Conjoint Coupling Lessening in Multiband MIMO Antenna Using Cross-Slot Fractal Multiband EBG in the E-Plane

Abstract

In this paper, provided a technical description of a research study involving the design and implementation of a multiband electromagnetic band gap (EBG) structure and a multiband multiple-input and multiple-output (MIMO) antenna for mutual coupling reduction. Here's a brief explanation of the terms and concepts used in the description. Electromagnetic band gap (EBG) structure is periodic structure made of dielectric or metallic materials that act as a filter for electromagnetic waves. It has the ability to prohibit the propagation of certain frequencies at 5.7 GHz, 7.5 GHz, and 10 GHz frequencies. and allows others to pass through. Multiband EBG structure: An EBG structure that can filter multiple frequencies simultaneously. MIMO antenna of that uses multiple antennas at the transmitter and receiver to improve the communication performance. It allows for multiple data streams to be transmitted and received simultaneously, which increases the data rate and reliability of the communication system. Mutual coupling: A phenomenon that occurs when the electromagnetic fields of two antennas interfere with each other, leading to degradation in communication performance. Envelope correlation coefficient: A metric used to measure the similarity of the signals received by two antennas in a MIMO system. It indicates how correlated or independent the signals are. Channel capacity loss: A measure of the reduction in the maximum achievable data rate due to the presence of mutual coupling in a MIMO system.