Why is higher frequency preferred on radar?

High-frequency signals suffer more attenuation than low- and mid-frequency signals . Frequency also has an impact on the radar device antenna’s beam width and beam angle. High-frequency signals can enable small beam angles using small antennas.9 Şub 2017

Radar uses radio waves which are electromagnetic waves and travel at a speed of 300,000,000 m/s.

HFR technology can be found in a wide range of applications: for marine safety, oil spill response, tsunami warning, pollution assessment, coastal zone management, tracking environmental change, numerical model simulation of 3-dimensional circulation, and research to generate new understanding of coastal ocean dynamics …

Most radars, in practice, operate between 400 MHz to 36 GHz ; however, there are some notable exceptions. The optical and radio portions of the electromagnetic spectrum occupy positions coincidental with two important transparent bands in the Earth’s atmosphere and ionosphere.