RFID UHF antennas
10
4.3 Selectivity
The high selectivity of the low-range antennas opens up a number of new UHF
RFID applications that could not be implemented previously� Both versions can
individually read tags with distances of partly less than 5 cm� They are therefore
the ideal antennas for item level tagging applications�
Figure: Low-range antenna reads tag at short
distance
Figure: Reading range and selectivity
Illustration
4.4 Selectivity and reading range of the low-range antennas
The table below lists the selectivity and reading ranges of the ultra-low-range and
low-range antennas�
Tag type
ANT805 ultra-low range
ANT810/ANT910 low range
Selectivity
Reading range
Selectivity
Reading range
Loop-shaped
3 cm
2 cm
4 cm
4 cm
Hybrid-type
7 cm
5 cm
-
-
Dipole-type
10 cm
8 cm
-
-
Figure: Selectivity and reading range of ANT805 / ANT810 / ANT910
5 Conformity with standards
Since the RFID systems are radio systems, they are in the scope of the 1999/5/EC
guideline of the European Commission (Radio and Telecommunications Terminal
Equipment R&TTE)�
Selectivity
Reading range
Summary of Contents for ANT805
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