SmithChartPart3Sheet 1 of 5Smith Chart Tutorial Part 3 - Lumped Matching For lower frequency circuits, lumped elements are normally used instead of transmission lines. The rules governing series and shunt capacitors and inductors were given in part 1. There are two ways to begin matching (1) From the 50-ohm load to the match and (2) From the match to the 50-ohm load. (1) 50-ohm load to the match For this example we will design a lumped matching circuit to match 50 ohms to the optimum noise match of a FET. In other words we want to present a particular match to the FET in order to ensure minimum noise. Lets assume that the data sheet or CAD yields a optimum noise match of 3 + j2.0 (normalised to 50-ohms). There are many possible solutions but it is easiest to start with a series inductor. We start at 5……