If we make the line width wider, we have to make the dielectric thicker to preserve the 50 Ohms, and this keeps the loop inductance the same. For example, a 50 Ohm line 2 inches long has a total loop ...

If we make the line width wider, we have to make the dielectric thicker to preserve the 50 Ohms, and this keeps the capacitance the same. For example, a 50 Ohm line 2 inches long has a capacitance of ...