A 3-11GHz current-reuse low noise amplifier for ultra-wideband recievers

3‐5 GHz multifinger CMOS LNA using a simultaneous noise and impedance matching technique by a significant reduction of broadband impedance variation of metal–oxide–semiconductor field effect transistor

“…A highly efficient LNA means to satisfy a stringent trade‐off among the LNA characteristics namely impedance matching, noise figure (NF), forward gain ( S 21 ), power consumption and linearity [2, 3]. Fulfilling these parameters within the ultrawideband (UWB) spectrum is more challenging than the case of the narrow band [4, 5]. The trade‐off between NF and input matching ( S 11 ) enforces a major restriction on the design of LNA for UWB applications.…”