A 0.38THz fully integrated transceiver utilizing quadrature push-push circuitry

The first fully integrated transceiver operating at 0.38THz has been demonstrated in 0.13µm SiGe BiCMOS with ƒ
T
=230GHz. Quadrature push-push circuitry using transformer-coupled stages and Coplanar Strip (CPS) lines are used to realize a terahertz (THz) subharmonic mixer, a quadrature generator, and a quadrupler from a strong fundamental LO quadrature signal generated at the W-band. The measured Equivalent Isotropically Radiated Power (EIRP) is −13dBm and the noise figure (NF) is 35dB, while dissipating a power of 364mW.