Reader Settings
UM2268
50/68
UM2268 Rev 6
4.3 Tuning
To control the carrier cancellation circuit (CCC), the GUI offers a dedicated tuning tab.
Figure 47. Reader Settings - Tuning tab
4.3.1
Tuning File panel
•
Tune antenna
: Activating the check box for Antenna 1 or Antenna 2 includes the
corresponding antenna in the tuning table creation, used for the CCC.
Note:
Add a 50
Ω
antenna or load to the antenna port selected here.
•
Tuning algorithm
–
Fast search
: This tuning algorithm seeks to find an optimized CCC setting (=
minimal reflected power). This algorithm starts at the current CCC setting and
modifies the tunable capacitors until a new setting with a lower reflected power is
found. The algorithm stops, when all new CCC settings, that are tested, lead to a
higher reflected power.
Note:
Although this algorithm does not get stuck at the first local minimum of reflected power it
encounters the focus lies on convergence speed. Therefore, this algorithm might not find
Содержание ST25RU3993
Страница 6: ...List of tables UM2268 6 68 UM2268 Rev 6 List of tables Table 1 Document revision history 66...
Страница 11: ...UM2268 Rev 6 11 68 UM2268 Quick start guide 65 Figure 7 Device manager Detected ST25RU3993 reader board...
Страница 32: ...Register map UM2268 32 68 UM2268 Rev 6 Figure 30 Register Map...
Страница 34: ...Reader Settings UM2268 34 68 UM2268 Rev 6 4 1 Settings tab Figure 31 Reader Settings Settings tab...
Страница 38: ...Reader Settings UM2268 38 68 UM2268 Rev 6 Figure 35 Channel list dialog...
Страница 43: ...UM2268 Rev 6 43 68 UM2268 Reader Settings 65 Figure 40 RX filter dialog Figure 41 Rx option panel...
Страница 47: ...UM2268 Rev 6 47 68 UM2268 Reader Settings 65 4 2 Diagnostics Figure 45 Reader Settings Diagnostics tab...
