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Bluetooth antenna matching circuit

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spid3rx

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Hello,

is there a design rule for bluetooth matching circuit, it is best to avoid low shunt capacitance value ? even if it makes the bluetooth antenna resonates at the intended 2.4GHz - 2.48GHz frequency. Someone told me try to avoid 1pF shunt lump smt cap.

anyone have this experience before?

thanks
 

I don't see any reason to don't use shunt capacitors in a 2.4GHz antenna matching, if the SRF of the capacitor is higher than the operating frequency (which 1pF SMD definitely it is).
 

ok. understood.
thanks for the input
 

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