Which wireless frequency band is commonly used for Wi-Fi communication?

The commonly used frequency bands for Wi-Fi communication are 2.4 GHz and 5 GHz. These two frequency ranges are part of the IEEE 802.11 standards that define how wireless communication should occur for local area networking.

The 2.4 GHz band offers a broader coverage area due to its longer wavelength, which can penetrate obstacles like walls better than higher frequencies. However, it is also more susceptible to interference, since many devices, such as microwaves and Bluetooth devices, operate in the same frequency range.

The 5 GHz band, on the other hand, provides higher data rates and is less congested, allowing for faster transmission speeds and less interference from other devices. However, its range is shorter, making it less effective at penetrating walls and obstacles.

Using both frequency bands in Wi-Fi routers provides flexibility, allowing users to choose the most suitable band for their requirements, whether they prioritize range or speed.