Apple currently uses the Wi-Fi standard version 802.11n on its latest products. Offers maximal theoretical speed up to 450 Mbit/s in an open networkstore thanks to MIMO technology, which supports the transmission of data through several antennas at the same time, it enables significantly greater coverage in built-up areas. However, the arrival of HD movies and the ever-increasing speed of the Internet gives the mentioned Wi-Fi standard a lot of work, and it often happens that it simply cannot handle the transfer.
The new successor to the wireless standard, labeled 802.11ac, should solve all of the above problems. More efficient and sophisticated data transmission will be possible thanks to the frequency range of 80-160 Mhz, improved modulation and a larger number of antennas. Maxthe maximum theoretical speed will be over 1Gbit/s, i.e. about three times faster than the previous generation. Better reliability, stability and, above all, significantly lower consumption are also reported. Although the new standard has not yet been officially approved, Broadcom, the exclusive supplier of wireless computersonents for Apple, presented a new chip supporting 802.11ac at this year's CES.
Certification of the new Wi-Fi standard is expected in the second half of 2012. Therefore, it is assumed that Apple will not hesitate for long with the deployment of new chips supporting 802.11ac, and thus we could expect them, for example, already in Apple TV 3, AirPort Extreme, Mac OS products and possibly iZariadeniach, this year.
Source: appleinsider.com, 5gwifi.org
It says at the end of next year, so 2013 not 2012, am I right?
Apple in the past it used the 802.11n standard a year before official approval ... and the headlines on foreign websites are more than clear