Millimeteraaltoprosessit

Millimeteraaltoprosessit refers to phenomena and technologies operating within the millimeter wave frequency spectrum. This part of the electromagnetic spectrum typically spans from 30 gigahertz to 300 gigahertz, corresponding to wavelengths from 1 millimeter to 10 millimeters. These frequencies are higher than those used for conventional radio and television broadcasting but lower than infrared light.

The short wavelengths of millimeter waves allow for the design of compact antennas and high-resolution imaging. This characteristic makes them suitable for applications requiring precise directional transmission and reception. Millimeter wave technology is employed in various fields, including radar systems, wireless communication, security screening, and scientific research. For instance, millimeter wave scanners are used at airports to detect concealed objects due to their ability to penetrate clothing but not solid materials.

In telecommunications, millimeter waves are being explored for next-generation wireless networks, such as 5G and future 6G, to provide higher bandwidth and faster data transfer rates. However, their propagation is more susceptible to atmospheric attenuation, especially from rain and fog, and they have a shorter range compared to lower frequency waves, requiring denser network infrastructure. Research continues to improve signal penetration and overcome these limitations for broader adoption.