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WiFi antennas


WiFi (or Wi-Fi) is wireless network technology, based on the IEEE 802.11 standard. WiFi technology is used for local area networking of devices and Internet access.

WiFi uses multiple parts of the IEEE 802 protocol family and is designed to seamlessly interwork with its wired sibling Ethernet. WiFi devices can network through wireless access points to each other as well as to wired devices and the Internet. The different versions of WiFi are specified by various IEEE 802.11 protocol standards, with the different radio technologies determining radio bands, maximum ranges, and speeds that may be achieved. WiFi most commonly uses the 2.4 gigahertz (120 mm) UHF and 5 gigahertz (60 mm) SHF ISM radio bands.

WiFi antenna is designed to receive signals for WiFi technology. WiFi antenna is primarily intended for households to connect with routers and modems, but we also offer variations for industrial areas and outdoor WiFi antennas. An access point compliant with either 802.11b or 802.11g, using the stock omnidirectional antenna might have a range of 100 m. The same radio with an external semi parabolic antenna (15 dB gain) with a similarly equipped receiver at the far end might have a range over 30 km.

Higher gain rating (dBi) indicates further deviation (generally toward the horizontal plane) from a theoretical, perfect isotropic radiator, and therefore the antenna can project or accept a usable signal further in particular directions, as compared to a similar output power on a more isotropic antenna. For example, an 8 dBi WiFi antenna used with a 100 mW driver has a similar horizontal range to a 6 dBi antenna being driven at 500 mW. Note that this assumes that radiation in the vertical plane is lost; this may not be the case in some situations, especially in large buildings or within a waveguide. In the above example, a directional waveguide could cause the low power 6 dBi antenna to project much further in a single direction than the 8 dBi antenna, which is not in a waveguide, even if they are both driven at 100 mW.

On connectors with detachable WiFi antennas, it is possible to improve range by fitting upgraded antennas that provide higher gain in particular directions. Outdoor ranges can be improved to many kilometres through the use of high gain directional antennas with the router and remote devices.

WiFi antenna could have multiple types of connectors and you can also choose the type and length of the cable. Antenna attachment can be magnetic, mounting, screwing, adhesive or soldering. We offer long range directional WiFi anntennas and also omni directional antennas.

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