3 Replies Latest reply on Oct 22, 2017 9:49 AM by AlAl_1520441

    Weak Antenna Signal Strength in PSOC4 BLE




      Recently, I've designed a couple of boards based on psoc4 reference design provided in "CY8CKIT-142 PSoC 4 BLE Module Schematic" and AN91445 documents. The bluetooth signal strength is significantly low as it  measured around -80db in a distance approximately 20cm.

      There are couple of things that I'm not sure  which affected the signal mostly. First, the thickness of the broad's layers which I'm not sure that the company really fabricated correctly. in the meantime, I don't know the exact thickness for the copper layers.

      Second, in the matching network which I attached it here (wire thickness is 0.2mm).


      If anyone knows the problem or if there is another thing that i didn't care about it, please let me know it.