Design, analysis and comparison of the performance of 24 element swastik — Novell shaped microstrip patch antenna array

Abstract

The paper discusses, compares and presents the design of an 24 element microstrip patch antenna array consisting of 12×12 patch elements arranged in a Novell shape called Swastik for WiMax applications. The array of twelve by twelve patch elements with five Co-axial feed points with metallic body surrounding each patch and rectangular transmission medium connecting each patch based on inset feed impedance matching technique was designed and simulated using High Frequency Structural Simulator (HFSS) tool. The simulation result obtained from the tool was compared with the theoretical values which provides a good agreement between the simulated and theoretical results. The performance of the 24 element Swastik-shaped patch array was compared with various patterns\shapes of existing arrays in terms of return loss, directivity and gain. The result shows a good progressive performance than the existing patch antenna arrays.