What is a common type of shipboard RADAR antenna?

The slotted array antenna is commonly used as a shipboard RADAR antenna due to its ability to provide a wide beamwidth and a relatively low profile. This type of antenna is particularly effective for RADAR applications because it can achieve directional radiation patterns while maintaining a compact size, which is advantageous in a maritime environment where space and height may be limited.

The design of a slotted array consists of a series of slots cut into a waveguide or a radiating element, allowing the antenna to produce the necessary directional signals crucial for RADAR operations. This feature enables shipboard RADAR systems to detect other vessels, navigate effectively, and avoid obstacles.

In contrast, while parabolic dishes are also used in some communication systems, they tend to be larger and less suitable for all shipboard applications due to their size and the need for precise pointing at targets. Yagi-Uda antennas, known for their use in television reception and certain communication applications, are less effective for the wide-range and detection capabilities required in shipboard RADAR systems. Whip antennas are mainly limited to omnidirectional communication and do not offer the focused beam required for RADAR functionalities. Thus, the slotted array stands out as the most suitable option for the specific requirements of shipboard