Version: 1.0, September 19, 2002
4 – APPLICATION INFORMATION
4.6.3 Example
2.
Rpow
5
4
3
2
1
0
1
2
3
4
5
0
1
2
3
4
5
6
7
8
9
10
90
90
100
100
100
110
110
110
110
110
120
120
120
120
120
120
120
130
130
130
130
130
130
140
140
140
140
140
150
150
150
160
160
170
170
180
180
190
190
Received power : -100 dBm minimum
Parameter
Value
R-height
3
D-angle
45
°
A-angle
0
°
L-height
1
L-angle
90
°
By placing the reader on a height of 3
meters and not adjusting the vertical angle
of the label, we see a strong reduction in
the detection area.
4.6.4 Example
3.
Rpow
5
4
3
2
1
0
1
2
3
4
5
0
1
2
3
4
5
6
7
8
9
10
80
80
90
90
90
100
100
100
100
110
110
110
110
110
120
120
120
120
120
120
120
130
130
130
130
130
140
140
140
140
150
150
160
160
Received power : -100 dBm minimum
Parameter
Value
R-height
3
D-angle
45
°
A-angle
0
°
L-height
1
L-angle
45
°
By letting the label look up 45
°
the
detection area increases. Due to the
reader D-angle of 45
°
at a height of 3
meters and a label height of 1 meter the
maximum of energy is approximately 2
meters before the reader. This maximum
could be placed much further out to
improve the detection area.
© NEDAP IDEAS – AVI
P.O. Box 103, NL-7140 AC GROENLO
Page 35-41
