Active electronically scanned array (AESA) refers to a technology utilized in the field of radar and communication systems. It is an advanced type of radar and antenna system that allows for a more efficient and agile electronic beam steering compared to traditional mechanically scanned arrays.
An AESA uses multiple transmit and receive modules, which are comprised of individual transmit and receive elements. These elements can be electronically controlled for the purpose of directing the radar beam in a desired direction. This electronic control eliminates the need for mechanically rotating the radar antenna, thereby enhancing its speed and agility.
Furthermore, an AESA system has the capability to transmit and receive multiple beams simultaneously. This attribute enables it to perform multiple functions simultaneously, including tracking targets, scanning for potential threats, and providing situational awareness.
In addition to its beam agility and multitasking capabilities, an AESA provides improved radar performance. Its electronic beam steering allows for quicker and more accurate detection, tracking, and identification of targets. It also enhances the radar's resistance to jamming and interference, as well as its ability to track and engage multiple targets in complex environments.
Overall, an AESA offers enhanced radar performance, flexibility, and operational capabilities compared to mechanically scanned arrays. It is widely used in various applications, including military aircraft, naval vessels, ground-based radars, and communication systems, contributing to improved surveillance and defense capabilities.
