The answer is as follows: 990 5G is a 5G commercial base station product launched by Huawei, and its working band is 3.3GHz-3.8GHz. According to the relationship between frequency and wavelength, we can calculate its wavelength by the following formula:
Wavelength = speed\/frequency
Where, the speed of light is 299,792,458 m\/s, converting the frequency to Hertz (Hz) is:
频率= 3.3 ghz = 3.3 x 10^9 Hz
Plug the above values into the formula to calculate the wavelength:
Wavelength = 299,792,458 \/ (3.3 x 10^9) ≈ 0.0909 m ≈ 90.9 mm
Therefore, the wavelength of 990 5G is about 90.9 mm, which is about 90,900 nanometers.