El-Khatib Ziad, MacEachern Leonard, Mahmoud Samy A. Distributed CMOS Bidirectional Amplifiers: Broadbanding and Linearization Techniques

Springer, 2012. — 134 p.This book is about a fully-integrated fully-differential linearized CMOS distributed bidirectional amplifier that achieves large IMD3 distortion reduction over broadband frequency range for both RF paths. The proposed linearized bidirectional DA has the drain and gate transmission-lines staggercompensated.
Reducing the DA IM3 distortion by mismatching the gate and drain LC delay-line ladders. The proposed fully-differential linearized DA employs a cross-coupled compensator transconductor to enhance the linearity of the DA gain cell with a nonlinear drain capacitance compensator for wider linearization
bandwidth. The proposed linearized CMOS bidirectional DA achieves a measured IM3 distortion reduction of 20 dB with frequency of operation from 0.1 to 9.5 GHz and a two-way amplification of 5 dB in both RF directions. The proposed linearized DA is implemented in 0.13 m RF CMOS process for use in highly-linear UWB communications.