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Other Antennas

Many other types of antennas exist and new ones are created following the advances in technology.

Sector or Sectorial Antennas: they are widely used in cellular telephony infrastructure and are usually built adding a reflective plate to one or more phased dipoles. Their horizontal beamwidth can be as wide as 180 degrees, or as narrow as 60 degrees, while the vertical is usually much narrower. Composite antennas can be built with many Sectors to cover a wider horizontal range (multisectorial antenna).

Panel or Patch Antennas: they are solid flat panels used for indoor coverage, with a gain up to 20 dB.

Last Update: 2007-01-13