10.5 Footprint WE-FP-4+
1
6
B1
7
10
11
15
B4
6,0
1,2
3,
6
1,
2
4,8
1,2
0,7
q
no metal area
1,
7
0,
7
1,2
0,7
5,
0
12,
5
3,5
12,5
Figure 20: Footprint WE-FP-4+ [mm]
10.6 Antenna free area
To avoid influence and mismatching of the antenna the recommended free area around the
antenna should be maintained. As rule of thumb a minimum distance of metal parts to the
antenna of
λ
/10 should be kept (see figure
). Even though metal parts would influence
the characteristic of the antenna, but the direct influence and matching keep an acceptable
level.
Ophelia-I reference manual version 1.0
© January 2022
www.we-online.com/wireless-connectivity
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