Demonstration of a 0.325-THz CMOS amplifier

Abstract

This paper presents a 0.325-THz single-ended amplifier designed in a 28-nm FDSOI CMOS technology. The amplifier consists of four common-source gain stages and utilizes staggered-tuning along with inductive feedback (drain to gate) technique to boost up the gain over a wide frequency band. Having a total power consumption of 28 mW, the amplifier achieves a peak gain of 4.5 dB at 325 GHz. To the best of authors' knowledge, this is the highest operation frequency demonstrated for a silicon amplifier up to date.