Reference Manual

Table Of Contents
19.4 Footprint
1
8
B1
9
12
13
18
B3
B6
no metall
6,0
4,23 1,9
1,2
8,4
0,8
12,5
12,5
1,2
6,0
0,5
9,0
3,6
1,5
Figure 33: Footprint [mm]
19.5 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
33
). Even though metal parts would influence
the characteristic of the antenna, but the direct influence and matching keep an acceptable
level.
Proteus-III reference manual version 0.11 © November 2019
www.we-online.com/wireless-connectivity 201