Siemens SIMATIC RF660, Системное руководство

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RF600 system planning
4.2 Antenna configurations
RF600
System Manual, 09/2005 Edition, J31069 D0171-U001-A0-7618,
4-3
4.2.2 Possibilities and application areas for antenna configurations
Some basic antenna configurations and possible fields of application are shown below.
Antenna configuration 1: Description/ application areas
This arrangement of antennas is appropriate when the tags
to be read are only located on one side of the items to be
identified, e.g. when palettes are to be identified on which
the tags to be read must be on a prespecified side.
① Tag
Antenna configuration 2: Description/ application areas
Preferred application: In the identification of goods in
loading portals. The tag is located in the field of radiation of
two antennas; for reliable tag reading, the height of the tag
above floor level must therefore be known with reasonable
accuracy.
① Tag