The main goal of this thesis is to improve the performance of radar systems by utilizing metamaterials to enhance the performance of their component parts, enabling them to detect camouflaged targets. Our work focuses on using metamaterials to improve the performance of the radar system's most important component, the antenna. We propose using metamaterials to enable the antenna to operate at multiple frequencies, creating an agile frequency antenna or antennas with adjustable frequencies. This will enhance the system's ability to detect camouflaged targets, as camouflage typically works at...