System-level evaluation of 300GHz CMOS wireless transmitter using cubic mixer

A QAM-capable 300GHz CMOS transmitter operating above/max was recently reported. A key component is a cubic mixer, which is a tripler-based up-conversion mixer. This paper studies the SNR characteristics of cubic mixer theoretically for realizing high-speed communication. The condition of avoiding the interference between the RF signal and spur component is clarified.