my last design i did using Nordic nRF52840 which had a BLE on it. Wanted to use the smith chart, but

my last design i did using Nordic nRF52840 which had a BLE on it. Wanted to use the smith chart, but found it a little bit difficult, but was recommended to use VNA device instead for my antenna tuning it get my desired value. So i dont actually use them in my design, but its helpful to a certain point.
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