A Nonlinear Transmission Line with Harmonic sub-THz Power Generation in a 40 nm CMOS Technology

This contribution presents a broadband 10 GHz to 0.15 THz power generation with a nonlinear transmission line technique in a 40 nm CMOS technology. In this work, 110 elementary sections of varactors are embedded in the nonlinear transmission line, and it is fully compatible with CMOS technology for a sub-THz harmonic generation. With this compact solution, the area of this sub-THz power generation is 588 × 660 µm
²
. With a 6 dBm 10 GHz input signal, the output power could cover from 20 GHz to 150 GHz. At 100 GHz, the power is -37 dBm, while it is -40 dBm at -150 GHz.