What is the 5g band combiner? The 5g band combiner is an electromagnetic wave with a wavelength (λ) of approximately 1 millimeter (1 to 10 millimeters, to be exact). Its formula f = c /λ converts this wavelength into a frequency, where c is the speed of light (3 x 10 8 m/s), resulting in a frequency range of 30-300 GHz. The 5g band combiner band is designated as an "extremely High...