Design of MIMO Antenna for Reduction of RCS Radar Cross Section with FSS Frequency Selective Surface

Abstract

xv newlineABSTRACT newlineThis study delves into the development and application of a MIMO antenna setup newlinecombined with a FSS to minimize RCS. The research seeks to understand how newlinecombining MIMO technology with FSS integration can improve stealth features of newlineantenna systems. Initially, the fundamental principles of MIMO antenna systems and newlinetheir relevance to RCS reduction are presented. The advantages of MIMO technology newlinein enhancing communication capacity and spatial diversity are discussed, highlighting newlineits potential for stealth applications when combined with RCS reduction techniques newlinesuch as FSS. Next, the function and attributes of FSS in regulating electromagnetic newlinewaves are clarified, highlighting its capability to control the reflection and transmission newlinebehaviors of antenna configurations. A thorough discussion of the integration of FSS newlinewith MIMO antennas is provided, covering design factors, the location of the FSS, and newlineoptimization techniques to reduce RCS while preserving MIMO performance metrics newlineThis presents an innovative method for improving isolation in FSS based put MIMO newlineantennas. The objective of this technology is to minimize the RCS of the MIMO newlineantenna system and improve isolation between antenna elements by substituting FSS newlinefor the conventional ground plane of monopole-based MIMO antennas. This presents newlinedifferent FSS software designs that display how changes in antenna characteristics can newlinelead to improvements in isolation and RCS reduction when FSS is incorporated. newlineThe proposed antenna, designed for wireless applications, is constructed on an FR4 newlinesubstrate. A compact MIMO antenna, tailored specifically for wireless use, is newlinemeticulously fabricated and simulated using HFSS, a leading full-wave newlineelectromagnetic (EM) field simulation platform. This research utilizes HFSS software newlinexvi newlineto create various types of MIMO antennas and study various antenna characteristics, newlinesuch as return loss and VSWR newlineExperimental validation of the simulated outcomes is conducted through prototype newlinefabrication and measurement. The fabricate