Components Under RF Shield in nRF52840 Ref Layout

RE: Components Under RF Shield in nRF52840 Ref Layout

Kenneth — Thu, 21 Oct 2021 07:39:26 GMT

Hi,

If you are module manufacturer that are doing certification on a module, then you need to have shield, since it can be placed in any kind of design. While if you are making a design without a module, then the entire design will be tested towards radio regulations in any case, so there are no requirements to use a shield.

There are no performance improvements using a shield.

Kenneth

RE: Components Under RF Shield in nRF52840 Ref Layout

Mark J — Wed, 20 Oct 2021 19:07:40 GMT

HiKenneth,

Is an RF shield recommended, even if it's not used in the reference design? Most modules (e.g. Laird 451-0000x) use an RF shield.

Thanks,

Mark J

RE: Components Under RF Shield in nRF52840 Ref Layout

Kenneth — Wed, 20 Oct 2021 11:11:31 GMT

There is no RF shield used in any of the reference layouts. In general check out:
https://infocenter.nordicsemi.com/topic/ps_nrf52840/ref_circuitry.html#concept_hf5_hzm_fs

Best regards,
Kenneth