Why can't millimeter waves travel far [closed]

1. How far do millimeter waves travel?
2. Why is mmWave short range?
3. What is the main drawback of using millimeter waves?
4. What blocks millimeter waves?

How far do millimeter waves travel?

A Closer Look at the Millimeter Wave Spectrum

Because of its high frequencies, mmWave has a limited range of only 300 to 500 feet and struggles to penetrate buildings. By contrast, 3G and 4G networks are able to travel further and better penetrate building materials.

Why is mmWave short range?

Millimeter waves are absorbed by gases and moisture in the atmosphere, which reduces the range and strength of the waves.

What is the main drawback of using millimeter waves?

Disadvantages of Millimeter Wave

Higher costs in manufacturing of greater precision hardware due to components with smaller size. It may result in lower sensitivity in a receiving system due to the lesser energy collected by the smaller size antenna. At extremely high frequencies, there is significant attenuation.

What blocks millimeter waves?

Millimeter waves propagate solely by line-of-sight paths. They are not reflected by the ionosphere nor do they travel along the Earth as ground waves as lower frequency radio waves do. At typical power densities they are blocked by building walls and suffer significant attenuation passing through foliage.