Monolithic CMOS differential LNA with enhanced linearity

Details Monolithic CMOS differential LNA with enhanced linearity Monolithic CMOS differential LNA with enhanced linearity

2006-07-04

2006-07-04

Pascal, Robert (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

Reexamination Certificate

active

07071779

ABSTRACT:
A low noise amplifier (LNA) is provided for a first block of a wireless receiver in a wireless communication system using CMOS technology. The LNA includes a first cascode amplifying module and a second cascode amplifying module, where an output signal of the first cascode amplifying module is fed to the second cascode amplifying module in order to cancel third-order intermodulation frequencies (IM3), such that input-referred third-order intercept point (IIP3) is increased and thus linearity of the LNA is improved.

REFERENCES:
patent: 6639468 (2003-10-01), Belot
patent: 2005/0068106 (2005-03-01), Irvine

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