A 52Gb/S 8.9Dbm EIRP 300Ghz-Band Amplifier-Last Outphasing Transmitter with Path Mismatch Calibration in 65nm CMOS

This paper presents a 300 GHz-band amplifier-last outphasing transmitter with path mismatch calibration in 65nm CMOS. The transmitter integrates two independent sub-THz LO generation chains to calibrate the mismatch between two paths in the outphasing topology. After the calibration, the proposed transmitter achieves a minimum EIRP of 5.0dBm over a frequency range from 237GHz to 250GHz, with a maximum of 8.9dBm EIRP at 246GHz. It supports a data rate of 52Gb/s in 16QAM, with a communication distance of 9cm.