Abstract
Terahertz (THz) beamforming arrays are critical to
address emerging applications in wireless communication, sens-
ing, and imaging. Enabling such architectures, particularly with
respect to synchronization of distributed radiating THz sources,
is very challenging due to the sensitivity of such synchronizations
to variations of process, voltage, temperature (PVT), and device
mismatches. In this article, we propose and demonstrate a
multi-layer THz array architecture to address robust frequency
sy