SIEMENS
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Siemens IK PI · 2015
Industrial Wireless Communication
IWLAN – Accessories
IWLAN antennas
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Overview
Remote antennas increase the reliability of wireless links by
optimizing the receiving and emission of signals.
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Use in Industrial Wireless LAN (IWLAN) and WLAN in
accordance with IEEE 802.11 at 2.4 GHz and 5 GHz with
transmission rates of up to 450 Mbit/s
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Coordinated range of antennas for the most diverse applica-
tions both indoors and outdoors
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Antennas with two (dual-slant) or three (MIMO) connections
for increased data throughput and increased reliability of the
wireless connection thanks to selective use of multiple path
propagation
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Suitable for use in hazardous areas (Zone 2); no special
approvals necessary
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Benefits
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Investment protection thanks to compliance with the globally
recognized standard IEEE 802.11 and – depending on the
version – suitability for 2.4 GHz and/or 5 GHz
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Cost-effective connection to devices in remote, difficult-to-
access, or hostile environments
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Establishment of a reliable IWLAN wireless infrastructure
through the use of remote antennas, even if the access points
and client modules are installed in the cabinet, for example
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Application
Separate antennas optimize the transmission and receiving
conditions and support the use of IWLAN products in a number
of industrial applications.
With sector antennas, for example, conveyor lines or corridors
can be specifically covered with radio links, or strongly
directional antennas can be used to implement point-to-point
connections over distances of up to several 1 000 meters.
Alternatively, an omnidirectional antenna concentrates the radio
field around the antenna in the shape of a disc, which enhances
the quality of the connection.
Antennas with two or three connections enable transmission of
the two to three streams usual with IEEE 802.11n, using just one
antenna. They are available both with omnidirectional and
directional characteristics.
Application examples:
Omnidirectional antennas
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Coverage of an area which has at its center a pole for
mounting the antenna
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Installation of the antenna on the roof in the case of automated
guided vehicle systems for reliable data exchange with the
vehicles
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Wide-area coverage of a production cell or robot station
Sector antennas
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Selective coverage of warehouse/high-bay warehouse aisles
with the help of a wide-angle antenna prevents interference
with neighboring wireless fields
Directional antennas
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Communication between buildings over long distances with
the help of an antenna with narrow opening angle and high
gain
© Siemens AG 2014