DC blocking cap with nRF52840 and PIFA

[Maxwell1864]

Hello,

Do I have to include a DC blocking capacitor with nRF52840 if I use a PIFA antenna? Can you point me to some documentation (i.e., reference design) that would include capacitance value as well?

Thank you.

[Maxwell1864]

Hi Priyanka,

Thank you for your answer. I am using a matching network. Nevertheless, I was more concerned about DC component being shorted to ground by the antenna configuration. I found out that output stage of the radio is transformer coupled so there is no DC component on the ANT ball. Hence I don't need a DC choke.

Thank you.