A 0.34-THz varactor-less scalable standing wave radiator array with 5.9% tuning range in 130nm BiCMOS

A 1×4 scalable mm-wave power generation and radiation array is designed using a standing wave harmonic oscillator architecture. A varactor-less scheme has been used to improve the tuning range above 300 GHz. The circuit with on chip patch antennas is implemented in a 130nm SiGe process with 215 GHz of fmax and is measured to provide 5.9% tuning range, -10.5 dBm total radiated power and 1.2 dBm EIRP at 342 GHz while consuming 425 mW DC power from 1.8 V supply voltage.