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XT65/XT75 Hardware Interface Description
5.2 Antenna Pad
Antenna connected to Hirose connector:
Antenna connected to pad:
Figure 40: Never use antenna connector and antenna pad at the same time
5.2
Antenna Pad
The antenna can be soldered to the pad, or attached via contact springs. For proper grounding connect the
antenna to the ground plane on the bottom of XT65/XT75 which must be connected to the ground plane of the
application.
If you decide to use the antenna pad take into account that the pad has not been intended as antenna reference
point (ARP) for the Siemens XT65/XT75 type approval. The antenna pad is provided only as an alternative option
which can be used, for example, if the recommended Hirose connection does not fit into your antenna design.
Please ensure that the antenna pad does not come into contact with the holding device or any other components
of the host application. It needs to be surrounded by a restricted area filled with air, which must also be reserved
0.8mm in height.
Figure 40: Restricted area around antenna pad
XT65_XT75_HD_v01.001
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2007-1-8