A novel current reuse wideband amplifier using 130 nm Si CMOS technology for 22 – 29 GHz applications

In this paper, a novel wideband amplifier is proposed for 22-29 GHz UWB applications in 0.13 mum Si CMOS technology. In order to reduce the dc current of the amplifier, a novel current reuse technique is adopted in a cascode CMOS transistor. In addition, a low-pass type feedback circuit for the first stage and an inductive feedback circuit for the second stage are designed to make the bandwidth wider. It is expected that the wideband amplifier exhibits a gain of 11.3 dB +/-1.2 dB with a dc power consumption as low as 9.8 mW.