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Choosing the right antenna
The first step to building a wireless network is choosing the correct antenna for your application. Coverage and range
will be the driving factors. Aesthetics may also be important. There are several styles of WiFi antennas with different
radiation patterns, polarization schemes, and mounting options.
Omni directional Antennas
Omni directional antennas provide a 360
in indoor and outdoor wireless applications. An analogy for the radiation pattern would be how an un-shaded
incandescent light bulb illuminates a room. A high gain Omni's vertical radiation pattern will exhibit a flattened donut
shape as shown below for the HG2415U-PRO antenna. Typical applications for Omni directional antennas include indoor
office spaces, retail stores, warehouses, small office or home networks, outdoor cafés, campgrounds, RV parks and
marinas. Examples of Omni directional antennas include the common "Rubber Duck" found on many WiFi access points
and routers as well as the complicated antenna arrays used on cellular towers.
o
donut shaped radiation pattern to provide the widest possible signal coverage
Typical Omni directional antenna radiation pattern (HG2415U-PRO)
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