ST STEVAL-ST25R3916B - Antenna and Matching Network Components; Figure 7. STEVAL-25 R3916 B Expansion Board Layout (Top View); Figure 8. STEVAL-25 R3916 B Expansion Board Layout (Bottom View)

Figure 7. STEVAL-25R3916B expansion board layout (top view)
1. RF front-end area
2. ST25R3916B
3. RF powering selection switch (3.3 or 5 V)
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Figure 8. STEVAL-25R3916B expansion board layout (bottom view)
2.2.1 Antenna and matching network components
This board contains the matching network and the automatic antenna tuning capacitors based on varicap.
UM3033
Expansion board hardware
UM3033 - Rev 1
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