ABSTRACT
CMOS-based THz signal sources have been recently demonstrated for compact system-on-chip implementation [153, 154, 155, 156, 157, 158, 159, 160, 161] with applications in high-data-rate communication and non-invasive imaging. As THz signal suffers from large propagation loss, the generated signal strength must be strong enough to have sufficient signal-to-noise ratio (SNR) for detection, which imposes grand challenges for high-power signal source designs in CMOS.
