GaAs 0.5 dB NF dual-loop negative-feedback broadband low-noise amplifier IC

A GaAs dual-loop negative-feedback low-noise amplifier (LNA) designed for the square kilometre array is presented. Effects of transformer non-idealities on LNA performance are discussed. The LNA has 0.5 dB noise figure and -10 dB input return loss from 0.6 to 1.6 GHz.

[1]  A. van Ardenne,et al.  Ramping up to the square kilometre array: a 1000m/sup 2/ aperture array prototype , 2004, 34th European Microwave Conference, 2004..

[2]  R. A. Hadaway,et al.  Monolithic transformers for silicon RF IC design , 1998, Proceedings of the 1998 Bipolar/BiCMOS Circuits and Technology Meeting (Cat. No.98CH36198).

[3]  E. H. Nordholt.  Classes and properties of multiloop negative-feedback amplifiers , 1981 .

[4]  C.J.M. Verhoeven,et al.  HF low noise amplifiers with integrated transformer feedback , 2002, 2002 IEEE International Symposium on Circuits and Systems. Proceedings (Cat. No.02CH37353).