Sectorized antennas and Antenna arrays
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Sectorized antennas and Antenna arrays
- Sector antennas are a special type of high-gain, semidirectional antenna that provides a pie-shaped coverage pattern.
- These antennas are typically installed in the middle of the area where RF coverage is desired and placed back to back with other sector antennas.
- Individually, each antenna services its own piece of the pie, but as a group, all of the pie pieces fit together and provide omnidirectional coverage for the entire area.
- Combining multiple sector antennas to provide 360 degrees of horizontal coverage, as shown in Figure 4.14, is known as a sectorized array.
- Unlike other semidirectional antennas, a sector antenna generates very little RF signal behind the antenna (back lobe) and therefore does not interfere with the other sector antennas that it is working with.
- Capability for all the antennas to be transmitting at the same time, providing much greater throughput
Sectorized array
Reference:
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
Coleman, David D.,Westcott, David A. CWNA: Certified Wireless Network Administrator Official Study Guide: Exam CWNA-106 Wiley.
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