5GHz: 4.9~6.0GHz Antennas
5.1 to 5.8 GHz Frequency Band
The 5GHz frequency band is an unlicensed ISM spectrum commonly used as an alternative to the higher frequency 2.4GHz frequency. This band comprises of 4 RF bands; 5.1, 5.3, 5.4 and 5.8GHz, resulting in 24 non-overlapping channels separated by 20MHz. The channels can potentially be used on a single wireless system without the risk of interference. The WiFi standard 802.11ac operates in the 5GHz band, and therefore has less interference than the previous standards 802.11n, etc.
- See Legal and Illegal channels within the 5.1-5.8 Frequency Band.
- Summary comparison of 5.1-5.8 GHz, 2.4 GHz and 900 MHz bands.
The 5GHz band offers shorter range coverage but at higher data rate than 2.4GHz (2400MHz) frequency band. It has less penetrating power through physical objects like walls compared to 2.4GHz.
5.1 to 5.8GHz frequency bands are used in fast data rates applications. And where the more popular 2.4GHz frequency applications cause severe interference, an alternative frequency is needed for low noise transmission. 5GHz frequencies are commonly used in WiFi and W-Lan applications that use a dual frequency router that is able to switch between 5GHz and 2.4GHz networks.
Common applications of 5GHz frequency band include:
- 5.8GHz ISM applications
- Network access points
- Radio local area networks
- WiFi and Wireless LAN applications
- WiMAX networks
- Wireless audio and video systems.
Local regulations and restrictions on the use of this frequency may change depending on the region or country.