Siemens SIMATIC RF640A Bedienungsanleitung Seite 27

Directional radiation pattern in the FCC frequency band
Polarization axis and axis of symmetry are parallel
In the following directional radiation pattern of the antenna, the axis of symmetry of the antenna and the polarization axis of
the transponder are parallel.
Pattern of the vertical plane of the antenna
Pattern of the horizontal plane of the antenna
Figure 6 The RF640A directional radiation pattern in the FCC frequency band, polarization axis of the transponder, and
axis of symmetry of the antenna are parallel to each other
SIMATIC RF640A
J31069-D0225-U001-A1-7618, 11/2010
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