mmWave
Millimeter wave (mmWave) refers to radio frequencies between 24 and 100 GHz, characterized by short wavelengths (1–10 mm). In 5G, mmWave enables high-capacity urban hotspots with speeds exceeding 1 Gbps. The trade-off is limited range (~200 m) and poor building penetration. 6G will extend into higher mmWave bands with improved beamforming.
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Related terms explained
Sub-terahertz frequencies (100–300 GHz) are candidate bands for 6G and 7G networks. They offer massive bandwidth — up to 10 GHz per channel — enabling multi-gigabit wireless links
Beamforming is a signal processing technique that uses multiple antenna elements to focus radio signals in specific directions rather than broadcasting omnidirectionally. It is essential at mmWave and terahertz frequencies where signals are highly directional