I'm using the TRF7962A on my PCB with the recommended 1.5uH inductor antenna + RLC network.
It works well with tiny 0805-sized tags at 0.3", but drops out after that.
To get more range I'd like to use the FXR.05.A, a larger 15.9uH antenna.
I used the equations provided in slou372a with Q=20 to calculate Cres=8.7pF, Rpar= 27.4K.
I downloaded Smith v3.1 but it won't allow me to add the RLC network until I chose a point on the chart.
Can someone please explain how to use this tool or provide a TI Smith file? Or give equations for the matching capacitors?