Microstrip antennas are a type of antenna that consists of a thin metallic patch mounted on a dielectric substrate. They are popular due to their low profile, lightweight design, and ease of fabrication. These antennas can be easily integrated into circuit boards, making them suitable for various applications, including mobile devices and satellite communications. The performance of microstrip antennas can be influenced by factors such as the size and shape of the patch, the dielectric material used, and the feeding technique. Common feeding methods include coaxial cables and microstrip lines, which help to efficiently transmit signals to the antenna.