6G terahertz communication

  Terahertz (THz) band is between millimeter wave and infrared light. Due to its large communication bandwidth, it is considered to be an important technical alternative to realize TBPs communication rate. At the same time, THz's high-frequency points make it have millimeter or even submillimeter wavelengths, which can be applied in small volume handheld or wearable devices to realize functions including high-precision positioning, high-resolution 3D imaging and mass spectrometry analysis of materials. Compared with optical cameras, THz can penetrate some obstructions, realize high-precision imaging and all-weather perception in non visual scenes, and is easier to protect privacy. Therefore, terahertz band can be applied to many life and production in the future, such as daily non-invasive health, food safety detection, high-precision manufacturing defect detection, environmental pollution monitoring, and machine vision assistance, which makes terahertz one of the important technical means of synaesthesia in the future.