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Is it necessary to add a ceramic filter on NRF52832 antenna port for bluetooth certification(BQB)

we are using NRF52832 for a project  design, I am a bit of  afraid of BQB certification,  I think  add a such like Johanson 2450FM070029 ceramic filter in front of antenna, ( PCB antenna) . it should  have   a big improving on the harmonics and suppression of  RF interference . but seems nobody to do so. any suggestion?

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