802.11ac also called 5G or Gigabit Wi-Fi is believed to be incorporated in the new technology of iPhone and iPad. This “Gigabit WiFi” is 3 times faster than the existing 802.11n wireless networks. The service will be added to new AirPort base stations, Time Capsule, Apple TV, notebooks and mobile devices.
The new 802.11ac standard achieves much faster wireless networking speeds than the existing 802.11n specification (in use on the latest Mac, AirPort and iOS devices) by using 2 to 4 times the frequency bandwidth (from 80 to 160MHz), more efficient data transfers through sophisticated modulation, and more antennas (up to 8; existing standards support up to 4, while Apple’s Macs currently use up to 3).
The rumor spread after Broadcom, key supplier for Apple, has announced a family of chips supporting 802.11ac Wi-Fi even if the specification for this technology has not been finished yet. Apple is also known for deploying un-finalized wireless technology as they did in the past when hurried to adopt 802.11n. Apple improved its AirPort Extreme and Time Capsule last summer by increasing their range and radio power output. They also added support for new Mac’s triple antennas and possibility to automatically use both 2.4 and 5GHz bands. Beside this, Apple also introduced multiple software applications and services based on WiFi networking like AirPlay, iTunes Wi-Fi sync, AirTunes wireless audio distribution , Mac OS X Leopard’s Time Machine and Apple TV.
All this facts lead to the supposition that Apple will adopt 802.11ac 5G Gigabit Wi-Fi as soon as possible.