Design and parametric analysis of an isolation based MIMO antenna with parasitic element using HFSS

The paper delves into Multiple Input Multiple Output (MIMO) technology, which stands as a prominent emphasis within modern wireless communication systems. It outlines the design of a 2x1 MIMO antenna employing isolation techniques, specifically Defected Ground Structure and Parasitic element, on a 32 mm x 20 mm FR4 substrate operating at 3.97 GHz. Furthermore, the research conducts a substrate analysis of Rogers RO3003 and Duroid, comparing their characteristics with FR4 to ascertain the most suitable substrate for a specific application. This evaluation encompasses various factors including return loss, gain, bandwidth, cost, and fabrication complexity.