Radar systems operate across various frequency bands, with each band offering different advantages in terms of range, resolution, and penetration. Common radar frequency bands include X-band, S-band, and Ku-band. Higher-frequency bands like X-band offer better resolution, making them suitable for short-range detection, while lower-frequency bands such as S-band provide better range capabilities and perform well in heavy weather. The selection of radar frequency depends on the application and the type of radar system being used, balancing range, resolution, and environmental factors.