A miniature Q-band CMOS LNA with quadruple-cascode topology

Summary form only given, as follows. In this paper, a miniature Q-band low noise amplifier (LNA) is demonstrated using 90-nm Low Power (LP) CMOS technology. The quadruple-cascode topology is utilized to achieve a high gain performance with a compact size. In addition, a transformer is placed between the cascode devices to reduce the noise and enhance the stability and also bandwidth of the LNA. The LNA presents a maximum small signal gain of 20.3 dB and a minimum noise figure of 4.6 dB at 40 GHz.