WiFi antenna is the key component in a WiFi network. In order to understand WiFi, we have to mention IEEE 802.11, which is a set of standards for implementing Wireless Local Area Network (WLAN) computer communication in the 2.4, 3.6 and 5GHz frequency bands. These standards provide the basis for WiFi wireless networks. Ironically, WiFi has become the branded product extension of the IEEE 802.11 wireless standard.
The WiFi Alliance is a global non-profit industry association of hundreds of leading companies devoted to the proliferation of Wi-Fi technology across devices and market segments. With technology development, market building, and regulatory programs, the WiFi Alliance has enabled widespread adoption of WiFi worldwide. Some research shows WiFi is used by over 700 million people, there are over 4 million hotspots around the world, and about 800 million new WiFi devices every year.
The segment of the radio frequency spectrum used by 802.11 varies between countries. 802.11b and 802.11g use the 2.4GHz ISM band, operating in the United States under Part 15 of the US Federal Communications Commission Rules and Regulations. 802.11a uses the 5GHz U-NII band, which, for much of the world, offers at least 23 non-overlapping channels rather than the 2.4GHz ISM frequency band, where all channels overlap. 802.11n is an amendment which improves upon the previous 802.11 standards by adding Multiple-Input Multiple-Output antennas (MIMO). 802.11n operates on both the 2.4GHz and the lesser used 5GHz bands.
Based on the introduction above, you have to choose WiFi antennas according to the frequency range you want, 2.4GHz, 5GHz or both. Kenbotong, a leading antenna manufacturer in China, produces all frequency range WiFi antennas for both directional and omnidirectional. For each frequency range, they have Yagi, Parabolic, Panel, Mobile, Terminal, Helical, Wall or Ceiling mount and Backfire antennas.
For example, TDJ-2400BKE is a small size but superior performance 2.4GHz wall mount antenna:
KBT: TDJ-2400BKE
TDJ-5158BKC45 is another example in the 5GHz category (5100-5850MHz), 16dBi gain, strong corrosion resistance:
KBT: TDJ-5158BKC45
TQJ-2458D5 is an example for both 2.4GHz and 5GHz dual band antenna, supporting IEEE802.11n:
KBT: TQJ-2458D5
The above are only examples from Kenbotong WiFi antennas. For more details, please browser related folders for different frequencies or contact us for help: jack@kbtusa.com