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June 3, 2010
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identiCLASS Developer Tool Kit User Guide
7.5
Antennas
The antennas for the identiCLASS readers are
“air-tuned”.
This means that the antenna is pre-tuned for open air conditions (for example, not near metal).
When an air-tuned antenna is placed near metal, its tuning is affected causing it to perform with
a slightly smaller read range. More importantly, communication errors become more frequent
when large data transfers are involved.
7.5.1
Antenna Model ID1
Figure 7-5
– ID1 Antenna