Low-noise and power amplifiers commonly use inductive degeneration to match
the inherently capacitive MOS device to the source impedance R-S. It is sh
own how this matching technique can be refined by incorporating the nonquas
istatic effect and further improved so as to strongly increase the gain. It
is shown that the maximum gain is achieved by matching the source impedanc
e R-S to the intrinsic gate resistance embodying the non-quasistatic effect
.