K Band operates at how many gigahertz?

The K Band is part of the microwave portion of the electromagnetic spectrum, specifically defined within the frequency range of approximately 18 to 26.5 GHz. Within this range, various specific frequencies are designated for different applications. The option chosen, which is 24.150 GHz, falls well within the most commonly used segment of the K Band, particularly for applications such as automotive radar systems, which often operate around this frequency. This frequency is optimal for use in both short-range and long-range radar applications due to its balance between range and resolution capabilities.

The ranges provided by the other options fall outside of the standard definitions or are not typically associated with the common applications found in the K Band. For instance, while 20.175 GHz and 22.150 GHz are within the broader microwave spectrum, they do not represent the frequency widely referenced as part of the K Band applicable to radar technology. The higher frequency at 26.300 GHz does extend into the K Band but is closer to the boundary with the higher frequency bands, where different characteristics and applications may apply.