Frequency ranges for automotive radar technology

Use cases have a large influence on the frequency range used.

automobile in test chamber

Radar is described as the ability to identify radio waves to determine the range, angle and relative velocity of objects. In modern vehicle safety systems, radar is used in conjunction with cameras, ultrasound and other sensors to obtain information about the environment of a vehicle.

There are three main types of radar technology used, which differ mainly in distance of the measurement range:

  • “short range radar” (SRR): a maximum measurement range of up to approx. 30 m
  • “mid-range radar” (MRR): a maximum measurement range of up to approx. 150 m
  • “long range radar” (LRR): a maximum measurement range of up to approx. 250 m

The specifications and the associated use cases are also assigned to different frequency ranges in which radar technology can be used:

Frequency range Use cases (examples) Classification
24.05 GHz – 24.25 GHz Distance warning MRR
Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance MRR
24.25 GHz – 26.65 GHz (UWB) – phased out by 2022 Stop-and-Go system SRR
Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance SRR
76 GHz – 77 GHz Adaptive cruise control LRR
Front cross traffic alert MRR
Blind-spot detection, lane change assistance, rear cross traffic alert, precrash rear, exit assistance MRR
77 GHz – 81 GHz Not fully regulated yet.

Further information on regulation and our radar services can be found under “Automotive radar testing“.

In case of any questions, feel free to get in touch with us directly: https://www.cetecom.com/en/contact/