millimeter wave integrated circuits

248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration

248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration 150 150

Abstract:

This letter presents a 248 GHz compact direct-conversion transmitter with IQ and LO feedthrough (LOFT) calibration capability, which can achieve a data rate of 20-Gb/s with 16-QAM. The transmitter design incorporates a subharmonic double-balanced mixer configuration, simplifying the complexity of the local oscillator (LO) chain. Furthermore, a Wilkinson power divider …

View on IEEE Xplore