Embodiments of the present invention include circuits for use in wireless
receivers that provide wide band matching with improved gain and noise
performance. In one embodiment, the present invention includes a wireless
receiver comprising an antenna, a first transistor having a source
coupled to the antenna, a second transistor having a gate coupled to the
antenna and a network comprising a first terminal coupled to the antenna,
a second terminal coupled to the source of the first transistor and a
third terminal coupled to the gate of the second transistor, wherein the
network has a transimpedance between the second and third terminals so
that noise generated by the first transistor is differentially rejected
by the system across a predetermined range of frequencies.