Complex sentence: This configuration is used less often than the common source or source follower, but is useful in CMOS RF receivers, especially when pushing the frequency limitations of the FETs, because of the ease of impedance matching and potentially lower noise.
Split into simpler sentences: This configuration is used less often than the common source or source follower. It is useful in, for example, CMOS RF receivers, especially when operating near the frequency limitations of the FETs; it is desirable because of the ease of impedance matching and potentially has lower noise.