NB-IoT Module Series
BC66&BC660K-GL Compatible Design
BC66&BC660K-GL_Compatible_Design 25 / 30
4.10. RF Antenna Interface
BC660K-GL’s antenna interface ANT_RF is compatible with BC66’s antenna interface RF_ANT. The
impedance of the antenna interfaces is 50 Ω.
For better RF performance, it is recommended to reserve a π-type matching circuit (R1/C1/C2) close to
the antenna. By default, the capacitors (C1/C2) are not mounted while the 0 Ω resistor R1 is mounted. A
reference design for RF antenna interface is shown as below.
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