4-3 Influence of Tag Angle
The maximum communications range between the Antenna and Tag will be available if the face of the Antenna and the face of the Tag are parallel to each other. The communications range will be reduced if the Tag is mounted at an angle. Take the angle of the Tag into consideration when mounting.
For reference, the relationship between the Tag angle and the communications range is illustrated in the graph below. The horizontal axis represents the angle between the face of the Antenna and the Tag with 0° representing the state where the faces are parallel. The vertical axis represents the relative communications range from when the angle is 0° and the communications range is 100% (i.e., the percentage reduction in communications range).
•Communications Range vs. Tag Angle
Test Setup
Center of Antenna coil
Tag
θ
Antenna