nRF52 devkit antenna S11 measurements

[Scott]

Can you provide the S11 measurements for the nRF52 devkit trace antenna and the measurement point ZL or photo of the test setup ?

[Anders Strand]

Hello.

I do not have any measurements on the nRF52 DK, but i have some for the nRF51 DK. These are identical when it comes to the antenna. The measurement point is the pad of C15, which is where to antenna starts.

PCA10028 SWR.WMF

PCA10028 Smith.WMF

-Anders

[Scott]

Hi Anders, thank you for the prompt response. Both of these links point to the smith chart, can you provide the SWR?