A novel matrix-based lumped-element analysis method for CMOS distributed amplifiers

This paper presents a novel matrix-based lumped-element theoretical analysis of CMOS distributed amplifiers that employ the image impedance technique for the input/output terminating networks. The design of distributed amplifiers can be more efficient in CMOS technology by using lumped-element modeling of the distributed amplifiers rather than the one commonly used for microwave distributed amplifiers that is based on transmission line parameters. The simulation results clearly indicate an improved voltage gain and a better gain uniformity over the bandwidth of the proposed amplifier design. Moreover, this matrix-based lumped-element method is suitable for analysis of any distributed amplifier with an arbitrary terminating network.