitability for modern 5G applications.